Maintainer	Toshio Ito <debug.ito@gmail.com>
Safe Haskell	Safe-Inferred
Language	Haskell2010

Data.Greskell

Description

Data.Greskell is a Haskell support to use the Gremlin graph query language. For more information, see project README.

This module re-exports most modules from greskell and greskell-core packages. The following modules are excluded from re-export:

Data.Greskell.Extra: extra utility functions.
Data.Greskell.NonEmptyLike: NonEmptyLike class, which is a class of non-empty containers.
Data.Greskell.Logic: Logic type, which is a general-purpose logic tree data structure.
Data.Greskell.Graph.PropertyMap: deprecated PropertyMap class.

Synopsis

unsafeMethodCall :: Greskell a -> Text -> [Text] -> Greskell b
unsafeFunCall :: Text -> [Text] -> Greskell a
toGremlinLazy :: ToGreskell a => a -> Text
toGremlin :: ToGreskell a => a -> Text
gvalueInt :: Integral a => a -> Greskell GValue
gvalue :: Value -> Greskell GValue
valueInt :: Integral a => a -> Greskell Value
value :: Value -> Greskell Value
number :: Scientific -> Greskell Scientific
single :: Greskell a -> Greskell [a]
list :: [Greskell a] -> Greskell [a]
false :: Greskell Bool
true :: Greskell Bool
string :: Text -> Greskell Text
unsafeGreskellLazy :: Text -> Greskell a
unsafeGreskell :: Text -> Greskell a
data Greskell a
type family GreskellReturn a
class ToGreskell a where
- type GreskellReturn a
- toGreskell :: a -> Greskell (GreskellReturn a)
module Data.Greskell.Binder
data AddAnchor s e
data LabeledByProjection s where
- LabeledByProjection :: AsLabel a -> ByProjection s a -> LabeledByProjection s
data ByComparator s where
- ByComparatorProj :: ByProjection s e -> ByComparator s
- ByComparatorComp :: Comparator comp => Greskell comp -> ByComparator (CompareArg comp)
- ByComparatorProjComp :: Comparator comp => ByProjection s (CompareArg comp) -> Greskell comp -> ByComparator s
data ByProjection s e where
- ByProjection :: (ProjectionLike p, ToGreskell p) => p -> ByProjection (ProjectionLikeStart p) (ProjectionLikeEnd p)
class ProjectionLike p where
- type ProjectionLikeStart p
- type ProjectionLikeEnd p
data RepeatEmit c s where
- RepeatEmit :: RepeatEmit c s
- RepeatEmitT :: (WalkType cc, WalkType c, Split cc c) => GTraversal cc s e -> RepeatEmit c s
data RepeatUntil c s where
- RepeatTimes :: Greskell Int -> RepeatUntil c s
- RepeatUntilT :: (WalkType cc, WalkType c, Split cc c) => GTraversal cc s e -> RepeatUntil c s
data RepeatPos
- = RepeatHead
- | RepeatTail
newtype RepeatLabel = RepeatLabel {
- unRepeatLabel :: Text
}
data MatchPattern where
- MatchPattern :: AsLabel a -> Walk Transform a b -> MatchPattern
data MatchResult
data GraphTraversalSource
class Split c p where
- showSplit :: Proxy c -> Proxy p -> String
class Lift from to where
- showLift :: Proxy from -> Proxy to -> String
data SideEffect
data Transform
data Filter
class WalkType t where
- showWalkType :: Proxy t -> String
data Walk c s e
class ToGTraversal g where
- toGTraversal :: WalkType c => g c s e -> GTraversal c s e
- liftWalk :: (WalkType from, WalkType to, Lift from to) => g from s e -> g to s e
- unsafeCastStart :: WalkType c => g c s1 e -> g c s2 e
- unsafeCastEnd :: WalkType c => g c s e1 -> g c s e2
data GraphTraversal c s e
newtype GTraversal c s e = GTraversal {
- unGTraversal :: Greskell (GraphTraversal c s e)
}
source :: Text -> Greskell GraphTraversalSource
sV :: Vertex v => [Greskell (ElementID v)] -> Greskell GraphTraversalSource -> GTraversal Transform () v
sV' :: [Greskell (ElementID AVertex)] -> Greskell GraphTraversalSource -> GTraversal Transform () AVertex
sE :: Edge e => [Greskell (ElementID e)] -> Greskell GraphTraversalSource -> GTraversal Transform () e
sE' :: [Greskell (ElementID AEdge)] -> Greskell GraphTraversalSource -> GTraversal Transform () AEdge
sAddV :: Vertex v => Greskell Text -> Greskell GraphTraversalSource -> GTraversal SideEffect () v
sAddV' :: Greskell Text -> Greskell GraphTraversalSource -> GTraversal SideEffect () AVertex
unsafeGTraversal :: Text -> GTraversal c s e
(&.) :: GTraversal c a b -> Walk c b d -> GTraversal c a d
($.) :: Walk c b d -> GTraversal c a b -> GTraversal c a d
(<$.>) :: Functor f => Walk c b d -> f (GTraversal c a b) -> f (GTraversal c a d)
(<*.>) :: Applicative f => f (Walk c b d) -> f (GTraversal c a b) -> f (GTraversal c a d)
gIterate :: WalkType c => GTraversal c s e -> GTraversal c s ()
unsafeWalk :: WalkType c => Text -> [Text] -> Walk c s e
modulateWith :: WalkType c => Walk c s e -> [Walk c e e] -> Walk c s e
gIdentity :: WalkType c => Walk c s s
gIdentity' :: Walk Filter s s
gFilter :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => g c s e -> Walk p s s
gCyclicPath :: WalkType c => Walk c a a
gCyclicPath' :: Walk Filter a a
gSimplePath :: WalkType c => Walk c a a
gSimplePath' :: Walk Filter a a
gWhereP1 :: WalkType c => Greskell (LabeledP a) -> Maybe (ByProjection a b) -> Walk c a a
gWhereP1' :: Greskell (LabeledP a) -> Maybe (ByProjection a b) -> Walk Filter a a
gWhereP2 :: WalkType c => AsLabel a -> Greskell (LabeledP a) -> Maybe (ByProjection a b) -> Walk c x x
gWhereP2' :: AsLabel a -> Greskell (LabeledP a) -> Maybe (ByProjection a b) -> Walk Filter x x
mPattern :: (WalkType c, Lift c Transform) => AsLabel a -> Walk c a b -> Logic MatchPattern
gMatch :: Logic MatchPattern -> Walk Transform a MatchResult
gIs :: WalkType c => Greskell v -> Walk c v v
gIs' :: Greskell v -> Walk Filter v v
gIsP :: WalkType c => Greskell (P v) -> Walk c v v
gIsP' :: Greskell (P v) -> Walk Filter v v
gHas1 :: (WalkType c, Element s) => Key s v -> Walk c s s
gHas1' :: Element s => Key s v -> Walk Filter s s
gHas2 :: (WalkType c, Element s) => Key s v -> Greskell v -> Walk c s s
gHas2' :: Element s => Key s v -> Greskell v -> Walk Filter s s
gHas2P :: (WalkType c, Element s) => Key s v -> Greskell (P v) -> Walk c s s
gHas2P' :: Element s => Key s v -> Greskell (P v) -> Walk Filter s s
gHasLabel :: (Element s, WalkType c) => Greskell Text -> Walk c s s
gHasLabel' :: Element s => Greskell Text -> Walk Filter s s
gHasLabelP :: (Element s, WalkType c) => Greskell (P Text) -> Walk c s s
gHasLabelP' :: Element s => Greskell (P Text) -> Walk Filter s s
gHasId :: (Element s, WalkType c) => Greskell (ElementID s) -> Walk c s s
gHasId' :: Element s => Greskell (ElementID s) -> Walk Filter s s
gHasIdP :: (Element s, WalkType c) => Greskell (P (ElementID s)) -> Walk c s s
gHasIdP' :: Element s => Greskell (P (ElementID s)) -> Walk Filter s s
gHasKey :: (Element (p v), Property p, WalkType c) => Greskell Text -> Walk c (p v) (p v)
gHasKey' :: (Element (p v), Property p) => Greskell Text -> Walk Filter (p v) (p v)
gHasKeyP :: (Element (p v), Property p, WalkType c) => Greskell (P Text) -> Walk c (p v) (p v)
gHasKeyP' :: (Element (p v), Property p) => Greskell (P Text) -> Walk Filter (p v) (p v)
gHasValue :: (Element (p v), Property p, WalkType c) => Greskell v -> Walk c (p v) (p v)
gHasValue' :: (Element (p v), Property p) => Greskell v -> Walk Filter (p v) (p v)
gHasValueP :: (Element (p v), Property p, WalkType c) => Greskell (P v) -> Walk c (p v) (p v)
gHasValueP' :: (Element (p v), Property p) => Greskell (P v) -> Walk Filter (p v) (p v)
gAnd :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => [g c s e] -> Walk p s s
gOr :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => [g c s e] -> Walk p s s
gNot :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => g c s e -> Walk p s s
gRange :: Greskell Int -> Greskell Int -> Walk Transform s s
gLimit :: Greskell Int -> Walk Transform s s
gTail :: Greskell Int -> Walk Transform s s
gSkip :: Greskell Int -> Walk Transform s s
gRepeat :: (ToGTraversal g, WalkType c) => Maybe RepeatLabel -> Maybe (RepeatPos, RepeatUntil c s) -> Maybe (RepeatPos, RepeatEmit c s) -> g c s s -> Walk c s s
gTimes :: Greskell Int -> Maybe (RepeatPos, RepeatUntil c s)
gUntilHead :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatUntil c s)
gUntilTail :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatUntil c s)
gEmitHead :: Maybe (RepeatPos, RepeatEmit c s)
gEmitTail :: Maybe (RepeatPos, RepeatEmit c s)
gEmitHeadT :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatEmit c s)
gEmitTailT :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatEmit c s)
gLoops :: Maybe RepeatLabel -> Walk Transform s Int
gLocal :: (ToGTraversal g, WalkType c) => g c s e -> Walk c s e
gUnion :: (ToGTraversal g, WalkType c) => [g c s e] -> Walk c s e
gCoalesce :: (ToGTraversal g, Split cc c, Lift Transform c, WalkType c, WalkType cc) => [g cc s e] -> Walk c s e
gChoose3 :: (ToGTraversal g, Split cc c, WalkType cc, WalkType c) => g cc s ep -> g c s e -> g c s e -> Walk c s e
gBarrier :: WalkType c => Maybe (Greskell Int) -> Walk c s s
gDedup :: Maybe (ByProjection s e) -> Walk Transform s s
gDedupN :: AsLabel a -> [AsLabel a] -> Maybe (ByProjection a e) -> Walk Transform s s
gBy :: (ProjectionLike p, ToGreskell p) => p -> ByProjection (ProjectionLikeStart p) (ProjectionLikeEnd p)
gBy1 :: (ProjectionLike p, ToGreskell p) => p -> ByComparator (ProjectionLikeStart p)
gBy2 :: (ProjectionLike p, ToGreskell p, Comparator comp, ProjectionLikeEnd p ~ CompareArg comp) => p -> Greskell comp -> ByComparator (ProjectionLikeStart p)
gOrder :: [ByComparator s] -> Walk Transform s s
gByL :: (ProjectionLike p, ToGreskell p) => AsLabel (ProjectionLikeEnd p) -> p -> LabeledByProjection (ProjectionLikeStart p)
gFlatMap :: (Lift Transform c, Split cc c, ToGTraversal g, WalkType c, WalkType cc) => g cc s e -> Walk c s e
gFlatMap' :: ToGTraversal g => g Transform s e -> Walk Transform s e
gV :: Vertex v => [Greskell (ElementID v)] -> Walk Transform s v
gV' :: [Greskell (ElementID AVertex)] -> Walk Transform s AVertex
gConstant :: Greskell a -> Walk Transform s a
gUnfold :: AsIterator a => Walk Transform a (IteratorItem a)
gAs :: AsLabel a -> Walk Transform a a
gValues :: Element s => [Key s e] -> Walk Transform s e
gProperties :: (Element s, Property p, ElementProperty s ~ p) => [Key s v] -> Walk Transform s (p v)
gId :: Element s => Walk Transform s (ElementID s)
gLabel :: Element s => Walk Transform s Text
gValueMap :: Element s => Keys s -> Walk Transform s (PMap (ElementPropertyContainer s) GValue)
gElementMap :: Element s => Keys s -> Walk Transform s (PMap Single GValue)
gSelect1 :: AsLabel a -> Walk Transform s a
gSelectN :: AsLabel a -> AsLabel b -> [AsLabel c] -> Walk Transform s (SelectedMap GValue)
gSelectBy1 :: AsLabel a -> ByProjection a b -> Walk Transform s b
gSelectByN :: AsLabel a -> AsLabel a -> [AsLabel a] -> ByProjection a b -> Walk Transform s (SelectedMap b)
gProject :: LabeledByProjection s -> [LabeledByProjection s] -> Walk Transform s (PMap Single GValue)
gPath :: Walk Transform s (Path GValue)
gPathBy :: ByProjection a b -> [ByProjection a b] -> Walk Transform s (Path b)
gFold :: Walk Transform a [a]
gCount :: Walk Transform a Int
gOut :: (Vertex v1, Vertex v2) => [Greskell Text] -> Walk Transform v1 v2
gOut' :: Vertex v => [Greskell Text] -> Walk Transform v AVertex
gOutE :: (Vertex v, Edge e) => [Greskell Text] -> Walk Transform v e
gOutE' :: Vertex v => [Greskell Text] -> Walk Transform v AEdge
gOutV :: (Edge e, Vertex v) => Walk Transform e v
gOutV' :: Edge e => Walk Transform e AVertex
gIn :: (Vertex v1, Vertex v2) => [Greskell Text] -> Walk Transform v1 v2
gIn' :: Vertex v => [Greskell Text] -> Walk Transform v AVertex
gInE :: (Vertex v, Edge e) => [Greskell Text] -> Walk Transform v e
gInE' :: Vertex v => [Greskell Text] -> Walk Transform v AEdge
gInV :: (Edge e, Vertex v) => Walk Transform e v
gInV' :: Edge e => Walk Transform e AVertex
gSideEffect :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => g c s e -> Walk p s s
gSideEffect' :: (ToGTraversal g, WalkType c, Split c SideEffect) => g c s e -> Walk SideEffect s s
gAddV :: Vertex v => Greskell Text -> Walk SideEffect a v
gAddV' :: Greskell Text -> Walk SideEffect a AVertex
gDrop :: Element e => Walk SideEffect e e
gDropP :: Property p => Walk SideEffect (p a) (p a)
gProperty :: Element e => Key e v -> Greskell v -> Walk SideEffect e e
gPropertyV :: (Vertex e, vp ~ ElementProperty e, Property vp, Element (vp v)) => Maybe (Greskell Cardinality) -> Key e v -> Greskell v -> [KeyValue (vp v)] -> Walk SideEffect e e
gFrom :: ToGTraversal g => g Transform s e -> AddAnchor s e
gTo :: ToGTraversal g => g Transform s e -> AddAnchor s e
gAddE :: (Vertex vs, Vertex ve, Edge e) => Greskell Text -> AddAnchor vs ve -> Walk SideEffect vs e
gAddE' :: Greskell Text -> AddAnchor AVertex AVertex -> Walk SideEffect AVertex AEdge
data Order a
newtype ComparatorA a = ComparatorA {
- unComparatorA :: a -> a -> Int
}
class Comparator c where
- type CompareArg c
- cCompare :: Greskell c -> Greskell (CompareArg c) -> Greskell (CompareArg c) -> Greskell Int
- cReversed :: Greskell c -> Greskell c
- cThenComparing :: Greskell c -> Greskell c -> Greskell c
class ToGreskell (PParameter p) => PLike p where
- type PParameter p
data P a
newtype PredicateA a = PredicateA {
- unPredicateA :: a -> Bool
}
class Predicate p where
- type PredicateArg p
- pAnd :: Greskell p -> Greskell p -> Greskell p
- pOr :: Greskell p -> Greskell p -> Greskell p
- pTest :: Greskell p -> Greskell (PredicateArg p) -> Greskell Bool
- pNegate :: Greskell p -> Greskell p
pNot :: PLike p => Greskell p -> Greskell p
pEq :: PLike p => PParameter p -> Greskell p
pNeq :: PLike p => PParameter p -> Greskell p
pLt :: PLike p => PParameter p -> Greskell p
pLte :: PLike p => PParameter p -> Greskell p
pGt :: PLike p => PParameter p -> Greskell p
pGte :: PLike p => PParameter p -> Greskell p
pInside :: PLike p => PParameter p -> PParameter p -> Greskell p
pOutside :: PLike p => PParameter p -> PParameter p -> Greskell p
pBetween :: PLike p => PParameter p -> PParameter p -> Greskell p
pWithin :: PLike p => [PParameter p] -> Greskell p
pWithout :: PLike p => [PParameter p] -> Greskell p
oDesc :: Greskell (Order a)
oAsc :: Greskell (Order a)
oDecr :: Greskell (Order a)
oIncr :: Greskell (Order a)
oShuffle :: Greskell (Order a)
data PathEntry a = PathEntry {
- peLabels :: HashSet (AsLabel a)
- peObject :: a
}
newtype Path a = Path {
- unPath :: [PathEntry a]
}
data AVertexProperty v = AVertexProperty {
- avpId :: ElementID (AVertexProperty v)
- avpLabel :: Text
- avpValue :: v
}
data AProperty v = AProperty {
- apKey :: Text
- apValue :: v
}
data AEdge = AEdge {
- aeId :: ElementID AEdge
- aeLabel :: Text
}
data AVertex = AVertex {
- avId :: ElementID AVertex
- avLabel :: Text
}
data Keys a where
- KeysNil :: Keys a
- KeysCons :: Key a b -> Keys a -> Keys a
data KeyValue a where
- KeyValue :: Key a b -> Greskell b -> KeyValue a
- KeyNoValue :: Key a b -> KeyValue a
newtype Key a b = Key {
- unKey :: Text
}
data Cardinality
data T a b
class Property p where
- propertyKey :: p v -> Text
- propertyValue :: p v -> v
class Element e => Edge e
class Element v => Vertex v
class ElementData e => Element e where
- type ElementProperty e :: Type -> Type
- type ElementPropertyContainer e :: Type -> Type
class ElementData e where
- elementId :: e -> ElementID e
- elementLabel :: e -> Text
newtype ElementID e = ElementID {
- unElementID :: GValue
}
unsafeCastElementID :: ElementID a -> ElementID b
tId :: Element a => Greskell (T a (ElementID a))
tKey :: (Element (p v), Property p) => Greskell (T (p v) Text)
tLabel :: Element a => Greskell (T a Text)
tValue :: (Element (p v), Property p) => Greskell (T (p v) v)
cList :: Greskell Cardinality
cSet :: Greskell Cardinality
cSingle :: Greskell Cardinality
key :: Text -> Key a b
unsafeCastKey :: Key a1 b1 -> Key a2 b2
(=:) :: Key a b -> Greskell b -> KeyValue a
singletonKeys :: Key a b -> Keys a
toGremlinKeys :: Keys a -> [Text]
(-:) :: Key a b -> Keys a -> Keys a
pathToPMap :: Path a -> PMap Multi a
makePathEntry :: [AsLabel a] -> a -> PathEntry a
data Parser a
parseJSONViaGValue :: FromGraphSON a => Value -> Parser a
(.:) :: FromGraphSON a => KeyMap GValue -> Key -> Parser a
parseEither :: FromGraphSON a => GValue -> Either String a
parseUnwrapList :: (IsList a, i ~ Item a, FromGraphSON i) => GValue -> Parser a
parseUnwrapAll :: FromJSON a => GValue -> Parser a
class FromGraphSON a where
- parseGraphSON :: GValue -> Parser a
typedGValue' :: Text -> GValueBody -> GValue
nonTypedGValue :: GValueBody -> GValue
data GValue
data GValueBody
- = GObject !(KeyMap GValue)
- | GArray !(Vector GValue)
- | GString !Text
- | GNumber !Scientific
- | GBool !Bool
- | GNull
parseTypedGraphSON :: (GraphSONTyped v, FromJSON v) => Value -> Parser (GraphSON v)
typedGraphSON' :: Text -> v -> GraphSON v
typedGraphSON :: GraphSONTyped v => v -> GraphSON v
nonTypedGraphSON :: v -> GraphSON v
data GraphSON v = GraphSON {
- gsonType :: Maybe Text
- gsonValue :: v
}
class GraphSONTyped a where
- gsonTypeFor :: a -> Text
toList :: forall (c :: Type -> Type -> Type) k v. (IsList (c k v), Item (c k v) ~ (k, v)) => GMap c k v -> [GMapEntry k v]
singleton :: forall (c :: Type -> Type -> Type) k v. (IsList (c k v), Item (c k v) ~ (k, v)) => GMapEntry k v -> GMap c k v
unGMapEntry :: GMapEntry k v -> (k, v)
parseToGMapEntry :: FromJSONKey k => (s -> Parser k) -> (s -> Parser v) -> Either (KeyMap s) (Vector s) -> Parser (GMapEntry k v)
unGMap :: GMap c k v -> c k v
parseToGMap :: (IsList (c k v), Item (c k v) ~ (k, v)) => (s -> Parser k) -> (s -> Parser v) -> (KeyMap s -> Parser (c k v)) -> Either (KeyMap s) (Vector s) -> Parser (GMap c k v)
parseToFlattenedMap :: forall (c :: Type -> Type -> Type) k v s. (IsList (c k v), Item (c k v) ~ (k, v)) => (s -> Parser k) -> (s -> Parser v) -> Vector s -> Parser (FlattenedMap c k v)
newtype FlattenedMap (c :: Type -> Type -> Type) k v = FlattenedMap {
- unFlattenedMap :: c k v
}
data GMap (c :: Type -> Type -> Type) k v = GMap {
- gmapFlat :: !Bool
- gmapValue :: !(c k v)
}
data GMapEntry k v = GMapEntry {
- gmapEntryFlat :: !Bool
- gmapEntryKey :: !k
- gmapEntryValue :: !v
}
module Data.Greskell.AsIterator
module Data.Greskell.AsLabel
module Data.Greskell.PMap

Documentation

unsafeMethodCall #

Arguments

:: Greskell a	target object
-> Text	method name
-> [Text]	arguments
-> Greskell b	return value of the method call

Unsafely create a Greskell that calls the given object method call with the given target and arguments.

unsafeFunCall #

Arguments

:: Text	function name
-> [Text]	arguments
-> Greskell a	return value of the function call

Unsafely create a Greskell that calls the given function with the given arguments.

toGremlinLazy :: ToGreskell a => a -> Text #

Same as toGremlin except that this returns lazy Text.

toGremlin :: ToGreskell a => a -> Text #

Create a readable Gremlin script from Greskell.

gvalueInt :: Integral a => a -> Greskell GValue #

Integer literal as GValue type.

Since: greskell-core-0.1.2.0

gvalue :: Value -> Greskell GValue #

Value literal as GValue type.

Since: greskell-core-0.1.2.0

valueInt :: Integral a => a -> Greskell Value #

Integer literal as Value type.

Since: greskell-core-0.1.2.0

value :: Value -> Greskell Value #

Aeson Value literal.

Note that Number does not distinguish integers from floating-point numbers, so value function may format an integer as a floating-point number. To ensure formatting as integers, use valueInt.

number :: Scientific -> Greskell Scientific #

Arbitrary precision number literal, like "123e8".

single :: Greskell a -> Greskell [a] #

Make a list with a single object. Useful to prevent the Gremlin Server from automatically iterating the result object.

list :: [Greskell a] -> Greskell [a] #

List literal.

false :: Greskell Bool #

Boolean false literal.

true :: Greskell Bool #

Boolean true literal.

string :: Text -> Greskell Text #

Create a String literal in Gremlin script. The content is automatically escaped.

unsafeGreskellLazy #

Arguments

:: Text	Gremlin script
-> Greskell a

Same as unsafeGreskell, but it takes lazy Text.

unsafeGreskell #

Arguments

:: Text	Gremlin script
-> Greskell a

Unsafely create a Greskell of arbitrary type. The given Gremlin script is printed as-is.

data Greskell a #

Gremlin expression of type a.

Greskell is essentially just a piece of Gremlin script with a phantom type. The type a represents the type of data that the script is supposed to evaluate to.

Eq and Ord instances compare Gremlin scripts, NOT the values they evaluate to.

Instances

Instances details

Functor Greskell	Unsafely convert the phantom type.
Instance details Defined in Data.Greskell.Greskell Methods fmap :: (a -> b) -> Greskell a -> Greskell b # (<$) :: a -> Greskell b -> Greskell a #
IsString a => IsString (Greskell a)	Same as `string` except for the input and output type.
Instance details Defined in Data.Greskell.Greskell Methods fromString :: String -> Greskell a #
IsString a => Monoid (Greskell a)	Monoidal operations on `Greskell` assumes `String` operations in Gremlin. `mempty` is the empty String, and `mappend` is String concatenation.
Instance details Defined in Data.Greskell.Greskell Methods mempty :: Greskell a # mappend :: Greskell a -> Greskell a -> Greskell a # mconcat :: [Greskell a] -> Greskell a #
IsString a => Semigroup (Greskell a)	Semigroup operator `<>` on `Greskell` assumes `String` concatenation on Gremlin.
Instance details Defined in Data.Greskell.Greskell Methods (<>) :: Greskell a -> Greskell a -> Greskell a # sconcat :: NonEmpty (Greskell a) -> Greskell a # stimes :: Integral b => b -> Greskell a -> Greskell a #
Num a => Num (Greskell a)	Integer literals and numeric operation in Gremlin
Instance details Defined in Data.Greskell.Greskell Methods (+) :: Greskell a -> Greskell a -> Greskell a # (-) :: Greskell a -> Greskell a -> Greskell a # (*) :: Greskell a -> Greskell a -> Greskell a # negate :: Greskell a -> Greskell a # abs :: Greskell a -> Greskell a # signum :: Greskell a -> Greskell a # fromInteger :: Integer -> Greskell a #
Fractional a => Fractional (Greskell a)	Floating-point number literals and numeric operation in Gremlin
Instance details Defined in Data.Greskell.Greskell Methods (/) :: Greskell a -> Greskell a -> Greskell a # recip :: Greskell a -> Greskell a # fromRational :: Rational -> Greskell a #
Show (Greskell a)
Instance details Defined in Data.Greskell.Greskell Methods showsPrec :: Int -> Greskell a -> ShowS # show :: Greskell a -> String # showList :: [Greskell a] -> ShowS #
Eq (Greskell a)
Instance details Defined in Data.Greskell.Greskell Methods (==) :: Greskell a -> Greskell a -> Bool # (/=) :: Greskell a -> Greskell a -> Bool #
Ord (Greskell a)
Instance details Defined in Data.Greskell.Greskell Methods compare :: Greskell a -> Greskell a -> Ordering # (<) :: Greskell a -> Greskell a -> Bool # (<=) :: Greskell a -> Greskell a -> Bool # (>) :: Greskell a -> Greskell a -> Bool # (>=) :: Greskell a -> Greskell a -> Bool # max :: Greskell a -> Greskell a -> Greskell a # min :: Greskell a -> Greskell a -> Greskell a #
ProjectionLike (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
ProjectionLike (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
ProjectionLike (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (T s e)) Source # type ProjectionLikeEnd (Greskell (T s e)) Source #
ProjectionLike (Greskell (s -> e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (s -> e)) Source # type ProjectionLikeEnd (Greskell (s -> e)) Source #
ToGreskell (Greskell a)	It's just `id`.
Instance details Defined in Data.Greskell.Greskell Associated Types type GreskellReturn (Greskell a) # Methods toGreskell :: Greskell a -> Greskell (GreskellReturn (Greskell a)) #
type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) = e
type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) = e
type ProjectionLikeEnd (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (T s e)) = e
type ProjectionLikeEnd (Greskell (s -> e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (s -> e)) = e
type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) = s
type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) = s
type ProjectionLikeStart (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (T s e)) = s
type ProjectionLikeStart (Greskell (s -> e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (s -> e)) = s
type GreskellReturn (Greskell a)
Instance details Defined in Data.Greskell.Greskell type GreskellReturn (Greskell a) = a

type family GreskellReturn a #

type of return value by Greskell.

Instances

Instances details

type GreskellReturn RepeatLabel Source #
Instance details Defined in Data.Greskell.GTraversal type GreskellReturn RepeatLabel = Text
type GreskellReturn (AsLabel a) Source #
Instance details Defined in Data.Greskell.AsLabel type GreskellReturn (AsLabel a) = Text
type GreskellReturn (Greskell a)
Instance details Defined in Data.Greskell.Greskell type GreskellReturn (Greskell a) = a
type GreskellReturn (Key a b) Source #
Instance details Defined in Data.Greskell.Graph type GreskellReturn (Key a b) = Text
type GreskellReturn (GTraversal c s e) Source #
Instance details Defined in Data.Greskell.GTraversal type GreskellReturn (GTraversal c s e) = GraphTraversal c s e
type GreskellReturn (Walk c s e) Source #
Instance details Defined in Data.Greskell.GTraversal type GreskellReturn (Walk c s e) = GraphTraversal c s e

class ToGreskell a where #

Something that can convert to Greskell.

Associated Types

type GreskellReturn a #

type of return value by Greskell.

Methods

toGreskell :: a -> Greskell (GreskellReturn a) #

Instances

Instances details

ToGreskell RepeatLabel Source #	Return Gremlin String literal.
Instance details Defined in Data.Greskell.GTraversal Associated Types type GreskellReturn RepeatLabel # Methods toGreskell :: RepeatLabel -> Greskell (GreskellReturn RepeatLabel) #
ToGreskell (AsLabel a) Source #	Returns the `Text` as a Gremlin string.
Instance details Defined in Data.Greskell.AsLabel Associated Types type GreskellReturn (AsLabel a) # Methods toGreskell :: AsLabel a -> Greskell (GreskellReturn (AsLabel a)) #
ToGreskell (Greskell a)	It's just `id`.
Instance details Defined in Data.Greskell.Greskell Associated Types type GreskellReturn (Greskell a) # Methods toGreskell :: Greskell a -> Greskell (GreskellReturn (Greskell a)) #
ToGreskell (Key a b) Source #	Return Gremlin String literal.
Instance details Defined in Data.Greskell.Graph Associated Types type GreskellReturn (Key a b) # Methods toGreskell :: Key a b -> Greskell (GreskellReturn (Key a b)) #
ToGreskell (GTraversal c s e) Source #	Unwrap `GTraversal` data constructor.
Instance details Defined in Data.Greskell.GTraversal Associated Types type GreskellReturn (GTraversal c s e) # Methods toGreskell :: GTraversal c s e -> Greskell (GreskellReturn (GTraversal c s e)) #
WalkType c => ToGreskell (Walk c s e) Source #	The `Walk` is first converted to `GTraversal`, and it's converted to `Greskell`.
Instance details Defined in Data.Greskell.GTraversal Associated Types type GreskellReturn (Walk c s e) # Methods toGreskell :: Walk c s e -> Greskell (GreskellReturn (Walk c s e)) #

module Data.Greskell.Binder

data AddAnchor s e Source #

Vertex anchor for gAddE. It corresponds to .from or .to step following an .addE step.

Type s is the input Vertex for the .addE step. Type e is the type of the anchor Vertex that the AddAnchor yields. So, .addE step creates an edge between s and e.

Since: 0.2.0.0

data LabeledByProjection s where Source #

A ByProjection associated with an AsLabel. You can construct it by gByL.

Since: 1.0.0.0

Constructors

LabeledByProjection :: AsLabel a -> ByProjection s a -> LabeledByProjection s

data ByComparator s where Source #

Comparison of type s used in .by step. You can also use gBy1 and gBy2 to construct ByComparator.

Constructors

ByComparatorProj :: ByProjection s e -> ByComparator s	Type `s` is projected to type `e`, and compared by the natural comparator of type `e`.
ByComparatorComp :: Comparator comp => Greskell comp -> ByComparator (CompareArg comp)	Type `s` is compared by the `Comparator` `comp`.
ByComparatorProjComp :: Comparator comp => ByProjection s (CompareArg comp) -> Greskell comp -> ByComparator s	Type `s` is projected to type `CompareArg comp`, and compared by the `Comparator` `comp`.

Instances

Instances details

IsString (ByComparator s) Source #	`ByComparatorProj` by literal property key.
Instance details Defined in Data.Greskell.GTraversal Methods fromString :: String -> ByComparator s #

data ByProjection s e where Source #

Projection from type s to type e used in .by step. You can also use gBy to construct ByProjection.

Constructors

ByProjection :: (ProjectionLike p, ToGreskell p) => p -> ByProjection (ProjectionLikeStart p) (ProjectionLikeEnd p)

Instances

Instances details

IsString (ByProjection s e) Source #	Projection by literal property key.
Instance details Defined in Data.Greskell.GTraversal Methods fromString :: String -> ByProjection s e #
ProjectionLike (ByProjection s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (ByProjection s e) Source # type ProjectionLikeEnd (ByProjection s e) Source #
type ProjectionLikeEnd (ByProjection s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (ByProjection s e) = e
type ProjectionLikeStart (ByProjection s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (ByProjection s e) = s

class ProjectionLike p Source #

Data types that mean a projection from one type to another.

Associated Types

type ProjectionLikeStart p Source #

The start type of the projection.

type ProjectionLikeEnd p Source #

The end type of the projection.

Instances

Instances details

ProjectionLike (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
ProjectionLike (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
ProjectionLike (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (T s e)) Source # type ProjectionLikeEnd (Greskell (T s e)) Source #
ProjectionLike (Greskell (s -> e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (s -> e)) Source # type ProjectionLikeEnd (Greskell (s -> e)) Source #
ProjectionLike (ByProjection s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (ByProjection s e) Source # type ProjectionLikeEnd (ByProjection s e) Source #
ProjectionLike (Key s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Key s e) Source # type ProjectionLikeEnd (Key s e) Source #
ProjectionLike (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (GTraversal Filter s e) Source # type ProjectionLikeEnd (GTraversal Filter s e) Source #
ProjectionLike (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (GTraversal Transform s e) Source # type ProjectionLikeEnd (GTraversal Transform s e) Source #
ProjectionLike (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Walk Filter s e) Source # type ProjectionLikeEnd (Walk Filter s e) Source #
ProjectionLike (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Walk Transform s e) Source # type ProjectionLikeEnd (Walk Transform s e) Source #

data RepeatEmit c s where Source #

.emit modulator step.

Type c is the WalkType of the parent .repeat step. Type s is the start (and end) type of the .repeat step.

Since: 1.0.1.0

Constructors

RepeatEmit :: RepeatEmit c s	`.emit` modulator without argument. It always emits the input traverser of type `s`.
RepeatEmitT :: (WalkType cc, WalkType c, Split cc c) => GTraversal cc s e -> RepeatEmit c s	`.emit` modulator with a sub-traversal as the predicate to decide if it emits the traverser.

Instances

Instances details

Show (RepeatEmit c s) Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> RepeatEmit c s -> ShowS # show :: RepeatEmit c s -> String # showList :: [RepeatEmit c s] -> ShowS #

data RepeatUntil c s where Source #

.until or .times modulator step.

Type c is the WalkType of the parent .repeat step. Type s is the start (and end) type of the .repeat step.

Since: 1.0.1.0

Constructors

RepeatTimes :: Greskell Int -> RepeatUntil c s	`.times` modulator.
RepeatUntilT :: (WalkType cc, WalkType c, Split cc c) => GTraversal cc s e -> RepeatUntil c s	`.until` modulator with a sub-traversal as the predicate to decide if the repetition should stop.

Instances

Instances details

Show (RepeatUntil c s) Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> RepeatUntil c s -> ShowS # show :: RepeatUntil c s -> String # showList :: [RepeatUntil c s] -> ShowS #

data RepeatPos Source #

Position of a step modulator relative to .repeat step.

Since: 1.0.1.0

Constructors

RepeatHead	Modulator before the `.repeat` step.
RepeatTail	Modulator after the `.repeat` step.

Instances

Instances details

Bounded RepeatPos Source #
Instance details Defined in Data.Greskell.GTraversal Methods minBound :: RepeatPos # maxBound :: RepeatPos #
Enum RepeatPos Source #
Instance details Defined in Data.Greskell.GTraversal Methods succ :: RepeatPos -> RepeatPos # pred :: RepeatPos -> RepeatPos # toEnum :: Int -> RepeatPos # fromEnum :: RepeatPos -> Int # enumFrom :: RepeatPos -> [RepeatPos] # enumFromThen :: RepeatPos -> RepeatPos -> [RepeatPos] # enumFromTo :: RepeatPos -> RepeatPos -> [RepeatPos] # enumFromThenTo :: RepeatPos -> RepeatPos -> RepeatPos -> [RepeatPos] #
Show RepeatPos Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> RepeatPos -> ShowS # show :: RepeatPos -> String # showList :: [RepeatPos] -> ShowS #
Eq RepeatPos Source #
Instance details Defined in Data.Greskell.GTraversal Methods (==) :: RepeatPos -> RepeatPos -> Bool # (/=) :: RepeatPos -> RepeatPos -> Bool #
Ord RepeatPos Source #
Instance details Defined in Data.Greskell.GTraversal Methods compare :: RepeatPos -> RepeatPos -> Ordering # (<) :: RepeatPos -> RepeatPos -> Bool # (<=) :: RepeatPos -> RepeatPos -> Bool # (>) :: RepeatPos -> RepeatPos -> Bool # (>=) :: RepeatPos -> RepeatPos -> Bool # max :: RepeatPos -> RepeatPos -> RepeatPos # min :: RepeatPos -> RepeatPos -> RepeatPos #

newtype RepeatLabel Source #

A label that points to a loop created by .repeat step. It can be used by .loops step to specify the loop.

Since: 1.0.1.0

Constructors

RepeatLabel
Fields unRepeatLabel :: Text

Instances

Instances details

IsString RepeatLabel Source #
Instance details Defined in Data.Greskell.GTraversal Methods fromString :: String -> RepeatLabel #
Show RepeatLabel Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> RepeatLabel -> ShowS # show :: RepeatLabel -> String # showList :: [RepeatLabel] -> ShowS #
Eq RepeatLabel Source #
Instance details Defined in Data.Greskell.GTraversal Methods (==) :: RepeatLabel -> RepeatLabel -> Bool # (/=) :: RepeatLabel -> RepeatLabel -> Bool #
Ord RepeatLabel Source #
Instance details Defined in Data.Greskell.GTraversal Methods compare :: RepeatLabel -> RepeatLabel -> Ordering # (<) :: RepeatLabel -> RepeatLabel -> Bool # (<=) :: RepeatLabel -> RepeatLabel -> Bool # (>) :: RepeatLabel -> RepeatLabel -> Bool # (>=) :: RepeatLabel -> RepeatLabel -> Bool # max :: RepeatLabel -> RepeatLabel -> RepeatLabel # min :: RepeatLabel -> RepeatLabel -> RepeatLabel #
ToGreskell RepeatLabel Source #	Return Gremlin String literal.
Instance details Defined in Data.Greskell.GTraversal Associated Types type GreskellReturn RepeatLabel # Methods toGreskell :: RepeatLabel -> Greskell (GreskellReturn RepeatLabel) #
type GreskellReturn RepeatLabel Source #
Instance details Defined in Data.Greskell.GTraversal type GreskellReturn RepeatLabel = Text

data MatchPattern where Source #

A pattern for .match step.

Since: 1.2.0.0

Constructors

MatchPattern :: AsLabel a -> Walk Transform a b -> MatchPattern

A pattern with the starting .as label followed by traversal steps.

data MatchResult Source #

Result of .match step.

Since: 1.2.0.0

data GraphTraversalSource Source #

GraphTraversalSource class object of TinkerPop. It is a factory object of GraphTraversals.

Instances

Instances details

Show GraphTraversalSource Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> GraphTraversalSource -> ShowS # show :: GraphTraversalSource -> String # showList :: [GraphTraversalSource] -> ShowS #

class Split c p where Source #

Relation of WalkTypes where the child walk c is split from the parent walk p.

When splitting, transformation effect done in the child walk is rolled back (canceled) in the parent walk.

Methods

showSplit :: Proxy c -> Proxy p -> String Source #

Only for tests.

Instances

Instances details

WalkType p => Split Filter p Source #
Instance details Defined in Data.Greskell.GTraversal Methods showSplit :: Proxy Filter -> Proxy p -> String Source #
Split SideEffect SideEffect Source #	`SideEffect` in the child walk remains in the parent walk.
Instance details Defined in Data.Greskell.GTraversal Methods showSplit :: Proxy SideEffect -> Proxy SideEffect -> String Source #
WalkType p => Split Transform p Source #	`Transform` effect in the child walk is rolled back in the parent walk.
Instance details Defined in Data.Greskell.GTraversal Methods showSplit :: Proxy Transform -> Proxy p -> String Source #

class Lift from to where Source #

Relation of WalkTypes where one includes the other. from can be lifted to to, because to is more powerful than from.

Methods

showLift :: Proxy from -> Proxy to -> String Source #

Only for tests.

Instances

Instances details

WalkType c => Lift Filter c Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Filter -> Proxy c -> String Source #
Lift SideEffect SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy SideEffect -> Proxy SideEffect -> String Source #
Lift Transform SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Transform -> Proxy SideEffect -> String Source #
Lift Transform Transform Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Transform -> Proxy Transform -> String Source #

data SideEffect Source #

WalkType for steps that may have side-effects.

A side-effect here means manipulation of the "sideEffect" in Gremlin context (i.e. the stash of data kept in a Traversal object), as well as interaction with the world outside the Traversal object.

For example, the following steps (in Gremlin) all have side-effects.

.addE('label')
.aggregate('x')
.sideEffect(System.out.&println)
.map { some_variable += 1 }

Instances

Instances details

WalkType SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showWalkType :: Proxy SideEffect -> String Source #
Lift SideEffect SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy SideEffect -> Proxy SideEffect -> String Source #
Lift Transform SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Transform -> Proxy SideEffect -> String Source #
Split SideEffect SideEffect Source #	`SideEffect` in the child walk remains in the parent walk.
Instance details Defined in Data.Greskell.GTraversal Methods showSplit :: Proxy SideEffect -> Proxy SideEffect -> String Source #

data Transform Source #

WalkType for steps without any side-effects. This includes transformations, reordring, injections and graph traversal actions.

A Walk w is Transform type iff:

gSideEffect w == gIdentity

Obviously, every Filter type Walks are also Transform type.

Instances

Instances details

WalkType Transform Source #
Instance details Defined in Data.Greskell.GTraversal Methods showWalkType :: Proxy Transform -> String Source #
Lift Transform SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Transform -> Proxy SideEffect -> String Source #
Lift Transform Transform Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Transform -> Proxy Transform -> String Source #
WalkType p => Split Transform p Source #	`Transform` effect in the child walk is rolled back in the parent walk.
Instance details Defined in Data.Greskell.GTraversal Methods showSplit :: Proxy Transform -> Proxy p -> String Source #
ProjectionLike (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
ProjectionLike (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (GTraversal Transform s e) Source # type ProjectionLikeEnd (GTraversal Transform s e) Source #
ProjectionLike (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Walk Transform s e) Source # type ProjectionLikeEnd (Walk Transform s e) Source #
type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) = e
type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) = s
type ProjectionLikeEnd (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (GTraversal Transform s e) = e
type ProjectionLikeEnd (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Walk Transform s e) = e
type ProjectionLikeStart (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (GTraversal Transform s e) = s
type ProjectionLikeStart (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Walk Transform s e) = s

data Filter Source #

WalkType for filtering steps.

A filtering step is a step that does filtering only. It takes input and emits some of them without any modification, reordering, traversal actions, or side-effects. Filtering decision must be solely based on each element.

A Walk w is Filter type iff:

(gSideEffect w == gIdentity) AND (gFilter w == w)

If Walks w1 and w2 are Filter type, then

gAnd [w1, w2] == w1 >>> w2 == w2 >>> w1

Instances

Instances details

WalkType Filter Source #
Instance details Defined in Data.Greskell.GTraversal Methods showWalkType :: Proxy Filter -> String Source #
WalkType c => Lift Filter c Source #
Instance details Defined in Data.Greskell.GTraversal Methods showLift :: Proxy Filter -> Proxy c -> String Source #
WalkType p => Split Filter p Source #
Instance details Defined in Data.Greskell.GTraversal Methods showSplit :: Proxy Filter -> Proxy p -> String Source #
ProjectionLike (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
ProjectionLike (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (GTraversal Filter s e) Source # type ProjectionLikeEnd (GTraversal Filter s e) Source #
ProjectionLike (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Walk Filter s e) Source # type ProjectionLikeEnd (Walk Filter s e) Source #
type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) = e
type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) = s
type ProjectionLikeEnd (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (GTraversal Filter s e) = e
type ProjectionLikeEnd (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Walk Filter s e) = e
type ProjectionLikeStart (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (GTraversal Filter s e) = s
type ProjectionLikeStart (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Walk Filter s e) = s

class WalkType t where Source #

Class of phantom type markers to describe the effect of the walk/traversals.

Methods

showWalkType :: Proxy t -> String Source #

Only for tests.

Instances

Instances details

WalkType Filter Source #
Instance details Defined in Data.Greskell.GTraversal Methods showWalkType :: Proxy Filter -> String Source #
WalkType SideEffect Source #
Instance details Defined in Data.Greskell.GTraversal Methods showWalkType :: Proxy SideEffect -> String Source #
WalkType Transform Source #
Instance details Defined in Data.Greskell.GTraversal Methods showWalkType :: Proxy Transform -> String Source #

data Walk c s e Source #

A chain of one or more Gremlin steps. Like GTraversal, type s is the input, type e is the output, and type c is a marker to describe the step.

Walk represents a chain of method calls such as .has(x).outE(). Because this is not a Gremlin (Groovy) expression, we use bare Walk, not Greskell Walk.

Walk is a Category. You can use functions from Control.Category to compose Walks. This is equivalent to making a chain of method calls in Gremlin.

Walk is not an Eq, because it's difficult to define true equality between Gremlin method calls. If we define it naively, it might have conflict with Category law.

Instances

Instances details

ToGTraversal Walk Source #	To convert a `Walk` to `GTraversal`, it calls its static method version on `__` class.
Instance details Defined in Data.Greskell.GTraversal Methods toGTraversal :: WalkType c => Walk c s e -> GTraversal c s e Source # liftWalk :: (WalkType from, WalkType to, Lift from to) => Walk from s e -> Walk to s e Source # unsafeCastStart :: WalkType c => Walk c s1 e -> Walk c s2 e Source # unsafeCastEnd :: WalkType c => Walk c s e1 -> Walk c s e2 Source #
WalkType c => Category (Walk c :: Type -> Type -> TYPE LiftedRep) Source #	`id` is `gIdentity`.
Instance details Defined in Data.Greskell.GTraversal Methods id :: forall (a :: k). Walk c a a # (.) :: forall (b :: k) (c0 :: k) (a :: k). Walk c b c0 -> Walk c a b -> Walk c a c0 #
Bifunctor (Walk c) Source #	Unsafely convert input and output types.
Instance details Defined in Data.Greskell.GTraversal Methods bimap :: (a -> b) -> (c0 -> d) -> Walk c a c0 -> Walk c b d # first :: (a -> b) -> Walk c a c0 -> Walk c b c0 # second :: (b -> c0) -> Walk c a b -> Walk c a c0 #
Functor (Walk c s) Source #	Unsafely convert output type
Instance details Defined in Data.Greskell.GTraversal Methods fmap :: (a -> b) -> Walk c s a -> Walk c s b # (<$) :: a -> Walk c s b -> Walk c s a #
WalkType c => Monoid (Walk c s s) Source #	Based on `Category` and `Semigroup`. `mempty` is `id`.
Instance details Defined in Data.Greskell.GTraversal Methods mempty :: Walk c s s # mappend :: Walk c s s -> Walk c s s -> Walk c s s # mconcat :: [Walk c s s] -> Walk c s s #
WalkType c => Semigroup (Walk c s s) Source #	Based on `Category`. `<>` is `>>>`.
Instance details Defined in Data.Greskell.GTraversal Methods (<>) :: Walk c s s -> Walk c s s -> Walk c s s # sconcat :: NonEmpty (Walk c s s) -> Walk c s s # stimes :: Integral b => b -> Walk c s s -> Walk c s s #
Show (Walk c s e) Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> Walk c s e -> ShowS # show :: Walk c s e -> String # showList :: [Walk c s e] -> ShowS #
ProjectionLike (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Walk Filter s e) Source # type ProjectionLikeEnd (Walk Filter s e) Source #
ProjectionLike (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Walk Transform s e) Source # type ProjectionLikeEnd (Walk Transform s e) Source #
WalkType c => ToGreskell (Walk c s e) Source #	The `Walk` is first converted to `GTraversal`, and it's converted to `Greskell`.
Instance details Defined in Data.Greskell.GTraversal Associated Types type GreskellReturn (Walk c s e) # Methods toGreskell :: Walk c s e -> Greskell (GreskellReturn (Walk c s e)) #
type ProjectionLikeEnd (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Walk Filter s e) = e
type ProjectionLikeEnd (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Walk Transform s e) = e
type ProjectionLikeStart (Walk Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Walk Filter s e) = s
type ProjectionLikeStart (Walk Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Walk Transform s e) = s
type GreskellReturn (Walk c s e) Source #
Instance details Defined in Data.Greskell.GTraversal type GreskellReturn (Walk c s e) = GraphTraversal c s e

class ToGTraversal g where Source #

Types that can convert to GTraversal.

Methods

toGTraversal :: WalkType c => g c s e -> GTraversal c s e Source #

liftWalk :: (WalkType from, WalkType to, Lift from to) => g from s e -> g to s e Source #

Lift WalkType from to to. Use this for type matching.

unsafeCastStart :: WalkType c => g c s1 e -> g c s2 e Source #

Unsafely cast the start type s1 into s2.

It is recommended that s2 is coercible to s1 in terms of FromGraphSON. That is, if s2 can parse a GValue, s1 should also be able to parse that GValue.

Since: 1.0.0.0

unsafeCastEnd :: WalkType c => g c s e1 -> g c s e2 Source #

Unsafely cast the end type e1 into e2. See unsafeCastStart.

Since: 1.0.0.0

Instances

Instances details

ToGTraversal GTraversal Source #
Instance details Defined in Data.Greskell.GTraversal Methods toGTraversal :: WalkType c => GTraversal c s e -> GTraversal c s e Source # liftWalk :: (WalkType from, WalkType to, Lift from to) => GTraversal from s e -> GTraversal to s e Source # unsafeCastStart :: WalkType c => GTraversal c s1 e -> GTraversal c s2 e Source # unsafeCastEnd :: WalkType c => GTraversal c s e1 -> GTraversal c s e2 Source #
ToGTraversal Walk Source #	To convert a `Walk` to `GTraversal`, it calls its static method version on `__` class.
Instance details Defined in Data.Greskell.GTraversal Methods toGTraversal :: WalkType c => Walk c s e -> GTraversal c s e Source # liftWalk :: (WalkType from, WalkType to, Lift from to) => Walk from s e -> Walk to s e Source # unsafeCastStart :: WalkType c => Walk c s1 e -> Walk c s2 e Source # unsafeCastEnd :: WalkType c => Walk c s e1 -> Walk c s e2 Source #

data GraphTraversal c s e Source #

Phantom type for GraphTraversal class. In greskell, we usually use GTraversal instead of Greskell GraphTraversal.

Instances

Instances details

Bifunctor (GraphTraversal c) Source #	Unsafely convert input and output types.
Instance details Defined in Data.Greskell.GTraversal Methods bimap :: (a -> b) -> (c0 -> d) -> GraphTraversal c a c0 -> GraphTraversal c b d # first :: (a -> b) -> GraphTraversal c a c0 -> GraphTraversal c b c0 # second :: (b -> c0) -> GraphTraversal c a b -> GraphTraversal c a c0 #
ProjectionLike (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
ProjectionLike (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source # type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
Functor (GraphTraversal c s) Source #	Unsafely convert output type.
Instance details Defined in Data.Greskell.GTraversal Methods fmap :: (a -> b) -> GraphTraversal c s a -> GraphTraversal c s b # (<$) :: a -> GraphTraversal c s b -> GraphTraversal c s a #
Show (GraphTraversal c s e) Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> GraphTraversal c s e -> ShowS # show :: GraphTraversal c s e -> String # showList :: [GraphTraversal c s e] -> ShowS #
AsIterator (GraphTraversal c s e) Source #	`GraphTraversal` is an Iterator.
Instance details Defined in Data.Greskell.GTraversal Associated Types type IteratorItem (GraphTraversal c s e) #
type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (GraphTraversal Filter s e)) = e
type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (GraphTraversal Transform s e)) = e
type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (GraphTraversal Filter s e)) = s
type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (GraphTraversal Transform s e)) = s
type IteratorItem (GraphTraversal c s e) Source #
Instance details Defined in Data.Greskell.GTraversal type IteratorItem (GraphTraversal c s e) = e

newtype GTraversal c s e Source #

GraphTraversal class object of TinkerPop. It takes data s from upstream and emits data e to downstream. Type c is called "walk type", a marker to describe the effect of the traversal.

GTraversal is NOT a Category. Because a GraphTraversal object keeps some context data, the starting (left-most) GraphTraversal object controls most of the behavior of entire composition of traversals and steps. This violates Category law.

Constructors

GTraversal
Fields unGTraversal :: Greskell (GraphTraversal c s e)

Instances

Instances details

ToGTraversal GTraversal Source #
Instance details Defined in Data.Greskell.GTraversal Methods toGTraversal :: WalkType c => GTraversal c s e -> GTraversal c s e Source # liftWalk :: (WalkType from, WalkType to, Lift from to) => GTraversal from s e -> GTraversal to s e Source # unsafeCastStart :: WalkType c => GTraversal c s1 e -> GTraversal c s2 e Source # unsafeCastEnd :: WalkType c => GTraversal c s e1 -> GTraversal c s e2 Source #
Bifunctor (GTraversal c) Source #	Unsafely convert input and output types.
Instance details Defined in Data.Greskell.GTraversal Methods bimap :: (a -> b) -> (c0 -> d) -> GTraversal c a c0 -> GTraversal c b d # first :: (a -> b) -> GTraversal c a c0 -> GTraversal c b c0 # second :: (b -> c0) -> GTraversal c a b -> GTraversal c a c0 #
Functor (GTraversal c s) Source #	Unsafely convert output type.
Instance details Defined in Data.Greskell.GTraversal Methods fmap :: (a -> b) -> GTraversal c s a -> GTraversal c s b # (<$) :: a -> GTraversal c s b -> GTraversal c s a #
Show (GTraversal c s e) Source #
Instance details Defined in Data.Greskell.GTraversal Methods showsPrec :: Int -> GTraversal c s e -> ShowS # show :: GTraversal c s e -> String # showList :: [GTraversal c s e] -> ShowS #
ProjectionLike (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (GTraversal Filter s e) Source # type ProjectionLikeEnd (GTraversal Filter s e) Source #
ProjectionLike (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (GTraversal Transform s e) Source # type ProjectionLikeEnd (GTraversal Transform s e) Source #
ToGreskell (GTraversal c s e) Source #	Unwrap `GTraversal` data constructor.
Instance details Defined in Data.Greskell.GTraversal Associated Types type GreskellReturn (GTraversal c s e) # Methods toGreskell :: GTraversal c s e -> Greskell (GreskellReturn (GTraversal c s e)) #
type ProjectionLikeEnd (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (GTraversal Filter s e) = e
type ProjectionLikeEnd (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (GTraversal Transform s e) = e
type ProjectionLikeStart (GTraversal Filter s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (GTraversal Filter s e) = s
type ProjectionLikeStart (GTraversal Transform s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (GTraversal Transform s e) = s
type GreskellReturn (GTraversal c s e) Source #
Instance details Defined in Data.Greskell.GTraversal type GreskellReturn (GTraversal c s e) = GraphTraversal c s e

source Source #

Arguments

:: Text	variable name of `GraphTraversalSource`
-> Greskell GraphTraversalSource

Create GraphTraversalSource from a varible name in Gremlin

sV Source #

Arguments

:: Vertex v
=> [Greskell (ElementID v)]	vertex IDs
-> Greskell GraphTraversalSource
-> GTraversal Transform () v

.V() method on GraphTraversalSource.

sV' Source #

Arguments

:: [Greskell (ElementID AVertex)]	vertex IDs
-> Greskell GraphTraversalSource
-> GTraversal Transform () AVertex

Monomorphic version of sV.

sE Source #

Arguments

:: Edge e
=> [Greskell (ElementID e)]	edge IDs
-> Greskell GraphTraversalSource
-> GTraversal Transform () e

.E() method on GraphTraversalSource.

sE' Source #

Arguments

:: [Greskell (ElementID AEdge)]	edge IDs
-> Greskell GraphTraversalSource
-> GTraversal Transform () AEdge

Monomorphic version of sE.

sAddV Source #

Arguments

:: Vertex v
=> Greskell Text	vertex label
-> Greskell GraphTraversalSource
-> GTraversal SideEffect () v

.addV() method on GraphTraversalSource.

Since: 0.2.0.0

sAddV' :: Greskell Text -> Greskell GraphTraversalSource -> GTraversal SideEffect () AVertex Source #

Monomorphic version of sAddV.

Since: 0.2.0.0

unsafeGTraversal :: Text -> GTraversal c s e Source #

Unsafely create GTraversal from the given raw Gremlin script.

(&.) :: GTraversal c a b -> Walk c b d -> GTraversal c a d infixl 1 Source #

Apply the Walk to the GTraversal. In Gremlin, this means calling a chain of methods on the Traversal object.

($.) :: Walk c b d -> GTraversal c a b -> GTraversal c a d infixr 0 Source #

Same as &. with arguments flipped.

(<$.>) :: Functor f => Walk c b d -> f (GTraversal c a b) -> f (GTraversal c a d) infixr 0 Source #

Similar to <$>, but for $..

Since: 0.2.1.0

(<*.>) :: Applicative f => f (Walk c b d) -> f (GTraversal c a b) -> f (GTraversal c a d) infixr 0 Source #

Similar to <*>, but for $..

Since: 0.2.1.0

gIterate :: WalkType c => GTraversal c s e -> GTraversal c s () Source #

.iterate method on GraphTraversal.

gIterate is not a Walk because it's usually used to terminate the method chain of Gremlin steps. The returned GTraversal outputs nothing, thus its end type is ().

Since: 1.1.0.0

unsafeWalk Source #

Arguments

:: WalkType c
=> Text	step method name (e.g. "outE")
-> [Text]	step method arguments
-> Walk c s e

Unsafely create a Walk that represents a single method call on a GraphTraversal.

modulateWith Source #

Arguments

:: WalkType c
=> Walk c s e	the main `Walk`
-> [Walk c e e]	the modulating `Walk`s
-> Walk c s e

Optionally modulate the main Walk with some modulating Walks.

gIdentity :: WalkType c => Walk c s s Source #

.identity step.

gIdentity' :: Walk Filter s s Source #

Monomorphic version of gIdentity.

gFilter :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => g c s e -> Walk p s s Source #

.filter step that takes a traversal.

gCyclicPath :: WalkType c => Walk c a a Source #

.cyclicPath step.

Since: 1.0.1.0

gCyclicPath' :: Walk Filter a a Source #

Monomorphic version of gCyclicPath.

Since: 1.0.1.0

gSimplePath :: WalkType c => Walk c a a Source #

.simplePath step.

Since: 1.0.1.0

gSimplePath' :: Walk Filter a a Source #

Monomorphic version of gSimplePath.

Since: 1.0.1.0

gWhereP1 Source #

Arguments

:: WalkType c
=> Greskell (LabeledP a)	the `P` argument for `.where` step.
-> Maybe (ByProjection a b)	optional `.by` modulation following the `.where` step.
-> Walk c a a

.where step with P argument only.

If the ByProjection argument is Nothing, comparison is performed on the type a. You have to ensure that the comparator included in the LabeledP argument can handle the type a. Usually this means the type a should implement Java's Comparable interface (this is true for most Java classes).

If the ByProjection argument is given, comparison is performed on the projected values of type b. So, the type b should implement Java's Comparable interface.

Since: 1.2.0.0

gWhereP1' :: Greskell (LabeledP a) -> Maybe (ByProjection a b) -> Walk Filter a a Source #

Monomorphic version of gWhereP1.

Since: 1.2.0.0

gWhereP2 Source #

Arguments

:: WalkType c
=> AsLabel a	the starting label of `.where`.
-> Greskell (LabeledP a)	the `P` argument for `.where` step.
-> Maybe (ByProjection a b)	optional `.by` modulation following the `.where` step.
-> Walk c x x

.where step with the starting label and P arguments. See also gWhereP1.

Since: 1.2.0.0

gWhereP2' :: AsLabel a -> Greskell (LabeledP a) -> Maybe (ByProjection a b) -> Walk Filter x x Source #

Monomorphic version of gWhereP2.

Since: 1.2.0.0

mPattern :: (WalkType c, Lift c Transform) => AsLabel a -> Walk c a b -> Logic MatchPattern Source #

A convenient function to make a MatchPattern wrapped by Leaf.

Since: 1.2.0.0

gMatch :: Logic MatchPattern -> Walk Transform a MatchResult Source #

.match step.

If the top-level Logic of the argument is And, the patterns are directly passed to the .match step arguments.

The result of .match step, MatchResult, is an opaque type. Basically you should not use it. Instead, you should use gSelectN etc to access the path history labels inside the MatchPattern.

Since: 1.2.0.0

gIs :: WalkType c => Greskell v -> Walk c v v Source #

.is step of simple equality.

Since: 1.0.1.0

gIs' :: Greskell v -> Walk Filter v v Source #

Monomorphic version of gIs.

Since: 1.0.1.0

gIsP :: WalkType c => Greskell (P v) -> Walk c v v Source #

.is step with predicate P.

Since: 1.0.1.0

gIsP' :: Greskell (P v) -> Walk Filter v v Source #

Monomorphic version of gIsP.

Since: 1.0.1.0

gHas1 Source #

Arguments

:: (WalkType c, Element s)
=> Key s v	property key
-> Walk c s s

.has step with one argument.

gHas1' :: Element s => Key s v -> Walk Filter s s Source #

Monomorphic version of gHas1.

gHas2 :: (WalkType c, Element s) => Key s v -> Greskell v -> Walk c s s Source #

.has step with two arguments.

gHas2' :: Element s => Key s v -> Greskell v -> Walk Filter s s Source #

Monomorphic verson of gHas2.

gHas2P Source #

Arguments

:: (WalkType c, Element s)
=> Key s v	property key
-> Greskell (P v)	predicate on the property value
-> Walk c s s

.has step with two arguments and P type.

gHas2P' :: Element s => Key s v -> Greskell (P v) -> Walk Filter s s Source #

Monomorphic version of gHas2P.

gHasLabel :: (Element s, WalkType c) => Greskell Text -> Walk c s s Source #

.hasLabel step.

gHasLabel' :: Element s => Greskell Text -> Walk Filter s s Source #

Monomorphic version of gHasLabel.

gHasLabelP Source #

Arguments

:: (Element s, WalkType c)
=> Greskell (P Text)	predicate on Element label.
-> Walk c s s

.hasLabel step with P type. Supported since TinkerPop 3.2.7.

gHasLabelP' :: Element s => Greskell (P Text) -> Walk Filter s s Source #

Monomorphic version of gHasLabelP.

gHasId :: (Element s, WalkType c) => Greskell (ElementID s) -> Walk c s s Source #

.hasId step.

gHasId' :: Element s => Greskell (ElementID s) -> Walk Filter s s Source #

Monomorphic version of gHasId.

gHasIdP :: (Element s, WalkType c) => Greskell (P (ElementID s)) -> Walk c s s Source #

.hasId step with P type. Supported since TinkerPop 3.2.7.

gHasIdP' :: Element s => Greskell (P (ElementID s)) -> Walk Filter s s Source #

Monomorphic version of gHasIdP.

gHasKey :: (Element (p v), Property p, WalkType c) => Greskell Text -> Walk c (p v) (p v) Source #

.hasKey step. The input type should be a VertexProperty.

gHasKey' :: (Element (p v), Property p) => Greskell Text -> Walk Filter (p v) (p v) Source #

Monomorphic version of gHasKey.

gHasKeyP Source #

Arguments

:: (Element (p v), Property p, WalkType c)
=> Greskell (P Text)	predicate on the VertexProperty's key.
-> Walk c (p v) (p v)

.hasKey step with P type. Supported since TinkerPop 3.2.7.

gHasKeyP' :: (Element (p v), Property p) => Greskell (P Text) -> Walk Filter (p v) (p v) Source #

Monomorphic version of gHasKeyP.

gHasValue :: (Element (p v), Property p, WalkType c) => Greskell v -> Walk c (p v) (p v) Source #

.hasValue step. The input type should be a VertexProperty.

gHasValue' :: (Element (p v), Property p) => Greskell v -> Walk Filter (p v) (p v) Source #

Monomorphic version of gHasValue.

gHasValueP Source #

Arguments

:: (Element (p v), Property p, WalkType c)
=> Greskell (P v)	predicate on the VertexProperty's value
-> Walk c (p v) (p v)

.hasValue step with P type. Supported since TinkerPop 3.2.7.

gHasValueP' :: (Element (p v), Property p) => Greskell (P v) -> Walk Filter (p v) (p v) Source #

Monomorphic version of gHasValueP.

gAnd :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => [g c s e] -> Walk p s s Source #

.and step.

gOr :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => [g c s e] -> Walk p s s Source #

.or step.

gNot :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => g c s e -> Walk p s s Source #

.not step.

gRange Source #

Arguments

:: Greskell Int	min
-> Greskell Int	max
-> Walk Transform s s

.range step. This step is not a Filter, because the filtering decision by this step is based on position of each element, not the element itself. This violates Filter law.

gLimit :: Greskell Int -> Walk Transform s s Source #

.limit step.

Since: 0.2.1.0

gTail :: Greskell Int -> Walk Transform s s Source #

.tail step.

Since: 0.2.1.0

gSkip :: Greskell Int -> Walk Transform s s Source #

.skip step.

Since: 0.2.1.0

gRepeat Source #

Arguments

:: (ToGTraversal g, WalkType c)
=> Maybe RepeatLabel	Label for the loop.
-> Maybe (RepeatPos, RepeatUntil c s)	`.until` or `.times` modulator. You can use `gTimes`, `gUntilHead`, `gUntilTail` to make this argument.
-> Maybe (RepeatPos, RepeatEmit c s)	`.emit` modulator. You can use `gEmitHead`, `gEmitTail`, `gEmitHeadT`, `gEmitTailT` to make this argument.
-> g c s s	Repeated traversal
-> Walk c s s

.repeat step.

Since: 1.0.1.0

gTimes Source #

Arguments

:: Greskell Int	Repeat count. If it's less than or equal to 0, the repeated traversal is never executed.
-> Maybe (RepeatPos, RepeatUntil c s)

.times modulator before the .repeat step. It always returns Just.

Since: 1.0.1.0

gUntilHead :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatUntil c s) Source #

.until modulator before the .repeat step. It always returns Just.

Since: 1.0.1.0

gUntilTail :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatUntil c s) Source #

.until modulator after the .repeat step. It always returns Just.

Since: 1.0.1.0

gEmitHead :: Maybe (RepeatPos, RepeatEmit c s) Source #

.emit modulator without argument before the .repeat step. It always returns Just.

Since: 1.0.1.0

gEmitTail :: Maybe (RepeatPos, RepeatEmit c s) Source #

.emit modulator without argument after the .repeat step. It always returns Just.

Since: 1.0.1.0

gEmitHeadT :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatEmit c s) Source #

.emit modulator with a sub-traversal argument before the .repeat step. It always returns Just.

Since: 1.0.1.0

gEmitTailT :: (ToGTraversal g, WalkType c, WalkType cc, Split cc c) => g cc s e -> Maybe (RepeatPos, RepeatEmit c s) Source #

.emit modulator with a sub-traversal argument after the .repeat step. It always returns Just.

Since: 1.0.1.0

gLoops :: Maybe RepeatLabel -> Walk Transform s Int Source #

.loops step.

Since: 1.0.1.0

gLocal :: (ToGTraversal g, WalkType c) => g c s e -> Walk c s e Source #

.local step.

Since: 1.0.1.0

gUnion :: (ToGTraversal g, WalkType c) => [g c s e] -> Walk c s e Source #

.union step.

Since: 1.0.1.0

gCoalesce :: (ToGTraversal g, Split cc c, Lift Transform c, WalkType c, WalkType cc) => [g cc s e] -> Walk c s e Source #

.coalesce step.

Like gFlatMap, gCoalesce always modifies path history.

Since: 1.1.0.0

gChoose3 Source #

Arguments

:: (ToGTraversal g, Split cc c, WalkType cc, WalkType c)
=> g cc s ep	the predicate traversal.
-> g c s e	The traversal executed if the predicate traversal outputs something.
-> g c s e	The traversal executed if the predicate traversal outputs nothing.
-> Walk c s e

.choose step with if-then-else style.

Since: 1.0.1.0

gBarrier Source #

Arguments

:: WalkType c
=> Maybe (Greskell Int)	Max number of traversers kept at this barrier.
-> Walk c s s

.barrier step.

Since: 1.0.1.0

gDedup Source #

Arguments

:: Maybe (ByProjection s e)	`.by` modulator. If specified, the result of type `e` is used as the criterion of deduplication.
-> Walk Transform s s

.dedup step without argument.

.dedup step is Transform because the filtering decision depends on the sequence (order) of input elements.

Since: 1.0.1.0

gDedupN :: AsLabel a -> [AsLabel a] -> Maybe (ByProjection a e) -> Walk Transform s s Source #

.dedup step with at least one argument. The tuple specified by the AsLabels is used as the criterion of deduplication.

Since: 1.0.1.0

gBy :: (ProjectionLike p, ToGreskell p) => p -> ByProjection (ProjectionLikeStart p) (ProjectionLikeEnd p) Source #

.by step with 1 argument, used for projection.

gBy1 :: (ProjectionLike p, ToGreskell p) => p -> ByComparator (ProjectionLikeStart p) Source #

.by step with 1 argument, used for comparison.

gBy2 :: (ProjectionLike p, ToGreskell p, Comparator comp, ProjectionLikeEnd p ~ CompareArg comp) => p -> Greskell comp -> ByComparator (ProjectionLikeStart p) Source #

.by step with 2 arguments, used for comparison.

gOrder Source #

Arguments

:: [ByComparator s]	following `.by` steps.
-> Walk Transform s s

.order step.

ByComparator is an IsString, meaning projection by the given key.

gByL :: (ProjectionLike p, ToGreskell p) => AsLabel (ProjectionLikeEnd p) -> p -> LabeledByProjection (ProjectionLikeStart p) Source #

.by step associated with an AsLabel.

Since: 1.0.0.0

gFlatMap :: (Lift Transform c, Split cc c, ToGTraversal g, WalkType c, WalkType cc) => g cc s e -> Walk c s e Source #

.flatMap step.

.flatMap step is at least as powerful as Transform, even if the child walk is Filter type. This is because .flatMap step always modifies the path of the Traverser.

Since: 1.1.0.0

gFlatMap' :: ToGTraversal g => g Transform s e -> Walk Transform s e Source #

Monomorphic version of gFlatMap.

Since: 1.1.0.0

gV :: Vertex v => [Greskell (ElementID v)] -> Walk Transform s v Source #

.V step.

For each input item, .V step emits vertices selected by the argument (or all vertices if the empty list is passed.)

Since: 0.2.0.0

gV' :: [Greskell (ElementID AVertex)] -> Walk Transform s AVertex Source #

Monomorphic version of gV.

Since: 0.2.0.0

gConstant :: Greskell a -> Walk Transform s a Source #

.constant step.

Since: 1.0.1.0

gUnfold :: AsIterator a => Walk Transform a (IteratorItem a) Source #

.unfold step.

Note that we use AsIterator here because basically the .unfold step does the same thing as IteratorUtils.asIterator function in Tinkerpop. However, Tinkerpop's implementation of .unfold step doesn't necessarily use asIterator, so there may be some corner cases where asIterator and .unfold step behave differently.

Since: 1.0.1.0

gAs :: AsLabel a -> Walk Transform a a Source #

.as step.

.as step is Transform because it adds the label to the traverser.

Since: 0.2.2.0

gValues Source #

Arguments

:: Element s
=> [Key s e]	property keys
-> Walk Transform s e

.values step.

gProperties :: (Element s, Property p, ElementProperty s ~ p) => [Key s v] -> Walk Transform s (p v) Source #

.properties step.

gId :: Element s => Walk Transform s (ElementID s) Source #

.id step.

Since: 0.2.1.0

gLabel :: Element s => Walk Transform s Text Source #

.label step.

Since: 0.2.1.0

gValueMap :: Element s => Keys s -> Walk Transform s (PMap (ElementPropertyContainer s) GValue) Source #

.valueMap step.

Since: 1.0.0.0

gElementMap :: Element s => Keys s -> Walk Transform s (PMap Single GValue) Source #

.elementMap step.

Since: 2.0.1.0

gSelect1 :: AsLabel a -> Walk Transform s a Source #

.select step with one argument.

Since: 0.2.2.0

gSelectN :: AsLabel a -> AsLabel b -> [AsLabel c] -> Walk Transform s (SelectedMap GValue) Source #

.select step with more than one arguments.

Since: 0.2.2.0

gSelectBy1 :: AsLabel a -> ByProjection a b -> Walk Transform s b Source #

.select step with one argument followed by .by step.

Since: 0.2.2.0

gSelectByN :: AsLabel a -> AsLabel a -> [AsLabel a] -> ByProjection a b -> Walk Transform s (SelectedMap b) Source #

.select step with more than one arguments followed by .by step.

Since: 0.2.2.0

gProject :: LabeledByProjection s -> [LabeledByProjection s] -> Walk Transform s (PMap Single GValue) Source #

.project step.

Since: 1.0.0.0

gPath :: Walk Transform s (Path GValue) Source #

.path step without modulation.

Since: 1.1.0.0

gPathBy :: ByProjection a b -> [ByProjection a b] -> Walk Transform s (Path b) Source #

.path step with one or more .by modulations.

Since: 1.1.0.0

gFold :: Walk Transform a [a] Source #

.fold step.

gCount :: Walk Transform a Int Source #

.count step.

gOut Source #

Arguments

:: (Vertex v1, Vertex v2)
=> [Greskell Text]	edge labels
-> Walk Transform v1 v2

.out step

gOut' Source #

Arguments

:: Vertex v
=> [Greskell Text]	edge labels
-> Walk Transform v AVertex

Monomorphic version of gOut.

gOutE Source #

Arguments

:: (Vertex v, Edge e)
=> [Greskell Text]	edge labels
-> Walk Transform v e

.outE step

gOutE' :: Vertex v => [Greskell Text] -> Walk Transform v AEdge Source #

Monomorphic version of gOutE.

gOutV :: (Edge e, Vertex v) => Walk Transform e v Source #

.outV step.

Since: 0.2.2.0

gOutV' :: Edge e => Walk Transform e AVertex Source #

Monomorphic version of gOutV.

Since: 0.2.2.0

gIn Source #

Arguments

:: (Vertex v1, Vertex v2)
=> [Greskell Text]	edge labels
-> Walk Transform v1 v2

.in step

gIn' :: Vertex v => [Greskell Text] -> Walk Transform v AVertex Source #

Monomorphic version of gIn.

gInE Source #

Arguments

:: (Vertex v, Edge e)
=> [Greskell Text]	edge labels
-> Walk Transform v e

.inE step.

gInE' Source #

Arguments

:: Vertex v
=> [Greskell Text]	edge labels
-> Walk Transform v AEdge

Monomorphic version of gInE.

gInV :: (Edge e, Vertex v) => Walk Transform e v Source #

.inV step.

Since: 0.2.2.0

gInV' :: Edge e => Walk Transform e AVertex Source #

Monomorphic version of gInV.

Since: 0.2.2.0

gSideEffect :: (ToGTraversal g, WalkType c, WalkType p, Split c p) => g c s e -> Walk p s s Source #

.sideEffect step that takes a traversal.

gSideEffect' :: (ToGTraversal g, WalkType c, Split c SideEffect) => g c s e -> Walk SideEffect s s Source #

Monomorphic version of gSideEffect. The result walk is always SideEffect type.

gAddV :: Vertex v => Greskell Text -> Walk SideEffect a v Source #

.addV step with a label.

gAddV' :: Greskell Text -> Walk SideEffect a AVertex Source #

Monomorphic version of gAddV.

gDrop :: Element e => Walk SideEffect e e Source #

.drop step on Element.

gDropP :: Property p => Walk SideEffect (p a) (p a) Source #

.drop step on Property.

gProperty Source #

Arguments

:: Element e
=> Key e v	key of the property
-> Greskell v	value of the property
-> Walk SideEffect e e

Simple .property step. It adds a value to the property.

Since: 0.2.0.0

gPropertyV Source #

Arguments

:: (Vertex e, vp ~ ElementProperty e, Property vp, Element (vp v))
=> Maybe (Greskell Cardinality)	optional cardinality of the vertex property.
-> Key e v	key of the vertex property
-> Greskell v	value of the vertex property
-> [KeyValue (vp v)]	optional meta-properties for the vertex property.
-> Walk SideEffect e e

.property step for Vertex.

Since: 0.2.0.0

gFrom :: ToGTraversal g => g Transform s e -> AddAnchor s e Source #

.from step with a traversal.

Since: 0.2.0.0

gTo :: ToGTraversal g => g Transform s e -> AddAnchor s e Source #

.to step with a traversal.

Since: 0.2.0.0

gAddE :: (Vertex vs, Vertex ve, Edge e) => Greskell Text -> AddAnchor vs ve -> Walk SideEffect vs e Source #

.addE step. Supported since TinkerPop 3.1.0.

Since: 0.2.0.0

gAddE' :: Greskell Text -> AddAnchor AVertex AVertex -> Walk SideEffect AVertex AEdge Source #

Monomorphic version of gAddE.

Since: 0.2.0.0

data Order a Source #

org.apache.tinkerpop.gremlin.process.traversal.Order enum.

Instances

Instances details

Comparator (Order a) Source #	`Order a` compares the type `a`.
Instance details Defined in Data.Greskell.Gremlin Associated Types type CompareArg (Order a) Source # Methods cCompare :: Greskell (Order a) -> Greskell (CompareArg (Order a)) -> Greskell (CompareArg (Order a)) -> Greskell Int Source # cReversed :: Greskell (Order a) -> Greskell (Order a) Source # cThenComparing :: Greskell (Order a) -> Greskell (Order a) -> Greskell (Order a) Source #
GraphSONTyped (Order a) Source #
Instance details Defined in Data.Greskell.Gremlin Methods gsonTypeFor :: Order a -> Text #
type CompareArg (Order a) Source #
Instance details Defined in Data.Greskell.Gremlin type CompareArg (Order a) = a

newtype ComparatorA a Source #

Type for anonymous class of Comparator interface.

Constructors

ComparatorA
Fields unComparatorA :: a -> a -> Int

Instances

Instances details

Comparator (ComparatorA a) Source #
Instance details Defined in Data.Greskell.Gremlin Associated Types type CompareArg (ComparatorA a) Source # Methods cCompare :: Greskell (ComparatorA a) -> Greskell (CompareArg (ComparatorA a)) -> Greskell (CompareArg (ComparatorA a)) -> Greskell Int Source # cReversed :: Greskell (ComparatorA a) -> Greskell (ComparatorA a) Source # cThenComparing :: Greskell (ComparatorA a) -> Greskell (ComparatorA a) -> Greskell (ComparatorA a) Source #
type CompareArg (ComparatorA a) Source #
Instance details Defined in Data.Greskell.Gremlin type CompareArg (ComparatorA a) = a

class Comparator c where Source #

java.util.Comparator interface.

Comparator compares two data of type CompareArg c.

Minimal complete definition

Nothing

Associated Types

type CompareArg c Source #

Methods

cCompare :: Greskell c -> Greskell (CompareArg c) -> Greskell (CompareArg c) -> Greskell Int Source #

.compare method.

cReversed :: Greskell c -> Greskell c Source #

.reversed method.

cThenComparing :: Greskell c -> Greskell c -> Greskell c Source #

.thenComparing method.

Instances

Instances details

Comparator (ComparatorA a) Source #
Instance details Defined in Data.Greskell.Gremlin Associated Types type CompareArg (ComparatorA a) Source # Methods cCompare :: Greskell (ComparatorA a) -> Greskell (CompareArg (ComparatorA a)) -> Greskell (CompareArg (ComparatorA a)) -> Greskell Int Source # cReversed :: Greskell (ComparatorA a) -> Greskell (ComparatorA a) Source # cThenComparing :: Greskell (ComparatorA a) -> Greskell (ComparatorA a) -> Greskell (ComparatorA a) Source #
Comparator (Order a) Source #	`Order a` compares the type `a`.
Instance details Defined in Data.Greskell.Gremlin Associated Types type CompareArg (Order a) Source # Methods cCompare :: Greskell (Order a) -> Greskell (CompareArg (Order a)) -> Greskell (CompareArg (Order a)) -> Greskell Int Source # cReversed :: Greskell (Order a) -> Greskell (Order a) Source # cThenComparing :: Greskell (Order a) -> Greskell (Order a) -> Greskell (Order a) Source #

class ToGreskell (PParameter p) => PLike p Source #

Type that is compatible with P. You can construct a value of type Greskell p using values of PParameter p.

Note that the type of constuctor arguments (i.e. GreskellReturn (PParameter p)) should implement Java's Comparable interface. This is true for most types, so greskell doesn't have any explicit constraint about it.

Since: 1.2.0.0

Associated Types

type PParameter p Source #

Instances

Instances details

PLike (LabeledP a) Source #	You can construct `Greskell (LabeledP a)` from `AsLabel a`.
Instance details Defined in Data.Greskell.AsLabel Associated Types type PParameter (LabeledP a) Source #
PLike (P a) Source #	You can construct `Greskell (P a)` from `Greskell a`.
Instance details Defined in Data.Greskell.Gremlin Associated Types type PParameter (P a) Source #

data P a Source #

org.apache.tinkerpop.gremlin.process.traversal.P class.

P a keeps data of type a and compares it with data of type a given as the Predicate argument.

Instances

Instances details

PLike (P a) Source #	You can construct `Greskell (P a)` from `Greskell a`.
Instance details Defined in Data.Greskell.Gremlin Associated Types type PParameter (P a) Source #
Predicate (P a) Source #
Instance details Defined in Data.Greskell.Gremlin Associated Types type PredicateArg (P a) Source # Methods pAnd :: Greskell (P a) -> Greskell (P a) -> Greskell (P a) Source # pOr :: Greskell (P a) -> Greskell (P a) -> Greskell (P a) Source # pTest :: Greskell (P a) -> Greskell (PredicateArg (P a)) -> Greskell Bool Source # pNegate :: Greskell (P a) -> Greskell (P a) Source #
GraphSONTyped (P a) Source #
Instance details Defined in Data.Greskell.Gremlin Methods gsonTypeFor :: P a -> Text #
type PParameter (P a) Source #
Instance details Defined in Data.Greskell.Gremlin type PParameter (P a) = Greskell a
type PredicateArg (P a) Source #
Instance details Defined in Data.Greskell.Gremlin type PredicateArg (P a) = a

newtype PredicateA a Source #

Type for anonymous class of Predicate interface.

Constructors

PredicateA
Fields unPredicateA :: a -> Bool

Instances

Instances details

Predicate (PredicateA a) Source #
Instance details Defined in Data.Greskell.Gremlin Associated Types type PredicateArg (PredicateA a) Source # Methods pAnd :: Greskell (PredicateA a) -> Greskell (PredicateA a) -> Greskell (PredicateA a) Source # pOr :: Greskell (PredicateA a) -> Greskell (PredicateA a) -> Greskell (PredicateA a) Source # pTest :: Greskell (PredicateA a) -> Greskell (PredicateArg (PredicateA a)) -> Greskell Bool Source # pNegate :: Greskell (PredicateA a) -> Greskell (PredicateA a) Source #
type PredicateArg (PredicateA a) Source #
Instance details Defined in Data.Greskell.Gremlin type PredicateArg (PredicateA a) = a

class Predicate p where Source #

java.util.function.Predicate interface.

A Predicate p is a function that takes PredicateArg p and returns Bool.

Minimal complete definition

Nothing

Associated Types

type PredicateArg p Source #

Methods

pAnd :: Greskell p -> Greskell p -> Greskell p Source #

.and method.

pOr :: Greskell p -> Greskell p -> Greskell p Source #

.or method.

pTest :: Greskell p -> Greskell (PredicateArg p) -> Greskell Bool Source #

.test method.

pNegate :: Greskell p -> Greskell p Source #

.nagate method.

Instances

Instances details

Predicate (P a) Source #
Instance details Defined in Data.Greskell.Gremlin Associated Types type PredicateArg (P a) Source # Methods pAnd :: Greskell (P a) -> Greskell (P a) -> Greskell (P a) Source # pOr :: Greskell (P a) -> Greskell (P a) -> Greskell (P a) Source # pTest :: Greskell (P a) -> Greskell (PredicateArg (P a)) -> Greskell Bool Source # pNegate :: Greskell (P a) -> Greskell (P a) Source #
Predicate (PredicateA a) Source #
Instance details Defined in Data.Greskell.Gremlin Associated Types type PredicateArg (PredicateA a) Source # Methods pAnd :: Greskell (PredicateA a) -> Greskell (PredicateA a) -> Greskell (PredicateA a) Source # pOr :: Greskell (PredicateA a) -> Greskell (PredicateA a) -> Greskell (PredicateA a) Source # pTest :: Greskell (PredicateA a) -> Greskell (PredicateArg (PredicateA a)) -> Greskell Bool Source # pNegate :: Greskell (PredicateA a) -> Greskell (PredicateA a) Source #

pNot :: PLike p => Greskell p -> Greskell p Source #

P.not static method.

pEq :: PLike p => PParameter p -> Greskell p Source #

P.eq static method.

pNeq :: PLike p => PParameter p -> Greskell p Source #

P.neq static method.

pLt :: PLike p => PParameter p -> Greskell p Source #

P.lt static method.

pLte :: PLike p => PParameter p -> Greskell p Source #

P.lte static method.

pGt :: PLike p => PParameter p -> Greskell p Source #

P.gt static method.

pGte :: PLike p => PParameter p -> Greskell p Source #

P.gte static method.

pInside :: PLike p => PParameter p -> PParameter p -> Greskell p Source #

P.inside static method.

pOutside :: PLike p => PParameter p -> PParameter p -> Greskell p Source #

P.outside static method.

pBetween :: PLike p => PParameter p -> PParameter p -> Greskell p Source #

P.between static method.

pWithin :: PLike p => [PParameter p] -> Greskell p Source #

P.within static method.

pWithout :: PLike p => [PParameter p] -> Greskell p Source #

P.without static method.

oDesc :: Greskell (Order a) Source #

desc order.

Since: 2.0.2.0

oAsc :: Greskell (Order a) Source #

asc order.

Since: 2.0.2.0

oDecr :: Greskell (Order a) Source #

decr order.

Note that decr was removed in TinkerPop 3.5.0. Use oDesc instead.

oIncr :: Greskell (Order a) Source #

incr order.

Note that incr was removed in TinkerPop 3.5.0. Use oAsc instead.

oShuffle :: Greskell (Order a) Source #

shuffle order.

data PathEntry a Source #

An entry in a Path.

Since: 1.1.0.0

Constructors

PathEntry
Fields peLabels :: HashSet (AsLabel a) peObject :: a

Instances

Instances details

Foldable PathEntry Source #
Instance details Defined in Data.Greskell.Graph Methods fold :: Monoid m => PathEntry m -> m # foldMap :: Monoid m => (a -> m) -> PathEntry a -> m # foldMap' :: Monoid m => (a -> m) -> PathEntry a -> m # foldr :: (a -> b -> b) -> b -> PathEntry a -> b # foldr' :: (a -> b -> b) -> b -> PathEntry a -> b # foldl :: (b -> a -> b) -> b -> PathEntry a -> b # foldl' :: (b -> a -> b) -> b -> PathEntry a -> b # foldr1 :: (a -> a -> a) -> PathEntry a -> a # foldl1 :: (a -> a -> a) -> PathEntry a -> a # toList :: PathEntry a -> [a] # null :: PathEntry a -> Bool # length :: PathEntry a -> Int # elem :: Eq a => a -> PathEntry a -> Bool # maximum :: Ord a => PathEntry a -> a # minimum :: Ord a => PathEntry a -> a # sum :: Num a => PathEntry a -> a # product :: Num a => PathEntry a -> a #
Traversable PathEntry Source #
Instance details Defined in Data.Greskell.Graph Methods traverse :: Applicative f => (a -> f b) -> PathEntry a -> f (PathEntry b) # sequenceA :: Applicative f => PathEntry (f a) -> f (PathEntry a) # mapM :: Monad m => (a -> m b) -> PathEntry a -> m (PathEntry b) # sequence :: Monad m => PathEntry (m a) -> m (PathEntry a) #
Functor PathEntry Source #
Instance details Defined in Data.Greskell.Graph Methods fmap :: (a -> b) -> PathEntry a -> PathEntry b # (<$) :: a -> PathEntry b -> PathEntry a #
Show a => Show (PathEntry a) Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> PathEntry a -> ShowS # show :: PathEntry a -> String # showList :: [PathEntry a] -> ShowS #
Eq a => Eq (PathEntry a) Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: PathEntry a -> PathEntry a -> Bool # (/=) :: PathEntry a -> PathEntry a -> Bool #
Ord a => Ord (PathEntry a) Source #
Instance details Defined in Data.Greskell.Graph Methods compare :: PathEntry a -> PathEntry a -> Ordering # (<) :: PathEntry a -> PathEntry a -> Bool # (<=) :: PathEntry a -> PathEntry a -> Bool # (>) :: PathEntry a -> PathEntry a -> Bool # (>=) :: PathEntry a -> PathEntry a -> Bool # max :: PathEntry a -> PathEntry a -> PathEntry a # min :: PathEntry a -> PathEntry a -> PathEntry a #

newtype Path a Source #

org.apache.tinkerpop.gremlin.process.traversal.Path interface.

Since: 1.1.0.0

Constructors

Path
Fields unPath :: [PathEntry a]

Instances

Instances details

Foldable Path Source #
Instance details Defined in Data.Greskell.Graph Methods fold :: Monoid m => Path m -> m # foldMap :: Monoid m => (a -> m) -> Path a -> m # foldMap' :: Monoid m => (a -> m) -> Path a -> m # foldr :: (a -> b -> b) -> b -> Path a -> b # foldr' :: (a -> b -> b) -> b -> Path a -> b # foldl :: (b -> a -> b) -> b -> Path a -> b # foldl' :: (b -> a -> b) -> b -> Path a -> b # foldr1 :: (a -> a -> a) -> Path a -> a # foldl1 :: (a -> a -> a) -> Path a -> a # toList :: Path a -> [a] # null :: Path a -> Bool # length :: Path a -> Int # elem :: Eq a => a -> Path a -> Bool # maximum :: Ord a => Path a -> a # minimum :: Ord a => Path a -> a # sum :: Num a => Path a -> a # product :: Num a => Path a -> a #
Traversable Path Source #
Instance details Defined in Data.Greskell.Graph Methods traverse :: Applicative f => (a -> f b) -> Path a -> f (Path b) # sequenceA :: Applicative f => Path (f a) -> f (Path a) # mapM :: Monad m => (a -> m b) -> Path a -> m (Path b) # sequence :: Monad m => Path (m a) -> m (Path a) #
Functor Path Source #
Instance details Defined in Data.Greskell.Graph Methods fmap :: (a -> b) -> Path a -> Path b # (<$) :: a -> Path b -> Path a #
FromGraphSON a => FromJSON (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods parseJSON :: Value -> Parser (Path a) # parseJSONList :: Value -> Parser [Path a] #
Monoid (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods mempty :: Path a # mappend :: Path a -> Path a -> Path a # mconcat :: [Path a] -> Path a #
Semigroup (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods (<>) :: Path a -> Path a -> Path a # sconcat :: NonEmpty (Path a) -> Path a # stimes :: Integral b => b -> Path a -> Path a #
Show a => Show (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> Path a -> ShowS # show :: Path a -> String # showList :: [Path a] -> ShowS #
Eq a => Eq (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: Path a -> Path a -> Bool # (/=) :: Path a -> Path a -> Bool #
Ord a => Ord (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods compare :: Path a -> Path a -> Ordering # (<) :: Path a -> Path a -> Bool # (<=) :: Path a -> Path a -> Bool # (>) :: Path a -> Path a -> Bool # (>=) :: Path a -> Path a -> Bool # max :: Path a -> Path a -> Path a # min :: Path a -> Path a -> Path a #
AsIterator (Path a) Source #	`Path` is an `Iterable` that emits its objects of type `a`.
Instance details Defined in Data.Greskell.Graph Associated Types type IteratorItem (Path a) #
FromGraphSON a => FromGraphSON (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (Path a) #
GraphSONTyped (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: Path a -> Text #
type IteratorItem (Path a) Source #
Instance details Defined in Data.Greskell.Graph type IteratorItem (Path a) = a

data AVertexProperty v Source #

General vertex property type you can use for VertexProperty.

If you are not sure about the type v, just use GValue.

Constructors

AVertexProperty
Fields avpId :: ElementID (AVertexProperty v) ID of this vertex property. avpLabel :: Text Label and key of this vertex property. avpValue :: v Value of this vertex property.

Instances

Instances details

Foldable AVertexProperty Source #
Instance details Defined in Data.Greskell.Graph Methods fold :: Monoid m => AVertexProperty m -> m # foldMap :: Monoid m => (a -> m) -> AVertexProperty a -> m # foldMap' :: Monoid m => (a -> m) -> AVertexProperty a -> m # foldr :: (a -> b -> b) -> b -> AVertexProperty a -> b # foldr' :: (a -> b -> b) -> b -> AVertexProperty a -> b # foldl :: (b -> a -> b) -> b -> AVertexProperty a -> b # foldl' :: (b -> a -> b) -> b -> AVertexProperty a -> b # foldr1 :: (a -> a -> a) -> AVertexProperty a -> a # foldl1 :: (a -> a -> a) -> AVertexProperty a -> a # toList :: AVertexProperty a -> [a] # null :: AVertexProperty a -> Bool # length :: AVertexProperty a -> Int # elem :: Eq a => a -> AVertexProperty a -> Bool # maximum :: Ord a => AVertexProperty a -> a # minimum :: Ord a => AVertexProperty a -> a # sum :: Num a => AVertexProperty a -> a # product :: Num a => AVertexProperty a -> a #
Traversable AVertexProperty Source #	Traverse the property value.
Instance details Defined in Data.Greskell.Graph Methods traverse :: Applicative f => (a -> f b) -> AVertexProperty a -> f (AVertexProperty b) # sequenceA :: Applicative f => AVertexProperty (f a) -> f (AVertexProperty a) # mapM :: Monad m => (a -> m b) -> AVertexProperty a -> m (AVertexProperty b) # sequence :: Monad m => AVertexProperty (m a) -> m (AVertexProperty a) #
Functor AVertexProperty Source #	Map the property value.
Instance details Defined in Data.Greskell.Graph Methods fmap :: (a -> b) -> AVertexProperty a -> AVertexProperty b # (<$) :: a -> AVertexProperty b -> AVertexProperty a #
Property AVertexProperty Source #
Instance details Defined in Data.Greskell.Graph Methods propertyKey :: AVertexProperty v -> Text Source # propertyValue :: AVertexProperty v -> v Source #
FromGraphSON v => FromJSON (AVertexProperty v) Source #	In version 0.1.1.0 and before, the constraint was `FromJSON v`. This has changed.
Instance details Defined in Data.Greskell.Graph Methods parseJSON :: Value -> Parser (AVertexProperty v) # parseJSONList :: Value -> Parser [AVertexProperty v] #
Show v => Show (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> AVertexProperty v -> ShowS # show :: AVertexProperty v -> String # showList :: [AVertexProperty v] -> ShowS #
Eq v => Eq (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: AVertexProperty v -> AVertexProperty v -> Bool # (/=) :: AVertexProperty v -> AVertexProperty v -> Bool #
Element (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Associated Types type ElementProperty (AVertexProperty v) :: Type -> Type Source # type ElementPropertyContainer (AVertexProperty v) :: Type -> Type Source #
ElementData (AVertexProperty v) Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Methods elementId :: AVertexProperty v -> ElementID (AVertexProperty v) Source # elementLabel :: AVertexProperty v -> Text Source #
FromGraphSON v => FromGraphSONWithKey (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph.PropertyMap Methods parseGraphSONWithKey :: Text -> GValue -> Parser (AVertexProperty v)
FromGraphSON v => FromGraphSON (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (AVertexProperty v) #
GraphSONTyped (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AVertexProperty v -> Text #
type ElementProperty (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph type ElementProperty (AVertexProperty v) = AProperty
type ElementPropertyContainer (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph type ElementPropertyContainer (AVertexProperty v) = Single

data AProperty v Source #

General simple property type you can use for Property class.

If you are not sure about the type v, just use GValue.

Constructors

AProperty
Fields apKey :: Text apValue :: v

Instances

Instances details

Foldable AProperty Source #
Instance details Defined in Data.Greskell.Graph Methods fold :: Monoid m => AProperty m -> m # foldMap :: Monoid m => (a -> m) -> AProperty a -> m # foldMap' :: Monoid m => (a -> m) -> AProperty a -> m # foldr :: (a -> b -> b) -> b -> AProperty a -> b # foldr' :: (a -> b -> b) -> b -> AProperty a -> b # foldl :: (b -> a -> b) -> b -> AProperty a -> b # foldl' :: (b -> a -> b) -> b -> AProperty a -> b # foldr1 :: (a -> a -> a) -> AProperty a -> a # foldl1 :: (a -> a -> a) -> AProperty a -> a # toList :: AProperty a -> [a] # null :: AProperty a -> Bool # length :: AProperty a -> Int # elem :: Eq a => a -> AProperty a -> Bool # maximum :: Ord a => AProperty a -> a # minimum :: Ord a => AProperty a -> a # sum :: Num a => AProperty a -> a # product :: Num a => AProperty a -> a #
Traversable AProperty Source #
Instance details Defined in Data.Greskell.Graph Methods traverse :: Applicative f => (a -> f b) -> AProperty a -> f (AProperty b) # sequenceA :: Applicative f => AProperty (f a) -> f (AProperty a) # mapM :: Monad m => (a -> m b) -> AProperty a -> m (AProperty b) # sequence :: Monad m => AProperty (m a) -> m (AProperty a) #
Functor AProperty Source #
Instance details Defined in Data.Greskell.Graph Methods fmap :: (a -> b) -> AProperty a -> AProperty b # (<$) :: a -> AProperty b -> AProperty a #
Property AProperty Source #
Instance details Defined in Data.Greskell.Graph Methods propertyKey :: AProperty v -> Text Source # propertyValue :: AProperty v -> v Source #
FromGraphSON v => FromJSON (AProperty v) Source #	Parse Property of GraphSON 1.0. In version 0.1.1.0 and before, the constraint was `FromJSON v`. This has changed.
Instance details Defined in Data.Greskell.Graph Methods parseJSON :: Value -> Parser (AProperty v) # parseJSONList :: Value -> Parser [AProperty v] #
Show v => Show (AProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> AProperty v -> ShowS # show :: AProperty v -> String # showList :: [AProperty v] -> ShowS #
Eq v => Eq (AProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: AProperty v -> AProperty v -> Bool # (/=) :: AProperty v -> AProperty v -> Bool #
Ord v => Ord (AProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods compare :: AProperty v -> AProperty v -> Ordering # (<) :: AProperty v -> AProperty v -> Bool # (<=) :: AProperty v -> AProperty v -> Bool # (>) :: AProperty v -> AProperty v -> Bool # (>=) :: AProperty v -> AProperty v -> Bool # max :: AProperty v -> AProperty v -> AProperty v # min :: AProperty v -> AProperty v -> AProperty v #
FromGraphSON v => FromGraphSONWithKey (AProperty v) Source #
Instance details Defined in Data.Greskell.Graph.PropertyMap Methods parseGraphSONWithKey :: Text -> GValue -> Parser (AProperty v)
FromGraphSON v => FromGraphSON (AProperty v) Source #	Parse Property of GraphSON 1.0.
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (AProperty v) #
GraphSONTyped (AProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AProperty v -> Text #

data AEdge Source #

General edge type you can use for Edge class.

Constructors

AEdge
Fields aeId :: ElementID AEdge ID of this edge. aeLabel :: Text Label of this edge.

Instances

Instances details

FromJSON AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods parseJSON :: Value -> Parser AEdge # parseJSONList :: Value -> Parser [AEdge] #
Show AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> AEdge -> ShowS # show :: AEdge -> String # showList :: [AEdge] -> ShowS #
Eq AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: AEdge -> AEdge -> Bool # (/=) :: AEdge -> AEdge -> Bool #
Edge AEdge Source #
Instance details Defined in Data.Greskell.Graph
Element AEdge Source #
Instance details Defined in Data.Greskell.Graph Associated Types type ElementProperty AEdge :: Type -> Type Source # type ElementPropertyContainer AEdge :: Type -> Type Source #
ElementData AEdge Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Methods elementId :: AEdge -> ElementID AEdge Source # elementLabel :: AEdge -> Text Source #
FromGraphSON AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser AEdge #
GraphSONTyped AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AEdge -> Text #
type ElementProperty AEdge Source #
Instance details Defined in Data.Greskell.Graph type ElementProperty AEdge = AProperty
type ElementPropertyContainer AEdge Source #
Instance details Defined in Data.Greskell.Graph type ElementPropertyContainer AEdge = Single

data AVertex Source #

General vertex type you can use for Vertex class.

Constructors

AVertex
Fields avId :: ElementID AVertex ID of this vertex avLabel :: Text Label of this vertex

Instances

Instances details

FromJSON AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods parseJSON :: Value -> Parser AVertex # parseJSONList :: Value -> Parser [AVertex] #
Show AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> AVertex -> ShowS # show :: AVertex -> String # showList :: [AVertex] -> ShowS #
Eq AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: AVertex -> AVertex -> Bool # (/=) :: AVertex -> AVertex -> Bool #
Element AVertex Source #
Instance details Defined in Data.Greskell.Graph Associated Types type ElementProperty AVertex :: Type -> Type Source # type ElementPropertyContainer AVertex :: Type -> Type Source #
ElementData AVertex Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Methods elementId :: AVertex -> ElementID AVertex Source # elementLabel :: AVertex -> Text Source #
Vertex AVertex Source #
Instance details Defined in Data.Greskell.Graph
FromGraphSON AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser AVertex #
GraphSONTyped AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AVertex -> Text #
type ElementProperty AVertex Source #
Instance details Defined in Data.Greskell.Graph type ElementProperty AVertex = AVertexProperty
type ElementPropertyContainer AVertex Source #
Instance details Defined in Data.Greskell.Graph type ElementPropertyContainer AVertex = Multi

data Keys a where Source #

Heterogeneous list of Keys. It keeps the parent type a, but discards the value type b.

Since: 1.0.0.0

Constructors

KeysNil :: Keys a	Empty `Keys`.
KeysCons :: Key a b -> Keys a -> Keys a	Add a `Key` to `Keys`.

Instances

Instances details

Monoid (Keys a) Source #
Instance details Defined in Data.Greskell.Graph Methods mempty :: Keys a # mappend :: Keys a -> Keys a -> Keys a # mconcat :: [Keys a] -> Keys a #
Semigroup (Keys a) Source #
Instance details Defined in Data.Greskell.Graph Methods (<>) :: Keys a -> Keys a -> Keys a # sconcat :: NonEmpty (Keys a) -> Keys a # stimes :: Integral b => b -> Keys a -> Keys a #

data KeyValue a where Source #

Pair of Key and its value. Mainly used for writing properties into the database.

Type a is the type of Element that keeps the KeyValue pair. It drops the type of the value, so that you can construct a heterogeneous list of key-value pairs for a given Element.

Since: 0.2.0.0

Constructors

KeyValue :: Key a b -> Greskell b -> KeyValue a

Key and value

KeyNoValue :: Key a b -> KeyValue a

Key without value

Since: 1.0.0.0

newtype Key a b Source #

A property key accessing value b in an Element a. In Gremlin, it's just a String type.

Since greskell-1.0.0.0, Key is newtype of Text. Before that, it was newtype of Greskell Text.

Constructors

Key
Fields unKey :: Text

Instances

Instances details

Functor (Key a) Source #	Unsafely convert the value type `b`.
Instance details Defined in Data.Greskell.Graph Methods fmap :: (a0 -> b) -> Key a a0 -> Key a b # (<$) :: a0 -> Key a b -> Key a a0 #
IsString (Key a b) Source #
Instance details Defined in Data.Greskell.Graph Methods fromString :: String -> Key a b #
Show (Key a b) Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> Key a b -> ShowS # show :: Key a b -> String # showList :: [Key a b] -> ShowS #
Eq (Key a b) Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: Key a b -> Key a b -> Bool # (/=) :: Key a b -> Key a b -> Bool #
ProjectionLike (Key s e) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Key s e) Source # type ProjectionLikeEnd (Key s e) Source #
PMapKey (Key a b) Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Associated Types type PMapValue (Key a b) Source # Methods keyText :: Key a b -> Text Source #
ToGreskell (Key a b) Source #	Return Gremlin String literal.
Instance details Defined in Data.Greskell.Graph Associated Types type GreskellReturn (Key a b) # Methods toGreskell :: Key a b -> Greskell (GreskellReturn (Key a b)) #
type ProjectionLikeEnd (Key s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Key s e) = e
type ProjectionLikeStart (Key s e) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Key s e) = s
type PMapValue (Key a b) Source #
Instance details Defined in Data.Greskell.Graph type PMapValue (Key a b) = b
type GreskellReturn (Key a b) Source #
Instance details Defined in Data.Greskell.Graph type GreskellReturn (Key a b) = Text

data Cardinality Source #

org.apache.tinkerpop.gremlin.structure.VertexProperty.Cardinality enum.

Since: 0.2.0.0

data T a b Source #

org.apache.tinkerpop.gremlin.structure.T enum.

T is a token to get data b from an Element a.

Instances

Instances details

ProjectionLike (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal Associated Types type ProjectionLikeStart (Greskell (T s e)) Source # type ProjectionLikeEnd (Greskell (T s e)) Source #
GraphSONTyped (T a b) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: T a b -> Text #
type ProjectionLikeEnd (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeEnd (Greskell (T s e)) = e
type ProjectionLikeStart (Greskell (T s e)) Source #
Instance details Defined in Data.Greskell.GTraversal type ProjectionLikeStart (Greskell (T s e)) = s

class Property p where Source #

org.apache.tinkerpop.gremlin.structure.Property interface in a TinkerPop graph.

Methods

propertyKey :: p v -> Text Source #

Get key of this property.

propertyValue :: p v -> v Source #

Get value of this property.

Instances

Instances details

Property AProperty Source #
Instance details Defined in Data.Greskell.Graph Methods propertyKey :: AProperty v -> Text Source # propertyValue :: AProperty v -> v Source #
Property AVertexProperty Source #
Instance details Defined in Data.Greskell.Graph Methods propertyKey :: AVertexProperty v -> Text Source # propertyValue :: AVertexProperty v -> v Source #

class Element e => Edge e Source #

org.apache.tinkerpop.gremlin.structure.Edge interface in a TinkerPop graph.

Instances

Instances details

Edge AEdge Source #
Instance details Defined in Data.Greskell.Graph

class Element v => Vertex v Source #

org.apache.tinkerpop.gremlin.structure.Vertex interface in a TinkerPop graph.

Instances

Instances details

Vertex AVertex Source #
Instance details Defined in Data.Greskell.Graph

class ElementData e => Element e Source #

org.apache.tinkerpop.gremlin.structure.Element interface in a TinkerPop graph.

Since greskell-1.0.0.0, ElementData is a super-class of Element.

Associated Types

type ElementProperty e :: Type -> Type Source #

Property type of the Element. It should be of Property class.

type ElementPropertyContainer e :: Type -> Type Source #

Container type of the properties of the Element. It should be of NonEmptyLike class.

Since: 1.0.0.0

Instances

Instances details

Element AEdge Source #
Instance details Defined in Data.Greskell.Graph Associated Types type ElementProperty AEdge :: Type -> Type Source # type ElementPropertyContainer AEdge :: Type -> Type Source #
Element AVertex Source #
Instance details Defined in Data.Greskell.Graph Associated Types type ElementProperty AVertex :: Type -> Type Source # type ElementPropertyContainer AVertex :: Type -> Type Source #
Element (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Associated Types type ElementProperty (AVertexProperty v) :: Type -> Type Source # type ElementPropertyContainer (AVertexProperty v) :: Type -> Type Source #

class ElementData e where Source #

Types that keep reference to TinkerPop graph Elements.

Since: 1.0.0.0

Methods

elementId :: e -> ElementID e Source #

ID of this Element.

elementLabel :: e -> Text Source #

Label of this Element.

Instances

Instances details

ElementData AEdge Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Methods elementId :: AEdge -> ElementID AEdge Source # elementLabel :: AEdge -> Text Source #
ElementData AVertex Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Methods elementId :: AVertex -> ElementID AVertex Source # elementLabel :: AVertex -> Text Source #
ElementData (AVertexProperty v) Source #	Since: 1.0.0.0
Instance details Defined in Data.Greskell.Graph Methods elementId :: AVertexProperty v -> ElementID (AVertexProperty v) Source # elementLabel :: AVertexProperty v -> Text Source #

newtype ElementID e Source #

ID of a graph element e (vertex, edge and vertex property).

Although the internal of ElementID is exposed, you should treat it as an opaque value. That's because it depends on graph implementation.

Since: 1.0.0.0

Constructors

ElementID
Fields unElementID :: GValue

Instances

Instances details

Functor ElementID Source #	Unsafely convert the element type.
Instance details Defined in Data.Greskell.Graph Methods fmap :: (a -> b) -> ElementID a -> ElementID b # (<$) :: a -> ElementID b -> ElementID a #
FromJSON (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods parseJSON :: Value -> Parser (ElementID e) # parseJSONList :: Value -> Parser [ElementID e] #
ToJSON (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods toJSON :: ElementID e -> Value # toEncoding :: ElementID e -> Encoding # toJSONList :: [ElementID e] -> Value # toEncodingList :: [ElementID e] -> Encoding #
Generic (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Associated Types type Rep (ElementID e) :: Type -> Type # Methods from :: ElementID e -> Rep (ElementID e) x # to :: Rep (ElementID e) x -> ElementID e #
Show (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods showsPrec :: Int -> ElementID e -> ShowS # show :: ElementID e -> String # showList :: [ElementID e] -> ShowS #
Eq (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods (==) :: ElementID e -> ElementID e -> Bool # (/=) :: ElementID e -> ElementID e -> Bool #
FromGraphSON (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (ElementID e) #
Hashable (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods hashWithSalt :: Int -> ElementID e -> Int # hash :: ElementID e -> Int #
type Rep (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph type Rep (ElementID e) = D1 ('MetaData "ElementID" "Data.Greskell.Graph" "greskell-2.0.2.0-6A5NfXFiowBD9PV5wGc6yO" 'True) (C1 ('MetaCons "ElementID" 'PrefixI 'True) (S1 ('MetaSel ('Just "unElementID") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 GValue)))

unsafeCastElementID :: ElementID a -> ElementID b Source #

Unsafely cast the phantom type of ElementID.

Since: 1.0.0.0

tId :: Element a => Greskell (T a (ElementID a)) Source #

T.id token.

tKey :: (Element (p v), Property p) => Greskell (T (p v) Text) Source #

T.key token.

tLabel :: Element a => Greskell (T a Text) Source #

T.label token.

tValue :: (Element (p v), Property p) => Greskell (T (p v) v) Source #

T.value token.

cList :: Greskell Cardinality Source #

list Cardinality.

Since: 0.2.0.0

cSet :: Greskell Cardinality Source #

set Cardinality.

Since: 0.2.0.0

cSingle :: Greskell Cardinality Source #

single Cardinality.

Since: 0.2.0.0

key :: Text -> Key a b Source #

Create a Key a text.

unsafeCastKey :: Key a1 b1 -> Key a2 b2 Source #

Unsafely cast the type signature of the Key.

Since: 1.0.0.0

(=:) :: Key a b -> Greskell b -> KeyValue a Source #

Constructor operator of KeyValue.

Since: 0.2.0.0

singletonKeys :: Key a b -> Keys a Source #

Keys with a single Key.

Since: 1.0.0.0

toGremlinKeys :: Keys a -> [Text] Source #

Convert Keys to a list of Gremlin scripts.

Since: 2.0.1.0

(-:) :: Key a b -> Keys a -> Keys a infixr 5 Source #

Prepend a Key to Keys.

Since: 1.0.0.0

pathToPMap :: Path a -> PMap Multi a Source #

Convert a Path into PMap.

In the result PMap, the keys are the labels in the Path, and the values are the objects associated with the labels. The values are stored in the same order in the Path. Objects without any label are discarded.

Since: 1.1.0.0

makePathEntry Source #

Arguments

:: [AsLabel a]	labels
-> a	object
-> PathEntry a

Make a PathEntry.

Since: 1.1.0.0

data Parser a #

A JSON parser. N.B. This might not fit your usual understanding of "parser". Instead you might like to think of Parser as a "parse result", i.e. a parser to which the input has already been applied.

Instances

Instances details

MonadFail Parser
Instance details Defined in Data.Aeson.Types.Internal Methods fail :: String -> Parser a #
MonadFix Parser	Since: aeson-2.1.0.0
Instance details Defined in Data.Aeson.Types.Internal Methods mfix :: (a -> Parser a) -> Parser a #
Alternative Parser
Instance details Defined in Data.Aeson.Types.Internal Methods empty :: Parser a # (<\|>) :: Parser a -> Parser a -> Parser a # some :: Parser a -> Parser [a] # many :: Parser a -> Parser [a] #
Applicative Parser
Instance details Defined in Data.Aeson.Types.Internal Methods pure :: a -> Parser a # (<>) :: Parser (a -> b) -> Parser a -> Parser b # liftA2 :: (a -> b -> c) -> Parser a -> Parser b -> Parser c # (>) :: Parser a -> Parser b -> Parser b # (<*) :: Parser a -> Parser b -> Parser a #
Functor Parser
Instance details Defined in Data.Aeson.Types.Internal Methods fmap :: (a -> b) -> Parser a -> Parser b # (<$) :: a -> Parser b -> Parser a #
Monad Parser
Instance details Defined in Data.Aeson.Types.Internal Methods (>>=) :: Parser a -> (a -> Parser b) -> Parser b # (>>) :: Parser a -> Parser b -> Parser b # return :: a -> Parser a #
MonadPlus Parser
Instance details Defined in Data.Aeson.Types.Internal Methods mzero :: Parser a # mplus :: Parser a -> Parser a -> Parser a #
Monoid (Parser a)
Instance details Defined in Data.Aeson.Types.Internal Methods mempty :: Parser a # mappend :: Parser a -> Parser a -> Parser a # mconcat :: [Parser a] -> Parser a #
Semigroup (Parser a)
Instance details Defined in Data.Aeson.Types.Internal Methods (<>) :: Parser a -> Parser a -> Parser a # sconcat :: NonEmpty (Parser a) -> Parser a # stimes :: Integral b => b -> Parser a -> Parser a #

parseJSONViaGValue :: FromGraphSON a => Value -> Parser a #

Implementation of parseJSON based on parseGraphSON. The input Value is first converted to GValue, and it's parsed to the output type.

Since: greskell-core-0.1.2.0

(.:) :: FromGraphSON a => KeyMap GValue -> Key -> Parser a #

Like Aeson's .:, but for FromGraphSON.

Since: greskell-core-1.0.0.0

parseEither :: FromGraphSON a => GValue -> Either String a #

Parse GValue into FromGraphSON.

Since: greskell-core-0.1.2.0

parseUnwrapList :: (IsList a, i ~ Item a, FromGraphSON i) => GValue -> Parser a #

Extract GArray from the given GValue, parse the items in the array, and gather them by fromList.

Useful to implement FromGraphSON instances for IsList types.

Since: greskell-core-0.1.2.0

parseUnwrapAll :: FromJSON a => GValue -> Parser a #

Unwrap the given GValue with unwrapAll, and just parse the result with parseJSON.

Useful to implement FromGraphSON instances for scalar types.

Since: greskell-core-0.1.2.0

class FromGraphSON a where #

Types that can be constructed from GValue. This is analogous to FromJSON class.

Instances of basic types are implemented based on the following rule.

Simple scalar types (e.g. Int and Text): use parseUnwrapAll.
List-like types (e.g. [], Vector and Set): use parseUnwrapList.
Map-like types (e.g. HashMap and Map): parse into GMap first, then unwrap the GMap wrapper. That way, all versions of GraphSON formats are handled properly.
Trivial wrapper types (e.g. Identity): just parse the item inside.
Other types: see the individual instance documentation.

Note that Char does not have FromGraphSON instance. This is intentional. As stated in the document of AsIterator, using Value in greskell is an error in most cases. To prevent you from using Value, Char (and thus Value) don't have FromGraphSON instances.

Since: greskell-core-0.1.2.0

Methods

parseGraphSON :: GValue -> Parser a #

Instances

Instances details

FromGraphSON Key	First convert to `Text`, and convert to `Key`. Since: greskell-core-1.0.0.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Key #
FromGraphSON Value	Call `unwrapAll` to remove all GraphSON wrappers.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Value #
FromGraphSON All	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser All #
FromGraphSON Any	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Any #
FromGraphSON Int16
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Int16 #
FromGraphSON Int32
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Int32 #
FromGraphSON Int64
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Int64 #
FromGraphSON Int8
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Int8 #
FromGraphSON Word16
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Word16 #
FromGraphSON Word32
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Word32 #
FromGraphSON Word64
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Word64 #
FromGraphSON Word8
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Word8 #
FromGraphSON IntSet
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser IntSet #
FromGraphSON AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser AEdge #
FromGraphSON AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser AVertex #
FromGraphSON GValue
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser GValue #
FromGraphSON Scientific
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Scientific #
FromGraphSON Text
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Text #
FromGraphSON Text
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Text #
FromGraphSON UUID
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser UUID #
FromGraphSON Integer
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Integer #
FromGraphSON Natural
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Natural #
FromGraphSON ()	For any input `GValue`, `parseGraphSON` returns `()`. For example, you can use it to ignore data you get from the Gremlin server.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser () #
FromGraphSON Bool
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Bool #
FromGraphSON Double
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Double #
FromGraphSON Float
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Float #
FromGraphSON Int
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Int #
FromGraphSON Word
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser Word #
FromGraphSON v => FromGraphSON (KeyMap v)	First convert to `Map` with `Text` key, and convert to `KeyMap`. Since: greskell-core-1.0.0.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (KeyMap v) #
FromGraphSON a => FromGraphSON (Identity a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Identity a) #
FromGraphSON a => FromGraphSON (First a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (First a) #
FromGraphSON a => FromGraphSON (Last a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Last a) #
FromGraphSON a => FromGraphSON (First a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (First a) #
FromGraphSON a => FromGraphSON (Last a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Last a) #
FromGraphSON a => FromGraphSON (Max a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Max a) #
FromGraphSON a => FromGraphSON (Min a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Min a) #
FromGraphSON a => FromGraphSON (WrappedMonoid a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (WrappedMonoid a) #
FromGraphSON a => FromGraphSON (Dual a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Dual a) #
FromGraphSON a => FromGraphSON (Product a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Product a) #
FromGraphSON a => FromGraphSON (Sum a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Sum a) #
(FromJSON a, Integral a) => FromGraphSON (Ratio a)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Ratio a) #
FromGraphSON v => FromGraphSON (IntMap v)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (IntMap v) #
FromGraphSON a => FromGraphSON (Seq a)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Seq a) #
(FromGraphSON a, Ord a) => FromGraphSON (Set a)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Set a) #
FromGraphSON v => FromGraphSON (AProperty v) Source #	Parse Property of GraphSON 1.0.
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (AProperty v) #
FromGraphSON v => FromGraphSON (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (AVertexProperty v) #
FromGraphSON (ElementID e) Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (ElementID e) #
FromGraphSON a => FromGraphSON (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods parseGraphSON :: GValue -> Parser (Path a) #
FromGraphSON a => FromGraphSON (Multi a) Source #
Instance details Defined in Data.Greskell.PMap Methods parseGraphSON :: GValue -> Parser (Multi a) #
(FromGraphSON a, Eq a, Hashable a) => FromGraphSON (HashSet a)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (HashSet a) #
FromGraphSON a => FromGraphSON (Vector a)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Vector a) #
FromGraphSON a => FromGraphSON (NonEmpty a)	Since: greskell-core-0.1.3.0
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (NonEmpty a) #
FromGraphSON a => FromGraphSON (Maybe a)	Parse `GNull` into `Nothing`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Maybe a) #
FromGraphSON a => FromGraphSON [a]
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser [a] #
(FromGraphSON a, FromGraphSON b) => FromGraphSON (Either a b)	Try `Left`, then `Right`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Either a b) #
(FromGraphSON v, Ord k, FromJSONKey k, FromGraphSON k) => FromGraphSON (Map k v)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (Map k v) #
(Property p, GraphSONTyped (p v), FromGraphSON (p v), FromGraphSONWithKey (p v)) => FromGraphSON (PropertyMapList p v) Source #
Instance details Defined in Data.Greskell.Graph.PropertyMap Methods parseGraphSON :: GValue -> Parser (PropertyMapList p v) #
(Property p, GraphSONTyped (p v), FromGraphSON (p v), FromGraphSONWithKey (p v)) => FromGraphSON (PropertyMapSingle p v) Source #
Instance details Defined in Data.Greskell.Graph.PropertyMap Methods parseGraphSON :: GValue -> Parser (PropertyMapSingle p v) #
FromGraphSON (c v) => FromGraphSON (PMap c v) Source #
Instance details Defined in Data.Greskell.PMap Methods parseGraphSON :: GValue -> Parser (PMap c v) #
(FromGraphSON k, FromGraphSON v, FromJSONKey k) => FromGraphSON (GMapEntry k v)	Use `parseToGMapEntry`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (GMapEntry k v) #
(FromGraphSON v, Eq k, Hashable k, FromJSONKey k, FromGraphSON k) => FromGraphSON (HashMap k v)
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (HashMap k v) #
(FromGraphSON k, FromGraphSON v, IsList (c k v), Item (c k v) ~ (k, v)) => FromGraphSON (FlattenedMap c k v)	Use `parseToFlattenedMap`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (FlattenedMap c k v) #
(FromGraphSON k, FromGraphSON v, IsList (c k v), Item (c k v) ~ (k, v), Traversable (c k), FromJSON (c k GValue)) => FromGraphSON (GMap c k v)	Use `parseToGMap`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (GMap c k v) #

typedGValue' #

Arguments

:: Text	"@type" field.
-> GValueBody
-> GValue

Create a GValue with the given "@type" field.

Since: greskell-core-0.1.2.0

nonTypedGValue :: GValueBody -> GValue #

Create a GValue without "@type" field.

Since: greskell-core-0.1.2.0

data GValue #

An Aeson Value wrapped in GraphSON wrapper type. Basically this type is the Haskell representaiton of a GraphSON-encoded document.

This type is used to parse GraphSON documents. See also FromGraphSON class.

Since: greskell-core-0.1.2.0

Instances

Instances details

FromJSON GValue	Parse `GraphSON` wrappers recursively in `Value`, making it into `GValue`.
Instance details Defined in Data.Greskell.GraphSON.GValue Methods parseJSON :: Value -> Parser GValue # parseJSONList :: Value -> Parser [GValue] #
ToJSON GValue	Reconstruct `Value` from `GValue`. It preserves all GraphSON wrappers.
Instance details Defined in Data.Greskell.GraphSON.GValue Methods toJSON :: GValue -> Value # toEncoding :: GValue -> Encoding # toJSONList :: [GValue] -> Value # toEncodingList :: [GValue] -> Encoding #
Generic GValue
Instance details Defined in Data.Greskell.GraphSON.GValue Associated Types type Rep GValue :: Type -> Type # Methods from :: GValue -> Rep GValue x # to :: Rep GValue x -> GValue #
Show GValue
Instance details Defined in Data.Greskell.GraphSON.GValue Methods showsPrec :: Int -> GValue -> ShowS # show :: GValue -> String # showList :: [GValue] -> ShowS #
Eq GValue
Instance details Defined in Data.Greskell.GraphSON.GValue Methods (==) :: GValue -> GValue -> Bool # (/=) :: GValue -> GValue -> Bool #
FromGraphSON GValue
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser GValue #
Hashable GValue
Instance details Defined in Data.Greskell.GraphSON.GValue Methods hashWithSalt :: Int -> GValue -> Int # hash :: GValue -> Int #
type Rep GValue
Instance details Defined in Data.Greskell.GraphSON.GValue type Rep GValue = D1 ('MetaData "GValue" "Data.Greskell.GraphSON.GValue" "greskell-core-1.0.0.1-31D77Wa70NqBxuO9IRRtlt" 'True) (C1 ('MetaCons "GValue" 'PrefixI 'True) (S1 ('MetaSel ('Just "unGValue") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (GraphSON GValueBody))))

data GValueBody #

GValue without the top-level GraphSON wrapper.

Since: greskell-core-1.0.0.0

Constructors

GObject !(KeyMap GValue)
GArray !(Vector GValue)
GString !Text
GNumber !Scientific
GBool !Bool
GNull

Instances

Instances details

ToJSON GValueBody
Instance details Defined in Data.Greskell.GraphSON.GValue Methods toJSON :: GValueBody -> Value # toEncoding :: GValueBody -> Encoding # toJSONList :: [GValueBody] -> Value # toEncodingList :: [GValueBody] -> Encoding #
Generic GValueBody
Instance details Defined in Data.Greskell.GraphSON.GValue Associated Types type Rep GValueBody :: Type -> Type # Methods from :: GValueBody -> Rep GValueBody x # to :: Rep GValueBody x -> GValueBody #
Show GValueBody
Instance details Defined in Data.Greskell.GraphSON.GValue Methods showsPrec :: Int -> GValueBody -> ShowS # show :: GValueBody -> String # showList :: [GValueBody] -> ShowS #
Eq GValueBody
Instance details Defined in Data.Greskell.GraphSON.GValue Methods (==) :: GValueBody -> GValueBody -> Bool # (/=) :: GValueBody -> GValueBody -> Bool #
Hashable GValueBody
Instance details Defined in Data.Greskell.GraphSON.GValue Methods hashWithSalt :: Int -> GValueBody -> Int # hash :: GValueBody -> Int #
type Rep GValueBody
Instance details Defined in Data.Greskell.GraphSON.GValue type Rep GValueBody = D1 ('MetaData "GValueBody" "Data.Greskell.GraphSON.GValue" "greskell-core-1.0.0.1-31D77Wa70NqBxuO9IRRtlt" 'False) ((C1 ('MetaCons "GObject" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (KeyMap GValue))) :+: (C1 ('MetaCons "GArray" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (Vector GValue))) :+: C1 ('MetaCons "GString" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Text)))) :+: (C1 ('MetaCons "GNumber" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Scientific)) :+: (C1 ('MetaCons "GBool" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Bool)) :+: C1 ('MetaCons "GNull" 'PrefixI 'False) (U1 :: Type -> Type))))

parseTypedGraphSON :: (GraphSONTyped v, FromJSON v) => Value -> Parser (GraphSON v) #

Parse GraphSON v, but it checks gsonType. If gsonType is Nothing or it's not equal to gsonTypeFor, the Parser fails.

typedGraphSON' :: Text -> v -> GraphSON v #

Create a GraphSON with the given type ID.

typedGraphSON :: GraphSONTyped v => v -> GraphSON v #

Create a GraphSON with its type ID.

nonTypedGraphSON :: v -> GraphSON v #

Create a GraphSON without gsonType.

data GraphSON v #

Wrapper for "typed JSON object" introduced in GraphSON version 2. See http://tinkerpop.apache.org/docs/current/dev/io/#graphson

This data type is useful for encoding/decoding GraphSON text.

Note that encoding of the "g:Map" type is inconsistent between GraphSON v1 and v2, v3. To handle the encoding, use Data.Greskell.GMap.

Constructors

GraphSON
Fields gsonType :: Maybe Text Type ID, corresponding to `@type` field. gsonValue :: v Value, correspoding to `@value` field.

Instances

Instances details

Foldable GraphSON
Instance details Defined in Data.Greskell.GraphSON.Core Methods fold :: Monoid m => GraphSON m -> m # foldMap :: Monoid m => (a -> m) -> GraphSON a -> m # foldMap' :: Monoid m => (a -> m) -> GraphSON a -> m # foldr :: (a -> b -> b) -> b -> GraphSON a -> b # foldr' :: (a -> b -> b) -> b -> GraphSON a -> b # foldl :: (b -> a -> b) -> b -> GraphSON a -> b # foldl' :: (b -> a -> b) -> b -> GraphSON a -> b # foldr1 :: (a -> a -> a) -> GraphSON a -> a # foldl1 :: (a -> a -> a) -> GraphSON a -> a # toList :: GraphSON a -> [a] # null :: GraphSON a -> Bool # length :: GraphSON a -> Int # elem :: Eq a => a -> GraphSON a -> Bool # maximum :: Ord a => GraphSON a -> a # minimum :: Ord a => GraphSON a -> a # sum :: Num a => GraphSON a -> a # product :: Num a => GraphSON a -> a #
Traversable GraphSON
Instance details Defined in Data.Greskell.GraphSON.Core Methods traverse :: Applicative f => (a -> f b) -> GraphSON a -> f (GraphSON b) # sequenceA :: Applicative f => GraphSON (f a) -> f (GraphSON a) # mapM :: Monad m => (a -> m b) -> GraphSON a -> m (GraphSON b) # sequence :: Monad m => GraphSON (m a) -> m (GraphSON a) #
Functor GraphSON
Instance details Defined in Data.Greskell.GraphSON.Core Methods fmap :: (a -> b) -> GraphSON a -> GraphSON b # (<$) :: a -> GraphSON b -> GraphSON a #
FromJSON v => FromJSON (GraphSON v)	If the given `Value` is a typed JSON object, `gsonType` field of the result is `Just`. Otherwise, the given `Value` is directly parsed into `gsonValue`, and `gsonType` is `Nothing`.
Instance details Defined in Data.Greskell.GraphSON.Core Methods parseJSON :: Value -> Parser (GraphSON v) # parseJSONList :: Value -> Parser [GraphSON v] #
ToJSON v => ToJSON (GraphSON v)	If `gsonType` is `Just`, the `GraphSON` is encoded as a typed JSON object. If `gsonType` is `Nothing`, the `gsonValue` is directly encoded.
Instance details Defined in Data.Greskell.GraphSON.Core Methods toJSON :: GraphSON v -> Value # toEncoding :: GraphSON v -> Encoding # toJSONList :: [GraphSON v] -> Value # toEncodingList :: [GraphSON v] -> Encoding #
Generic (GraphSON v)
Instance details Defined in Data.Greskell.GraphSON.Core Associated Types type Rep (GraphSON v) :: Type -> Type # Methods from :: GraphSON v -> Rep (GraphSON v) x # to :: Rep (GraphSON v) x -> GraphSON v #
Show v => Show (GraphSON v)
Instance details Defined in Data.Greskell.GraphSON.Core Methods showsPrec :: Int -> GraphSON v -> ShowS # show :: GraphSON v -> String # showList :: [GraphSON v] -> ShowS #
Eq v => Eq (GraphSON v)
Instance details Defined in Data.Greskell.GraphSON.Core Methods (==) :: GraphSON v -> GraphSON v -> Bool # (/=) :: GraphSON v -> GraphSON v -> Bool #
Ord v => Ord (GraphSON v)
Instance details Defined in Data.Greskell.GraphSON.Core Methods compare :: GraphSON v -> GraphSON v -> Ordering # (<) :: GraphSON v -> GraphSON v -> Bool # (<=) :: GraphSON v -> GraphSON v -> Bool # (>) :: GraphSON v -> GraphSON v -> Bool # (>=) :: GraphSON v -> GraphSON v -> Bool # max :: GraphSON v -> GraphSON v -> GraphSON v # min :: GraphSON v -> GraphSON v -> GraphSON v #
Hashable v => Hashable (GraphSON v)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.Core Methods hashWithSalt :: Int -> GraphSON v -> Int # hash :: GraphSON v -> Int #
type Rep (GraphSON v)
Instance details Defined in Data.Greskell.GraphSON.Core type Rep (GraphSON v) = D1 ('MetaData "GraphSON" "Data.Greskell.GraphSON.Core" "greskell-core-1.0.0.1-31D77Wa70NqBxuO9IRRtlt" 'False) (C1 ('MetaCons "GraphSON" 'PrefixI 'True) (S1 ('MetaSel ('Just "gsonType") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "gsonValue") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 v)))

class GraphSONTyped a where #

Types that have an intrinsic type ID for gsonType field.

Methods

gsonTypeFor :: a -> Text #

Type ID for gsonType.

Instances

Instances details

GraphSONTyped Int16
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Int16 -> Text #
GraphSONTyped Int32
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Int32 -> Text #
GraphSONTyped Int64
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Int64 -> Text #
GraphSONTyped Int8	Map to "gx:Byte". Note that Java's Byte is signed.
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Int8 -> Text #
GraphSONTyped IntSet	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: IntSet -> Text #
GraphSONTyped AEdge Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AEdge -> Text #
GraphSONTyped AVertex Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AVertex -> Text #
GraphSONTyped Scientific	Map to "g:Double".
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Scientific -> Text #
GraphSONTyped Char
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Char -> Text #
GraphSONTyped Double
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Double -> Text #
GraphSONTyped Float
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Float -> Text #
GraphSONTyped (IntMap v)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: IntMap v -> Text #
GraphSONTyped (Seq a)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Seq a -> Text #
GraphSONTyped (Set a)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Set a -> Text #
GraphSONTyped (AProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AProperty v -> Text #
GraphSONTyped (AVertexProperty v) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: AVertexProperty v -> Text #
GraphSONTyped (Path a) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: Path a -> Text #
GraphSONTyped (Order a) Source #
Instance details Defined in Data.Greskell.Gremlin Methods gsonTypeFor :: Order a -> Text #
GraphSONTyped (P a) Source #
Instance details Defined in Data.Greskell.Gremlin Methods gsonTypeFor :: P a -> Text #
GraphSONTyped (HashSet a)
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: HashSet a -> Text #
GraphSONTyped (Vector a)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Vector a -> Text #
GraphSONTyped [a]
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: [a] -> Text #
(GraphSONTyped a, GraphSONTyped b) => GraphSONTyped (Either a b)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Either a b -> Text #
GraphSONTyped (Map k v)	Since: greskell-core-0.1.2.0
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: Map k v -> Text #
GraphSONTyped (T a b) Source #
Instance details Defined in Data.Greskell.Graph Methods gsonTypeFor :: T a b -> Text #
GraphSONTyped (PMap c v) Source #
Instance details Defined in Data.Greskell.PMap Methods gsonTypeFor :: PMap c v -> Text #
GraphSONTyped (GMapEntry k v)	Map to "g:Map".
Instance details Defined in Data.Greskell.GMap Methods gsonTypeFor :: GMapEntry k v -> Text #
GraphSONTyped (HashMap k v)
Instance details Defined in Data.Greskell.GraphSON.GraphSONTyped Methods gsonTypeFor :: HashMap k v -> Text #
GraphSONTyped (FlattenedMap c k v)	Map to "g:Map".
Instance details Defined in Data.Greskell.GMap Methods gsonTypeFor :: FlattenedMap c k v -> Text #
GraphSONTyped (GMap c k v)	Map to "g:Map".
Instance details Defined in Data.Greskell.GMap Methods gsonTypeFor :: GMap c k v -> Text #

toList :: forall (c :: Type -> Type -> Type) k v. (IsList (c k v), Item (c k v) ~ (k, v)) => GMap c k v -> [GMapEntry k v] #

Deconstruct GMap into a list of GMapEntrys.

singleton :: forall (c :: Type -> Type -> Type) k v. (IsList (c k v), Item (c k v) ~ (k, v)) => GMapEntry k v -> GMap c k v #

Create GMap that has the single GMapEntry.

unGMapEntry :: GMapEntry k v -> (k, v) #

Get the key-value pair from GMapEntry.

parseToGMapEntry #

Arguments

:: FromJSONKey k
=> (s -> Parser k)	key parser
-> (s -> Parser v)	value parser
-> Either (KeyMap s) (Vector s)	input object or flattened key-values
-> Parser (GMapEntry k v)

General parser for GMapEntry.

unGMap :: GMap c k v -> c k v #

Get the map implementation from GMap.

parseToGMap #

Arguments

:: (IsList (c k v), Item (c k v) ~ (k, v))
=> (s -> Parser k)	key parser
-> (s -> Parser v)	value parser
-> (KeyMap s -> Parser (c k v))	object parser
-> Either (KeyMap s) (Vector s)	input object or flattened key-values.
-> Parser (GMap c k v)

General parser for GMap.

parseToFlattenedMap #

Arguments

:: forall (c :: Type -> Type -> Type) k v s. (IsList (c k v), Item (c k v) ~ (k, v))
=> (s -> Parser k)	key parser
-> (s -> Parser v)	value parser
-> Vector s	input vector of flattened key-values.
-> Parser (FlattenedMap c k v)

General parser for FlattenedMap.

newtype FlattenedMap (c :: Type -> Type -> Type) k v #

JSON encoding of a map as an array of flattened key-value pairs.

ToJSON instance of this type encodes the internal map as an array of keys and values. FromJSON instance of this type parses that flattened map.

type c: container type for a map (e.g. Map and HashMap).
type k: key of the map.
type v: value of the map.

Constructors

FlattenedMap
Fields unFlattenedMap :: c k v

Instances

Instances details

Foldable (c k) => Foldable (FlattenedMap c k)
Instance details Defined in Data.Greskell.GMap Methods fold :: Monoid m => FlattenedMap c k m -> m # foldMap :: Monoid m => (a -> m) -> FlattenedMap c k a -> m # foldMap' :: Monoid m => (a -> m) -> FlattenedMap c k a -> m # foldr :: (a -> b -> b) -> b -> FlattenedMap c k a -> b # foldr' :: (a -> b -> b) -> b -> FlattenedMap c k a -> b # foldl :: (b -> a -> b) -> b -> FlattenedMap c k a -> b # foldl' :: (b -> a -> b) -> b -> FlattenedMap c k a -> b # foldr1 :: (a -> a -> a) -> FlattenedMap c k a -> a # foldl1 :: (a -> a -> a) -> FlattenedMap c k a -> a # toList :: FlattenedMap c k a -> [a] # null :: FlattenedMap c k a -> Bool # length :: FlattenedMap c k a -> Int # elem :: Eq a => a -> FlattenedMap c k a -> Bool # maximum :: Ord a => FlattenedMap c k a -> a # minimum :: Ord a => FlattenedMap c k a -> a # sum :: Num a => FlattenedMap c k a -> a # product :: Num a => FlattenedMap c k a -> a #
Traversable (c k) => Traversable (FlattenedMap c k)
Instance details Defined in Data.Greskell.GMap Methods traverse :: Applicative f => (a -> f b) -> FlattenedMap c k a -> f (FlattenedMap c k b) # sequenceA :: Applicative f => FlattenedMap c k (f a) -> f (FlattenedMap c k a) # mapM :: Monad m => (a -> m b) -> FlattenedMap c k a -> m (FlattenedMap c k b) # sequence :: Monad m => FlattenedMap c k (m a) -> m (FlattenedMap c k a) #
Functor (c k) => Functor (FlattenedMap c k)
Instance details Defined in Data.Greskell.GMap Methods fmap :: (a -> b) -> FlattenedMap c k a -> FlattenedMap c k b # (<$) :: a -> FlattenedMap c k b -> FlattenedMap c k a #
(FromJSON k, FromJSON v, IsList (c k v), Item (c k v) ~ (k, v)) => FromJSON (FlattenedMap c k v)	Use `parseToFlattenedMap`.
Instance details Defined in Data.Greskell.GMap Methods parseJSON :: Value -> Parser (FlattenedMap c k v) # parseJSONList :: Value -> Parser [FlattenedMap c k v] #
(ToJSON k, ToJSON v, IsList (c k v), Item (c k v) ~ (k, v)) => ToJSON (FlattenedMap c k v)
Instance details Defined in Data.Greskell.GMap Methods toJSON :: FlattenedMap c k v -> Value # toEncoding :: FlattenedMap c k v -> Encoding # toJSONList :: [FlattenedMap c k v] -> Value # toEncodingList :: [FlattenedMap c k v] -> Encoding #
Show (c k v) => Show (FlattenedMap c k v)
Instance details Defined in Data.Greskell.GMap Methods showsPrec :: Int -> FlattenedMap c k v -> ShowS # show :: FlattenedMap c k v -> String # showList :: [FlattenedMap c k v] -> ShowS #
Eq (c k v) => Eq (FlattenedMap c k v)
Instance details Defined in Data.Greskell.GMap Methods (==) :: FlattenedMap c k v -> FlattenedMap c k v -> Bool # (/=) :: FlattenedMap c k v -> FlattenedMap c k v -> Bool #
Ord (c k v) => Ord (FlattenedMap c k v)
Instance details Defined in Data.Greskell.GMap Methods compare :: FlattenedMap c k v -> FlattenedMap c k v -> Ordering # (<) :: FlattenedMap c k v -> FlattenedMap c k v -> Bool # (<=) :: FlattenedMap c k v -> FlattenedMap c k v -> Bool # (>) :: FlattenedMap c k v -> FlattenedMap c k v -> Bool # (>=) :: FlattenedMap c k v -> FlattenedMap c k v -> Bool # max :: FlattenedMap c k v -> FlattenedMap c k v -> FlattenedMap c k v # min :: FlattenedMap c k v -> FlattenedMap c k v -> FlattenedMap c k v #
(FromGraphSON k, FromGraphSON v, IsList (c k v), Item (c k v) ~ (k, v)) => FromGraphSON (FlattenedMap c k v)	Use `parseToFlattenedMap`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (FlattenedMap c k v) #
GraphSONTyped (FlattenedMap c k v)	Map to "g:Map".
Instance details Defined in Data.Greskell.GMap Methods gsonTypeFor :: FlattenedMap c k v -> Text #

data GMap (c :: Type -> Type -> Type) k v #

Haskell representation of g:Map type.

GraphSON v1 and v2 encode Java Map type as a JSON Object, while GraphSON v3 encodes it as an array of flattened keys and values (like FlattenedMap.) GMap type handles both encoding schemes.

type c: container type for a map (e.g. Map and HashMap).
type k: key of the map.
type v: value of the map.

Constructors

GMap
Fields gmapFlat :: !Bool If `True`, the map is encoded as an array. If `False`, it's encoded as a JSON Object. gmapValue :: !(c k v) Map implementation.

Instances

Instances details

Foldable (c k) => Foldable (GMap c k)
Instance details Defined in Data.Greskell.GMap Methods fold :: Monoid m => GMap c k m -> m # foldMap :: Monoid m => (a -> m) -> GMap c k a -> m # foldMap' :: Monoid m => (a -> m) -> GMap c k a -> m # foldr :: (a -> b -> b) -> b -> GMap c k a -> b # foldr' :: (a -> b -> b) -> b -> GMap c k a -> b # foldl :: (b -> a -> b) -> b -> GMap c k a -> b # foldl' :: (b -> a -> b) -> b -> GMap c k a -> b # foldr1 :: (a -> a -> a) -> GMap c k a -> a # foldl1 :: (a -> a -> a) -> GMap c k a -> a # toList :: GMap c k a -> [a] # null :: GMap c k a -> Bool # length :: GMap c k a -> Int # elem :: Eq a => a -> GMap c k a -> Bool # maximum :: Ord a => GMap c k a -> a # minimum :: Ord a => GMap c k a -> a # sum :: Num a => GMap c k a -> a # product :: Num a => GMap c k a -> a #
Traversable (c k) => Traversable (GMap c k)
Instance details Defined in Data.Greskell.GMap Methods traverse :: Applicative f => (a -> f b) -> GMap c k a -> f (GMap c k b) # sequenceA :: Applicative f => GMap c k (f a) -> f (GMap c k a) # mapM :: Monad m => (a -> m b) -> GMap c k a -> m (GMap c k b) # sequence :: Monad m => GMap c k (m a) -> m (GMap c k a) #
Functor (c k) => Functor (GMap c k)
Instance details Defined in Data.Greskell.GMap Methods fmap :: (a -> b) -> GMap c k a -> GMap c k b # (<$) :: a -> GMap c k b -> GMap c k a #
(FromJSON k, FromJSON v, IsList (c k v), Item (c k v) ~ (k, v), FromJSON (c k v)) => FromJSON (GMap c k v)	Use `parseToGMap`.
Instance details Defined in Data.Greskell.GMap Methods parseJSON :: Value -> Parser (GMap c k v) # parseJSONList :: Value -> Parser [GMap c k v] #
(ToJSON k, ToJSON v, IsList (c k v), Item (c k v) ~ (k, v), ToJSON (c k v)) => ToJSON (GMap c k v)
Instance details Defined in Data.Greskell.GMap Methods toJSON :: GMap c k v -> Value # toEncoding :: GMap c k v -> Encoding # toJSONList :: [GMap c k v] -> Value # toEncodingList :: [GMap c k v] -> Encoding #
Show (c k v) => Show (GMap c k v)
Instance details Defined in Data.Greskell.GMap Methods showsPrec :: Int -> GMap c k v -> ShowS # show :: GMap c k v -> String # showList :: [GMap c k v] -> ShowS #
Eq (c k v) => Eq (GMap c k v)
Instance details Defined in Data.Greskell.GMap Methods (==) :: GMap c k v -> GMap c k v -> Bool # (/=) :: GMap c k v -> GMap c k v -> Bool #
AsIterator (GMap c k v)
Instance details Defined in Data.Greskell.AsIterator Associated Types type IteratorItem (GMap c k v) #
(FromGraphSON k, FromGraphSON v, IsList (c k v), Item (c k v) ~ (k, v), Traversable (c k), FromJSON (c k GValue)) => FromGraphSON (GMap c k v)	Use `parseToGMap`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (GMap c k v) #
GraphSONTyped (GMap c k v)	Map to "g:Map".
Instance details Defined in Data.Greskell.GMap Methods gsonTypeFor :: GMap c k v -> Text #
type IteratorItem (GMap c k v)
Instance details Defined in Data.Greskell.AsIterator type IteratorItem (GMap c k v) = GMapEntry k v

data GMapEntry k v #

Haskell representation of Map.Entry type.

Basically GraphSON encodes Java's Map.Entry type as if it were a Map with a single entry. Thus its encoded form is either a JSON object or a flattened key-values, as explained in GMap.

In old versions of TinkerPop, Map.Entry is encoded as a JSON object with "key" and "value" fields. FromJSON instance of GMapEntry supports this format as well, but ToJSON instance doesn't support it.

Constructors

GMapEntry
Fields gmapEntryFlat :: !Bool gmapEntryKey :: !k gmapEntryValue :: !v

Instances

Instances details

Foldable (GMapEntry k)
Instance details Defined in Data.Greskell.GMap Methods fold :: Monoid m => GMapEntry k m -> m # foldMap :: Monoid m => (a -> m) -> GMapEntry k a -> m # foldMap' :: Monoid m => (a -> m) -> GMapEntry k a -> m # foldr :: (a -> b -> b) -> b -> GMapEntry k a -> b # foldr' :: (a -> b -> b) -> b -> GMapEntry k a -> b # foldl :: (b -> a -> b) -> b -> GMapEntry k a -> b # foldl' :: (b -> a -> b) -> b -> GMapEntry k a -> b # foldr1 :: (a -> a -> a) -> GMapEntry k a -> a # foldl1 :: (a -> a -> a) -> GMapEntry k a -> a # toList :: GMapEntry k a -> [a] # null :: GMapEntry k a -> Bool # length :: GMapEntry k a -> Int # elem :: Eq a => a -> GMapEntry k a -> Bool # maximum :: Ord a => GMapEntry k a -> a # minimum :: Ord a => GMapEntry k a -> a # sum :: Num a => GMapEntry k a -> a # product :: Num a => GMapEntry k a -> a #
Traversable (GMapEntry k)
Instance details Defined in Data.Greskell.GMap Methods traverse :: Applicative f => (a -> f b) -> GMapEntry k a -> f (GMapEntry k b) # sequenceA :: Applicative f => GMapEntry k (f a) -> f (GMapEntry k a) # mapM :: Monad m => (a -> m b) -> GMapEntry k a -> m (GMapEntry k b) # sequence :: Monad m => GMapEntry k (m a) -> m (GMapEntry k a) #
Functor (GMapEntry k)
Instance details Defined in Data.Greskell.GMap Methods fmap :: (a -> b) -> GMapEntry k a -> GMapEntry k b # (<$) :: a -> GMapEntry k b -> GMapEntry k a #
(FromJSON k, FromJSONKey k, FromJSON v) => FromJSON (GMapEntry k v)	Use `parseToGMapEntry`.
Instance details Defined in Data.Greskell.GMap Methods parseJSON :: Value -> Parser (GMapEntry k v) # parseJSONList :: Value -> Parser [GMapEntry k v] #
(ToJSON k, ToJSONKey k, Ord k, ToJSON v) => ToJSON (GMapEntry k v)
Instance details Defined in Data.Greskell.GMap Methods toJSON :: GMapEntry k v -> Value # toEncoding :: GMapEntry k v -> Encoding # toJSONList :: [GMapEntry k v] -> Value # toEncodingList :: [GMapEntry k v] -> Encoding #
(Show k, Show v) => Show (GMapEntry k v)
Instance details Defined in Data.Greskell.GMap Methods showsPrec :: Int -> GMapEntry k v -> ShowS # show :: GMapEntry k v -> String # showList :: [GMapEntry k v] -> ShowS #
(Eq k, Eq v) => Eq (GMapEntry k v)
Instance details Defined in Data.Greskell.GMap Methods (==) :: GMapEntry k v -> GMapEntry k v -> Bool # (/=) :: GMapEntry k v -> GMapEntry k v -> Bool #
(Ord k, Ord v) => Ord (GMapEntry k v)
Instance details Defined in Data.Greskell.GMap Methods compare :: GMapEntry k v -> GMapEntry k v -> Ordering # (<) :: GMapEntry k v -> GMapEntry k v -> Bool # (<=) :: GMapEntry k v -> GMapEntry k v -> Bool # (>) :: GMapEntry k v -> GMapEntry k v -> Bool # (>=) :: GMapEntry k v -> GMapEntry k v -> Bool # max :: GMapEntry k v -> GMapEntry k v -> GMapEntry k v # min :: GMapEntry k v -> GMapEntry k v -> GMapEntry k v #
AsIterator (GMapEntry k v)
Instance details Defined in Data.Greskell.AsIterator Associated Types type IteratorItem (GMapEntry k v) #
(FromGraphSON k, FromGraphSON v, FromJSONKey k) => FromGraphSON (GMapEntry k v)	Use `parseToGMapEntry`.
Instance details Defined in Data.Greskell.GraphSON Methods parseGraphSON :: GValue -> Parser (GMapEntry k v) #
GraphSONTyped (GMapEntry k v)	Map to "g:Map".
Instance details Defined in Data.Greskell.GMap Methods gsonTypeFor :: GMapEntry k v -> Text #
type IteratorItem (GMapEntry k v)
Instance details Defined in Data.Greskell.AsIterator type IteratorItem (GMapEntry k v) = GMapEntry k v

module Data.Greskell.AsIterator

module Data.Greskell.AsLabel

module Data.Greskell.PMap