ProjectM36.Client.Simple

A simplified client interface for Project:M36 database access.

Documentation

simpleConnectProjectM36 :: ConnectionInfo -> IO (Either DbError DbConn)

Same as simpleConnectProjectM36At but always connects to the master branch.

simpleConnectProjectM36At :: HeadName -> ConnectionInfo -> IO (Either DbError DbConn)

A simple alternative to connectProjectM36 which includes simple session management.

withTransaction :: DbConn -> Db a -> IO (Either DbError a)

Runs a Db monad which may include some database updates. If an exception or error occurs, the transaction is rolled back. Otherwise, the transaction is committed to the head of the current branch.

withTransactionUsing :: DbConn -> MergeStrategy -> Db a -> IO (Either DbError a)

Same as withTransaction except that the merge strategy can be specified.

execute :: DatabaseContextExpr -> Db ()

Execute a DatabaseContextExpr in the DB monad. Database context expressions manipulate the state of the database. In case of an error, the transaction is terminated and the connection's session is rolled back.

executeOrErr :: DatabaseContextExpr -> Db (Either RelationalError ())

Run a DatabaseContextExpr update expression. If there is an error, just return it without cancelling the current transaction.

query :: RelationalExpr -> Db Relation

Run a RelationalExpr query in the DB monad. Relational expressions perform read-only queries against the current database state.

queryOrErr :: RelationalExpr -> Db (Either RelationalError Relation)

Run a RelationalExpr query expression. If there is an error, just return it without cancelling the transaction.

cancelTransaction :: DbError -> Db a

Cancel a transaction and carry some error information with it.

orCancelTransaction :: Either RelationalError a -> Db a

Converts the Either result from a Db action into an immediate cancel in the case of error.

rollback :: Db ()

Unconditionally roll back the current transaction and throw an exception to terminate the execution of the Db monad.

close :: DbConn -> IO ()

Closes the database connection.

data Atom

Database atoms are the smallest, undecomposable units of a tuple. Common examples are integers, text, or unique identity keys.

Constructors

IntegerAtom Integer

IntAtom Int

DoubleAtom Double

TextAtom Text

DayAtom Day

DateTimeAtom UTCTime

ByteStringAtom ByteString

BoolAtom Bool

RelationAtom Relation

ConstructedAtom DataConstructorName AtomType [Atom]

Instances

Eq Atom

Defined in ProjectM36.Base

Methods

(==) :: Atom -> Atom -> Bool

(/=) :: Atom -> Atom -> Bool

Show Atom

Defined in ProjectM36.Base

Methods

showsPrec :: Int -> Atom -> ShowS

show :: Atom -> String

showList :: [Atom] -> ShowS

Generic Atom

Defined in ProjectM36.Base

Associated Types

type Rep Atom :: * -> *

Methods

from :: Atom -> Rep Atom x

to :: Rep Atom x -> Atom

Hashable Atom

Defined in ProjectM36.Base

Methods

hashWithSalt :: Int -> Atom -> Int

hash :: Atom -> Int

Binary Atom

Defined in ProjectM36.Base

Methods

put :: Atom -> Put

get :: Get Atom

putList :: [Atom] -> Put

NFData Atom

Defined in ProjectM36.Base

Methods

rnf :: Atom -> ()

type Rep Atom

Defined in ProjectM36.Base

type Rep Atom = D1 (MetaData "Atom" "ProjectM36.Base" "project-m36-0.5.1-38P1EVgZYrJ9HDkvLyCm0" False) (((C1 (MetaCons "IntegerAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Integer)) :+: C1 (MetaCons "IntAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int))) :+: (C1 (MetaCons "DoubleAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Double)) :+: (C1 (MetaCons "TextAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text)) :+: C1 (MetaCons "DayAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Day))))) :+: ((C1 (MetaCons "DateTimeAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 UTCTime)) :+: C1 (MetaCons "ByteStringAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 ByteString))) :+: (C1 (MetaCons "BoolAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool)) :+: (C1 (MetaCons "RelationAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Relation)) :+: C1 (MetaCons "ConstructedAtom" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DataConstructorName) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [Atom])))))))

data AtomType

The AtomType uniquely identifies the type of a atom.

Constructors

IntAtomType

IntegerAtomType

DoubleAtomType

TextAtomType

DayAtomType

DateTimeAtomType

ByteStringAtomType

BoolAtomType

RelationAtomType Attributes

ConstructedAtomType TypeConstructorName TypeVarMap

TypeVariableType TypeVarName

Instances

Eq AtomType

Defined in ProjectM36.Base

Methods

(==) :: AtomType -> AtomType -> Bool

(/=) :: AtomType -> AtomType -> Bool

Show AtomType

Defined in ProjectM36.Base

Methods

showsPrec :: Int -> AtomType -> ShowS

show :: AtomType -> String

showList :: [AtomType] -> ShowS

Generic AtomType

Defined in ProjectM36.Base

Associated Types

type Rep AtomType :: * -> *

Methods

from :: AtomType -> Rep AtomType x

to :: Rep AtomType x -> AtomType

Hashable TypeVarMap

Defined in ProjectM36.Base

Methods

hashWithSalt :: Int -> TypeVarMap -> Int

hash :: TypeVarMap -> Int

Binary AtomType

Defined in ProjectM36.Base

Methods

put :: AtomType -> Put

get :: Get AtomType

putList :: [AtomType] -> Put

NFData AtomType

Defined in ProjectM36.Base

Methods

rnf :: AtomType -> ()

type Rep AtomType

Defined in ProjectM36.Base

type Rep AtomType = D1 (MetaData "AtomType" "ProjectM36.Base" "project-m36-0.5.1-38P1EVgZYrJ9HDkvLyCm0" False) (((C1 (MetaCons "IntAtomType" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "IntegerAtomType" PrefixI False) (U1 :: * -> *)) :+: (C1 (MetaCons "DoubleAtomType" PrefixI False) (U1 :: * -> *) :+: (C1 (MetaCons "TextAtomType" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "DayAtomType" PrefixI False) (U1 :: * -> *)))) :+: ((C1 (MetaCons "DateTimeAtomType" PrefixI False) (U1 :: * -> *) :+: (C1 (MetaCons "ByteStringAtomType" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "BoolAtomType" PrefixI False) (U1 :: * -> *))) :+: (C1 (MetaCons "RelationAtomType" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Attributes)) :+: (C1 (MetaCons "ConstructedAtomType" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarMap)) :+: C1 (MetaCons "TypeVariableType" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarName))))))

data Db a

Instances

Monad Db

Defined in ProjectM36.Client.Simple

Methods

(>>=) :: Db a -> (a -> Db b) -> Db b

(>>) :: Db a -> Db b -> Db b

return :: a -> Db a

fail :: String -> Db a

Functor Db

Defined in ProjectM36.Client.Simple

Methods

fmap :: (a -> b) -> Db a -> Db b

(<$) :: a -> Db b -> Db a

Applicative Db

Defined in ProjectM36.Client.Simple

Methods

pure :: a -> Db a

(<*>) :: Db (a -> b) -> Db a -> Db b

liftA2 :: (a -> b -> c) -> Db a -> Db b -> Db c

(*>) :: Db a -> Db b -> Db b

(<*) :: Db a -> Db b -> Db a

MonadIO Db

Defined in ProjectM36.Client.Simple

Methods

liftIO :: IO a -> Db a

type DbConn = (SessionId, Connection)

data DbError

A union of connection and other errors that can be returned from withTransaction.

Constructors

ConnError ConnectionError

RelError RelationalError

TransactionRolledBack

Instances

Eq DbError

Defined in ProjectM36.Client.Simple

Methods

(==) :: DbError -> DbError -> Bool

(/=) :: DbError -> DbError -> Bool

Show DbError

Defined in ProjectM36.Client.Simple

Methods

showsPrec :: Int -> DbError -> ShowS

show :: DbError -> String

showList :: [DbError] -> ShowS

data RelationalError

Constructors

NoSuchAttributeNamesError (Set AttributeName)

TupleAttributeCountMismatchError Int

EmptyAttributesError

DuplicateAttributeNamesError (Set AttributeName)

TupleAttributeTypeMismatchError Attributes

AttributeCountMismatchError Int

AttributeNamesMismatchError (Set AttributeName)

AttributeNameInUseError AttributeName

AttributeIsNotRelationValuedError AttributeName

CouldNotInferAttributes

RelVarNotDefinedError RelVarName

RelVarAlreadyDefinedError RelVarName

RelationTypeMismatchError Attributes Attributes

InclusionDependencyCheckError IncDepName

InclusionDependencyNameInUseError IncDepName

InclusionDependencyNameNotInUseError IncDepName

ParseError Text

PredicateExpressionError Text

NoCommonTransactionAncestorError TransactionId TransactionId

NoSuchTransactionError TransactionId

RootTransactionTraversalError

HeadNameSwitchingHeadProhibitedError HeadName

NoSuchHeadNameError HeadName

UnknownHeadError

NewTransactionMayNotHaveChildrenError TransactionId

ParentCountTraversalError Int Int

NewTransactionMissingParentError TransactionId

TransactionIsNotAHeadError TransactionId

TransactionGraphCycleError TransactionId

SessionIdInUseError TransactionId

NoSuchSessionError TransactionId

FailedToFindTransactionError TransactionId

TransactionIdInUseError TransactionId

NoSuchFunctionError AtomFunctionName

NoSuchTypeConstructorName TypeConstructorName

TypeConstructorAtomTypeMismatch TypeConstructorName AtomType

AtomTypeMismatchError AtomType AtomType

TypeConstructorNameMismatch TypeConstructorName TypeConstructorName

AtomTypeTypeConstructorReconciliationError AtomType TypeConstructorName

DataConstructorNameInUseError DataConstructorName

DataConstructorUsesUndeclaredTypeVariable TypeVarName

TypeConstructorTypeVarsMismatch (Set TypeVarName) (Set TypeVarName)

TypeConstructorTypeVarMissing TypeVarName

TypeConstructorTypeVarsTypesMismatch TypeConstructorName TypeVarMap TypeVarMap

DataConstructorTypeVarsMismatch DataConstructorName TypeVarMap TypeVarMap

AtomFunctionTypeVariableResolutionError AtomFunctionName TypeVarName

AtomFunctionTypeVariableMismatch TypeVarName AtomType AtomType

AtomTypeNameInUseError AtomTypeName

IncompletelyDefinedAtomTypeWithConstructorError

AtomTypeNameNotInUseError AtomTypeName

FunctionNameInUseError AtomFunctionName

FunctionNameNotInUseError AtomFunctionName

EmptyCommitError

FunctionArgumentCountMismatchError Int Int

ConstructedAtomArgumentCountMismatchError Int Int

NoSuchDataConstructorError DataConstructorName

NoSuchTypeConstructorError TypeConstructorName

InvalidAtomTypeName AtomTypeName

AtomTypeNotSupported AttributeName

AtomOperatorNotSupported Text

EmptyTuplesError

AtomTypeCountError [AtomType] [AtomType]

AtomFunctionTypeError AtomFunctionName Int AtomType AtomType

AtomFunctionUserError AtomFunctionError

PrecompiledFunctionRemoveError AtomFunctionName

RelationValuedAttributesNotSupportedError [AttributeName]

NotificationNameInUseError NotificationName

NotificationNameNotInUseError NotificationName

ImportError Text

ExportError Text

UnhandledExceptionError String

MergeTransactionError MergeError

ScriptError ScriptCompilationError

LoadFunctionError

DatabaseContextFunctionUserError DatabaseContextFunctionError

DatabaseLoadError PersistenceError

SubschemaNameInUseError SchemaName

SubschemaNameNotInUseError SchemaName

SchemaCreationError SchemaError

ImproperDatabaseStateError

MultipleErrors [RelationalError]

Instances

Eq RelationalError

Defined in ProjectM36.Error

Methods

(==) :: RelationalError -> RelationalError -> Bool

(/=) :: RelationalError -> RelationalError -> Bool

Show RelationalError

Defined in ProjectM36.Error

Methods

showsPrec :: Int -> RelationalError -> ShowS

show :: RelationalError -> String

showList :: [RelationalError] -> ShowS

Generic RelationalError

Defined in ProjectM36.Error

Associated Types

type Rep RelationalError :: * -> *

Methods

from :: RelationalError -> Rep RelationalError x

to :: Rep RelationalError x -> RelationalError

Binary RelationalError

Defined in ProjectM36.Error

Methods

put :: RelationalError -> Put

get :: Get RelationalError

putList :: [RelationalError] -> Put

NFData RelationalError

Defined in ProjectM36.Error

Methods

rnf :: RelationalError -> ()

type Rep RelationalError

Defined in ProjectM36.Error

type Rep RelationalError = D1 (MetaData "RelationalError" "ProjectM36.Error" "project-m36-0.5.1-38P1EVgZYrJ9HDkvLyCm0" False) ((((((C1 (MetaCons "NoSuchAttributeNamesError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set AttributeName))) :+: C1 (MetaCons "TupleAttributeCountMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int))) :+: (C1 (MetaCons "EmptyAttributesError" PrefixI False) (U1 :: * -> *) :+: (C1 (MetaCons "DuplicateAttributeNamesError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set AttributeName))) :+: C1 (MetaCons "TupleAttributeTypeMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Attributes))))) :+: ((C1 (MetaCons "AttributeCountMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int)) :+: C1 (MetaCons "AttributeNamesMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set AttributeName)))) :+: (C1 (MetaCons "AttributeNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName)) :+: (C1 (MetaCons "AttributeIsNotRelationValuedError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName)) :+: C1 (MetaCons "CouldNotInferAttributes" PrefixI False) (U1 :: * -> *))))) :+: (((C1 (MetaCons "RelVarNotDefinedError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName)) :+: C1 (MetaCons "RelVarAlreadyDefinedError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName))) :+: (C1 (MetaCons "RelationTypeMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Attributes) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Attributes)) :+: (C1 (MetaCons "InclusionDependencyCheckError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 IncDepName)) :+: C1 (MetaCons "InclusionDependencyNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 IncDepName))))) :+: ((C1 (MetaCons "InclusionDependencyNameNotInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 IncDepName)) :+: C1 (MetaCons "ParseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text))) :+: (C1 (MetaCons "PredicateExpressionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text)) :+: (C1 (MetaCons "NoCommonTransactionAncestorError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId)) :+: C1 (MetaCons "NoSuchTransactionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId))))))) :+: ((((C1 (MetaCons "RootTransactionTraversalError" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "HeadNameSwitchingHeadProhibitedError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 HeadName))) :+: (C1 (MetaCons "NoSuchHeadNameError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 HeadName)) :+: (C1 (MetaCons "UnknownHeadError" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "NewTransactionMayNotHaveChildrenError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId))))) :+: ((C1 (MetaCons "ParentCountTraversalError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int)) :+: C1 (MetaCons "NewTransactionMissingParentError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId))) :+: (C1 (MetaCons "TransactionIsNotAHeadError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId)) :+: (C1 (MetaCons "TransactionGraphCycleError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId)) :+: C1 (MetaCons "SessionIdInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId)))))) :+: (((C1 (MetaCons "NoSuchSessionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId)) :+: C1 (MetaCons "FailedToFindTransactionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId))) :+: (C1 (MetaCons "TransactionIdInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TransactionId)) :+: (C1 (MetaCons "NoSuchFunctionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName)) :+: C1 (MetaCons "NoSuchTypeConstructorName" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName))))) :+: ((C1 (MetaCons "TypeConstructorAtomTypeMismatch" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType)) :+: C1 (MetaCons "AtomTypeMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType))) :+: (C1 (MetaCons "TypeConstructorNameMismatch" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName)) :+: (C1 (MetaCons "AtomTypeTypeConstructorReconciliationError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName)) :+: C1 (MetaCons "DataConstructorNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DataConstructorName)))))))) :+: (((((C1 (MetaCons "DataConstructorUsesUndeclaredTypeVariable" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarName)) :+: C1 (MetaCons "TypeConstructorTypeVarsMismatch" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set TypeVarName)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set TypeVarName)))) :+: (C1 (MetaCons "TypeConstructorTypeVarMissing" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarName)) :+: (C1 (MetaCons "TypeConstructorTypeVarsTypesMismatch" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarMap) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarMap))) :+: C1 (MetaCons "DataConstructorTypeVarsMismatch" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DataConstructorName) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarMap) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarMap)))))) :+: ((C1 (MetaCons "AtomFunctionTypeVariableResolutionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarName)) :+: C1 (MetaCons "AtomFunctionTypeVariableMismatch" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeVarName) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType)))) :+: (C1 (MetaCons "AtomTypeNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomTypeName)) :+: (C1 (MetaCons "IncompletelyDefinedAtomTypeWithConstructorError" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "AtomTypeNameNotInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomTypeName)))))) :+: (((C1 (MetaCons "FunctionNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName)) :+: C1 (MetaCons "FunctionNameNotInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName))) :+: (C1 (MetaCons "EmptyCommitError" PrefixI False) (U1 :: * -> *) :+: (C1 (MetaCons "FunctionArgumentCountMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int)) :+: C1 (MetaCons "ConstructedAtomArgumentCountMismatchError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int))))) :+: ((C1 (MetaCons "NoSuchDataConstructorError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DataConstructorName)) :+: C1 (MetaCons "NoSuchTypeConstructorError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName))) :+: (C1 (MetaCons "InvalidAtomTypeName" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomTypeName)) :+: (C1 (MetaCons "AtomTypeNotSupported" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName)) :+: C1 (MetaCons "AtomOperatorNotSupported" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text))))))) :+: ((((C1 (MetaCons "EmptyTuplesError" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "AtomTypeCountError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [AtomType]) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [AtomType]))) :+: (C1 (MetaCons "AtomFunctionTypeError" PrefixI False) ((S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int)) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType))) :+: (C1 (MetaCons "AtomFunctionUserError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionError)) :+: C1 (MetaCons "PrecompiledFunctionRemoveError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName))))) :+: ((C1 (MetaCons "RelationValuedAttributesNotSupportedError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [AttributeName])) :+: C1 (MetaCons "NotificationNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 NotificationName))) :+: (C1 (MetaCons "NotificationNameNotInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 NotificationName)) :+: (C1 (MetaCons "ImportError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text)) :+: C1 (MetaCons "ExportError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text)))))) :+: (((C1 (MetaCons "UnhandledExceptionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String)) :+: C1 (MetaCons "MergeTransactionError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 MergeError))) :+: (C1 (MetaCons "ScriptError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 ScriptCompilationError)) :+: (C1 (MetaCons "LoadFunctionError" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "DatabaseContextFunctionUserError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DatabaseContextFunctionError))))) :+: ((C1 (MetaCons "DatabaseLoadError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 PersistenceError)) :+: (C1 (MetaCons "SubschemaNameInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 SchemaName)) :+: C1 (MetaCons "SubschemaNameNotInUseError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 SchemaName)))) :+: (C1 (MetaCons "SchemaCreationError" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 SchemaError)) :+: (C1 (MetaCons "ImproperDatabaseStateError" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "MultipleErrors" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [RelationalError])))))))))

data Attribute

A relation's type is composed of attribute names and types.

Constructors

Attribute AttributeName AtomType

Instances

Eq Attribute

Defined in ProjectM36.Base

Methods

(==) :: Attribute -> Attribute -> Bool

(/=) :: Attribute -> Attribute -> Bool

Show Attribute

Defined in ProjectM36.Base

Methods

showsPrec :: Int -> Attribute -> ShowS

show :: Attribute -> String

showList :: [Attribute] -> ShowS

Generic Attribute

Defined in ProjectM36.Base

Associated Types

type Rep Attribute :: * -> *

Methods

from :: Attribute -> Rep Attribute x

to :: Rep Attribute x -> Attribute

Hashable Attribute

Defined in ProjectM36.Base

Methods

hashWithSalt :: Int -> Attribute -> Int

hash :: Attribute -> Int

Binary Attribute

Defined in ProjectM36.Base

Methods

put :: Attribute -> Put

get :: Get Attribute

putList :: [Attribute] -> Put

NFData Attribute

Defined in ProjectM36.Base

Methods

rnf :: Attribute -> ()

type Rep Attribute

Defined in ProjectM36.Base

type Rep Attribute = D1 (MetaData "Attribute" "ProjectM36.Base" "project-m36-0.5.1-38P1EVgZYrJ9HDkvLyCm0" False) (C1 (MetaCons "Attribute" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomType)))

class (Eq a, NFData a, Binary a, Show a) => Atomable a where

All database values ("atoms") adhere to the Atomable typeclass. This class is derivable allowing new datatypes to be easily marshaling between Haskell values and database values.

Methods

toAtom :: a -> Atom

toAtom :: (Generic a, AtomableG (Rep a)) => a -> Atom

fromAtom :: Atom -> a

fromAtom :: (Generic a, AtomableG (Rep a)) => Atom -> a

Instances

Atomable Bool

Defined in ProjectM36.Atomable

Methods

toAtom :: Bool -> Atom

fromAtom :: Atom -> Bool

toAtomType :: proxy Bool -> AtomType

toAddTypeExpr :: proxy Bool -> DatabaseContextExpr

Atomable Double

Defined in ProjectM36.Atomable

Methods

toAtom :: Double -> Atom

fromAtom :: Atom -> Double

toAtomType :: proxy Double -> AtomType

toAddTypeExpr :: proxy Double -> DatabaseContextExpr

Atomable Int

Defined in ProjectM36.Atomable

Methods

toAtom :: Int -> Atom

fromAtom :: Atom -> Int

toAtomType :: proxy Int -> AtomType

toAddTypeExpr :: proxy Int -> DatabaseContextExpr

Atomable Integer

Defined in ProjectM36.Atomable

Methods

toAtom :: Integer -> Atom

fromAtom :: Atom -> Integer

toAtomType :: proxy Integer -> AtomType

toAddTypeExpr :: proxy Integer -> DatabaseContextExpr

Atomable ByteString

Defined in ProjectM36.Atomable

Methods

toAtom :: ByteString -> Atom

fromAtom :: Atom -> ByteString

toAtomType :: proxy ByteString -> AtomType

toAddTypeExpr :: proxy ByteString -> DatabaseContextExpr

Atomable Text

Defined in ProjectM36.Atomable

Methods

toAtom :: Text -> Atom

fromAtom :: Atom -> Text

toAtomType :: proxy Text -> AtomType

toAddTypeExpr :: proxy Text -> DatabaseContextExpr

Atomable UTCTime

Defined in ProjectM36.Atomable

Methods

toAtom :: UTCTime -> Atom

fromAtom :: Atom -> UTCTime

toAtomType :: proxy UTCTime -> AtomType

toAddTypeExpr :: proxy UTCTime -> DatabaseContextExpr

Atomable Day

Defined in ProjectM36.Atomable

Methods

toAtom :: Day -> Atom

fromAtom :: Atom -> Day

toAtomType :: proxy Day -> AtomType

toAddTypeExpr :: proxy Day -> DatabaseContextExpr

Atomable a => Atomable [a]

Defined in ProjectM36.Atomable

Methods

toAtom :: [a] -> Atom

fromAtom :: Atom -> [a]

toAtomType :: proxy [a] -> AtomType

toAddTypeExpr :: proxy [a] -> DatabaseContextExpr

Atomable a => Atomable (Maybe a)

Defined in ProjectM36.Atomable

Methods

toAtom :: Maybe a -> Atom

fromAtom :: Atom -> Maybe a

toAtomType :: proxy (Maybe a) -> AtomType

toAddTypeExpr :: proxy (Maybe a) -> DatabaseContextExpr

Atomable a => Atomable (NonEmpty a)

Defined in ProjectM36.Atomable

Methods

toAtom :: NonEmpty a -> Atom

fromAtom :: Atom -> NonEmpty a

toAtomType :: proxy (NonEmpty a) -> AtomType

toAddTypeExpr :: proxy (NonEmpty a) -> DatabaseContextExpr

(Atomable a, Atomable b) => Atomable (Either a b)

Defined in ProjectM36.Atomable

Methods

toAtom :: Either a b -> Atom

fromAtom :: Atom -> Either a b

toAtomType :: proxy (Either a b) -> AtomType

toAddTypeExpr :: proxy (Either a b) -> DatabaseContextExpr

data ConnectionInfo

Construct a ConnectionInfo to describe how to make the Connection. The database can be run within the current process or running remotely via distributed-process.

Constructors

InProcessConnectionInfo PersistenceStrategy NotificationCallback [GhcPkgPath]

RemoteProcessConnectionInfo DatabaseName NodeId NotificationCallback

data PersistenceStrategy

The persistence strategy is a global database option which represents how to persist the database in the filesystem, if at all.

Constructors

NoPersistence

no filesystem persistence/memory-only database

MinimalPersistence FilePath

fsync off, not crash-safe

CrashSafePersistence FilePath

full fsync to disk (flushes kernel and physical drive buffers to ensure that the transaction is on non-volatile storage)

Instances

Read PersistenceStrategy

Defined in ProjectM36.Base

Methods

readsPrec :: Int -> ReadS PersistenceStrategy

readList :: ReadS [PersistenceStrategy]

readPrec :: ReadPrec PersistenceStrategy

readListPrec :: ReadPrec [PersistenceStrategy]

Show PersistenceStrategy

Defined in ProjectM36.Base

Methods

showsPrec :: Int -> PersistenceStrategy -> ShowS

show :: PersistenceStrategy -> String

showList :: [PersistenceStrategy] -> ShowS

type NotificationCallback = NotificationName -> EvaluatedNotification -> IO ()

The type for notifications callbacks in the client. When a registered notification fires due to a changed relational expression evaluation, the server propagates the notifications to the clients in the form of the callback.

emptyNotificationCallback :: NotificationCallback

The empty notification callback ignores all callbacks.

data DatabaseContextExpr

Database context expressions modify the database context.

Constructors

NoOperation

Define RelVarName [AttributeExpr]

Undefine RelVarName

Assign RelVarName RelationalExpr

Insert RelVarName RelationalExpr

Delete RelVarName RestrictionPredicateExpr

Update RelVarName AttributeNameAtomExprMap RestrictionPredicateExpr

AddInclusionDependency IncDepName InclusionDependency

RemoveInclusionDependency IncDepName

AddNotification NotificationName RelationalExpr RelationalExpr RelationalExpr

RemoveNotification NotificationName

AddTypeConstructor TypeConstructorDef [DataConstructorDef]

RemoveTypeConstructor TypeConstructorName

RemoveAtomFunction AtomFunctionName

RemoveDatabaseContextFunction DatabaseContextFunctionName

ExecuteDatabaseContextFunction DatabaseContextFunctionName [AtomExpr]

MultipleExpr [DatabaseContextExpr]

Instances

Eq DatabaseContextExpr

Defined in ProjectM36.Base

Methods

(==) :: DatabaseContextExpr -> DatabaseContextExpr -> Bool

(/=) :: DatabaseContextExpr -> DatabaseContextExpr -> Bool

Show DatabaseContextExpr

Defined in ProjectM36.Base

Methods

showsPrec :: Int -> DatabaseContextExpr -> ShowS

show :: DatabaseContextExpr -> String

showList :: [DatabaseContextExpr] -> ShowS

Generic DatabaseContextExpr

Defined in ProjectM36.Base

Associated Types

type Rep DatabaseContextExpr :: * -> *

Methods

from :: DatabaseContextExpr -> Rep DatabaseContextExpr x

to :: Rep DatabaseContextExpr x -> DatabaseContextExpr

Binary DatabaseContextExpr

Defined in ProjectM36.Base

Methods

put :: DatabaseContextExpr -> Put

get :: Get DatabaseContextExpr

putList :: [DatabaseContextExpr] -> Put

type Rep DatabaseContextExpr

Defined in ProjectM36.Base

type Rep DatabaseContextExpr = D1 (MetaData "DatabaseContextExpr" "ProjectM36.Base" "project-m36-0.5.1-38P1EVgZYrJ9HDkvLyCm0" False) ((((C1 (MetaCons "NoOperation" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "Define" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [AttributeExpr]))) :+: (C1 (MetaCons "Undefine" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName)) :+: C1 (MetaCons "Assign" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelationalExpr)))) :+: ((C1 (MetaCons "Insert" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelationalExpr)) :+: C1 (MetaCons "Delete" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RestrictionPredicateExpr))) :+: (C1 (MetaCons "Update" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeNameAtomExprMap) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RestrictionPredicateExpr))) :+: C1 (MetaCons "AddInclusionDependency" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 IncDepName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 InclusionDependency))))) :+: (((C1 (MetaCons "RemoveInclusionDependency" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 IncDepName)) :+: C1 (MetaCons "AddNotification" PrefixI False) ((S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 NotificationName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelationalExpr)) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelationalExpr) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelationalExpr)))) :+: (C1 (MetaCons "RemoveNotification" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 NotificationName)) :+: C1 (MetaCons "AddTypeConstructor" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorDef) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [DataConstructorDef])))) :+: ((C1 (MetaCons "RemoveTypeConstructor" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TypeConstructorName)) :+: C1 (MetaCons "RemoveAtomFunction" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AtomFunctionName))) :+: (C1 (MetaCons "RemoveDatabaseContextFunction" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DatabaseContextFunctionName)) :+: (C1 (MetaCons "ExecuteDatabaseContextFunction" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 DatabaseContextFunctionName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [AtomExpr])) :+: C1 (MetaCons "MultipleExpr" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [DatabaseContextExpr])))))))

data RelationalExprBase a

A relational expression represents query (read) operations on a database.

Constructors

MakeRelationFromExprs (Maybe [AttributeExprBase a]) [TupleExprBase a]

MakeStaticRelation Attributes RelationTupleSet

ExistingRelation Relation

RelationVariable RelVarName a

Project (AttributeNamesBase a) (RelationalExprBase a)

Union (RelationalExprBase a) (RelationalExprBase a)

Join (RelationalExprBase a) (RelationalExprBase a)

Rename AttributeName AttributeName (RelationalExprBase a)

Difference (RelationalExprBase a) (RelationalExprBase a)

Group (AttributeNamesBase a) AttributeName (RelationalExprBase a)

Ungroup AttributeName (RelationalExprBase a)

Restrict (RestrictionPredicateExprBase a) (RelationalExprBase a)

Equals (RelationalExprBase a) (RelationalExprBase a)

NotEquals (RelationalExprBase a) (RelationalExprBase a)

Extend (ExtendTupleExprBase a) (RelationalExprBase a)

With [(RelVarName, RelationalExprBase a)] (RelationalExprBase a)

Instances

Binary RelationalExpr

Defined in ProjectM36.Base

Methods

put :: RelationalExpr -> Put

get :: Get RelationalExpr

putList :: [RelationalExpr] -> Put

Binary TransGraphRelationalExpr

Defined in ProjectM36.TransGraphRelationalExpression

Methods

put :: TransGraphRelationalExpr -> Put

get :: Get TransGraphRelationalExpr

putList :: [TransGraphRelationalExpr] -> Put

Eq a => Eq (RelationalExprBase a)

Defined in ProjectM36.Base

Methods

(==) :: RelationalExprBase a -> RelationalExprBase a -> Bool

(/=) :: RelationalExprBase a -> RelationalExprBase a -> Bool

Show a => Show (RelationalExprBase a)

Defined in ProjectM36.Base

Methods

showsPrec :: Int -> RelationalExprBase a -> ShowS

show :: RelationalExprBase a -> String

showList :: [RelationalExprBase a] -> ShowS

Generic (RelationalExprBase a)

Defined in ProjectM36.Base

Associated Types

type Rep (RelationalExprBase a) :: * -> *

Methods

from :: RelationalExprBase a -> Rep (RelationalExprBase a) x

to :: Rep (RelationalExprBase a) x -> RelationalExprBase a

NFData a => NFData (RelationalExprBase a)

Defined in ProjectM36.Base

Methods

rnf :: RelationalExprBase a -> ()

type Rep (RelationalExprBase a)

Defined in ProjectM36.Base

type Rep (RelationalExprBase a) = D1 (MetaData "RelationalExprBase" "ProjectM36.Base" "project-m36-0.5.1-38P1EVgZYrJ9HDkvLyCm0" False) ((((C1 (MetaCons "MakeRelationFromExprs" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe [AttributeExprBase a])) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [TupleExprBase a])) :+: C1 (MetaCons "MakeStaticRelation" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Attributes) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelationTupleSet))) :+: (C1 (MetaCons "ExistingRelation" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Relation)) :+: C1 (MetaCons "RelationVariable" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RelVarName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))) :+: ((C1 (MetaCons "Project" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (AttributeNamesBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))) :+: C1 (MetaCons "Union" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)))) :+: (C1 (MetaCons "Join" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))) :+: C1 (MetaCons "Rename" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))))))) :+: (((C1 (MetaCons "Difference" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))) :+: C1 (MetaCons "Group" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (AttributeNamesBase a)) :*: (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))))) :+: (C1 (MetaCons "Ungroup" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AttributeName) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))) :+: C1 (MetaCons "Restrict" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RestrictionPredicateExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))))) :+: ((C1 (MetaCons "Equals" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))) :+: C1 (MetaCons "NotEquals" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)))) :+: (C1 (MetaCons "Extend" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (ExtendTupleExprBase a)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a))) :+: C1 (MetaCons "With" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [(RelVarName, RelationalExprBase a)]) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (RelationalExprBase a)))))))