Spark.Core.Try

Useful classes and functions to deal with failures within the Karps framework.

This is a developer API. Users should not have to invoke functions from this module.

Documentation

data NodeError

An error associated to a particular node (an observable or a dataset).

Constructors

Error

Fields

• ePath :: NodePath
• eMessage :: Text

Instances

Eq NodeError

Methods

(==) :: NodeError -> NodeError -> Bool

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

Show NodeError

Methods

showsPrec :: Int -> NodeError -> ShowS

show :: NodeError -> String

showList :: [NodeError] -> ShowS

(~) * s String => CanRename DynColumn s

Methods

(@@) :: DynColumn -> s -> DynColumn

CanRename DynColumn FieldName

Methods

(@@) :: DynColumn -> FieldName -> DynColumn

Project DataFrame Text

Methods

_performProject :: DataFrame -> Text -> ProjectReturn DataFrame Text

Project DataFrame DynamicColProjection

Methods

_performProject :: DataFrame -> DynamicColProjection -> ProjectReturn DataFrame DynamicColProjection

Project DynColumn Text

Methods

_performProject :: DynColumn -> Text -> ProjectReturn DynColumn Text

Project DynColumn DynamicColProjection

Methods

_performProject :: DynColumn -> DynamicColProjection -> ProjectReturn DynColumn DynamicColProjection

GeneralizedHomo2 LocalFrame LocalFrame

Methods

_projectHomo :: LocalFrame -> LocalFrame -> HomoColOp2 -> GeneralizedHomoReturn LocalFrame LocalFrame

GeneralizedHomo2 DynColumn DynColumn

Methods

_projectHomo :: DynColumn -> DynColumn -> HomoColOp2 -> GeneralizedHomoReturn DynColumn DynColumn

Project DataFrame (StaticColProjection a b)

Methods

_performProject :: DataFrame -> StaticColProjection a b -> ProjectReturn DataFrame (StaticColProjection a b)

GeneralizedHomo2 LocalFrame (Column ref x)

Methods

_projectHomo :: LocalFrame -> Column ref x -> HomoColOp2 -> GeneralizedHomoReturn LocalFrame (Column ref x)

GeneralizedHomo2 DynColumn (Column ref x)

Methods

_projectHomo :: DynColumn -> Column ref x -> HomoColOp2 -> GeneralizedHomoReturn DynColumn (Column ref x)

(~) * s String => CanRename (Try (ComputeNode loc a)) s

Methods

(@@) :: Try (ComputeNode loc a) -> s -> Try (ComputeNode loc a)

GeneralizedHomo2 (Column ref x) LocalFrame

Methods

_projectHomo :: Column ref x -> LocalFrame -> HomoColOp2 -> GeneralizedHomoReturn (Column ref x) LocalFrame

GeneralizedHomo2 (Column ref x) DynColumn

Methods

_projectHomo :: Column ref x -> DynColumn -> HomoColOp2 -> GeneralizedHomoReturn (Column ref x) DynColumn

type Try = Either NodeError

The common result of attempting to build something.

tryError :: Text -> Try a

Returns an error object given a text clue.

tryEither :: Either Text a -> Try a

Returns an error object given a string clue. Remove this method tryError' :: String -> Try a tryError' = _error . T.pack

(internal) Given a potentially errored object, converts it to a Try.