akka.stream.impl.fusing

Class Fold<In,Out>

java.lang.Object

akka.stream.stage.GraphStageWithMaterializedValue<S,NotUsed>

akka.stream.stage.GraphStage<FlowShape<In,Out>>

akka.stream.impl.fusing.Fold<In,Out>

All Implemented Interfaces:

Graph<FlowShape<In,Out>,NotUsed>, java.io.Serializable, scala.Equals, scala.Product

public final class Fold<In,Out>
extends GraphStage<FlowShape<In,Out>>
implements scala.Product, scala.Serializable

INTERNAL API

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Fold(Out zero, scala.Function2<Out,In,Out> f)

Method Summary

Modifier and Type	Method and Description
static Graph<S,M>	addAttributes(Attributes attr)
static Graph<S,M>	async()
abstract static boolean	canEqual(java.lang.Object that)
GraphStageLogic	createLogic(Attributes inheritedAttributes)
static scala.Tuple2<GraphStageLogic,NotUsed>	createLogicAndMaterializedValue(Attributes inheritedAttributes)
abstract static boolean	equals(java.lang.Object that)
scala.Function2<Out,In,Out>	f()
Inlet<In>	in()
Attributes	initialAttributes()
static StreamLayout.Module	module()
static Graph<S,M>	named(java.lang.String name)
Outlet<Out>	out()
abstract static int	productArity()
abstract static java.lang.Object	productElement(int n)
static scala.collection.Iterator<java.lang.Object>	productIterator()
static java.lang.String	productPrefix()
FlowShape<In,Out>	shape() The shape of a graph is all that is externally visible: its inlets and outlets.
java.lang.String	toString()
static Graph<S,M>	withAttributes(Attributes attr)
Out	zero()

Methods inherited from class akka.stream.stage.GraphStage

createLogicAndMaterializedValue

Methods inherited from class akka.stream.stage.GraphStageWithMaterializedValue

module, withAttributes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface scala.Product

$init$, productArity, productElement, productIterator, productPrefix

Methods inherited from interface scala.Equals

canEqual, equals

Methods inherited from interface akka.stream.Graph

addAttributes, async, named

Constructor Detail

Fold

public Fold(Out zero,
            scala.Function2<Out,In,Out> f)

Method Detail

named

public static Graph<S,M> named(java.lang.String name)

async

public static Graph<S,M> async()

addAttributes

public static Graph<S,M> addAttributes(Attributes attr)

module

public static final StreamLayout.Module module()

withAttributes

public static final Graph<S,M> withAttributes(Attributes attr)

createLogicAndMaterializedValue

public static final scala.Tuple2<GraphStageLogic,NotUsed> createLogicAndMaterializedValue(Attributes inheritedAttributes)

canEqual

public abstract static boolean canEqual(java.lang.Object that)

equals

public abstract static boolean equals(java.lang.Object that)

productElement

public abstract static java.lang.Object productElement(int n)

productArity

public abstract static int productArity()

productIterator

public static scala.collection.Iterator<java.lang.Object> productIterator()

productPrefix

public static java.lang.String productPrefix()

zero

public Out zero()

f

public scala.Function2<Out,In,Out> f()

in

public Inlet<In> in()

out

public Outlet<Out> out()

shape

public FlowShape<In,Out> shape()

Description copied from interface: Graph

The shape of a graph is all that is externally visible: its inlets and outlets.

Specified by:

shape in interface Graph<FlowShape<In,Out>,NotUsed>

Returns:

(undocumented)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

initialAttributes

public Attributes initialAttributes()

Overrides:

initialAttributes in class GraphStageWithMaterializedValue<FlowShape<In,Out>,NotUsed>

createLogic

public GraphStageLogic createLogic(Attributes inheritedAttributes)

Specified by:

createLogic in class GraphStage<FlowShape<In,Out>>