Class

akka.stream.stage

GraphStageWithMaterializedValue

Related Doc: package stage

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abstract class GraphStageWithMaterializedValue[+S <: Shape, +M] extends Graph[S, M]

Scala API: A GraphStage represents a reusable graph stream processing stage.

Extend this GraphStageWithMaterializedValue if you want to provide a materialized value, represented by the type parameter M. If your GraphStage does not need to provide a materialized value you can instead extende GraphStage which materializes a NotUsed value.

A GraphStage consists of a Shape which describes its input and output ports and a factory function that creates a GraphStageLogic which implements the processing logic that ties the ports together.

See also AbstractGraphStageWithMaterializedValue for Java DSL for this stage.

Source
GraphStage.scala
Linear Supertypes
Graph[S, M], AnyRef, Any
Known Subclasses
AbstractGraphStageWithMaterializedValue, Balance, Broadcast, Concat, GraphStage, Interleave, Merge, MergePreferred, MergePrioritized, MergeSorted, Partition, Unzip, UnzipWith10, UnzipWith11, UnzipWith12, UnzipWith13, UnzipWith14, UnzipWith15, UnzipWith16, UnzipWith17, UnzipWith18, UnzipWith19, UnzipWith2, UnzipWith20, UnzipWith3, UnzipWith4, UnzipWith5, UnzipWith6, UnzipWith7, UnzipWith8, UnzipWith9, Zip, ZipN, ZipWith10, ZipWith11, ZipWith12, ZipWith13, ZipWith14, ZipWith15, ZipWith16, ZipWith17, ZipWith18, ZipWith19, ZipWith2, ZipWith20, ZipWith3, ZipWith4, ZipWith5, ZipWith6, ZipWith7, ZipWith8, ZipWith9, ZipWithN
Type Hierarchy
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Inherited
  1. GraphStageWithMaterializedValue
  2. Graph
  3. AnyRef
  4. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new GraphStageWithMaterializedValue()

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Type Members

  1. type Shape = S

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    Type-level accessor for the shape parameter of this graph.

    Type-level accessor for the shape parameter of this graph.

    Definition Classes
    Graph

Abstract Value Members

  1. abstract def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, M)

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    Annotations
    @throws( classOf[Exception] )

  2. abstract def shape: S

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

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

    Definition Classes
    Graph

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

  3. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to any2stringadd[GraphStageWithMaterializedValue[S, M]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (GraphStageWithMaterializedValue[S, M], B)

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to ArrowAssoc[GraphStageWithMaterializedValue[S, M]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

  5. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  6. def addAttributes(attr: Attributes): Graph[S, M]

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    Definition Classes
    Graph

  7. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  8. def async: Graph[S, M]

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    Put an asynchronous boundary around this Graph

    Put an asynchronous boundary around this Graph

    Definition Classes
    Graph

  9. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @throws( ... )

  10. def ensuring(cond: (GraphStageWithMaterializedValue[S, M]) ⇒ Boolean, msg: ⇒ Any): GraphStageWithMaterializedValue[S, M]

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to Ensuring[GraphStageWithMaterializedValue[S, M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  11. def ensuring(cond: (GraphStageWithMaterializedValue[S, M]) ⇒ Boolean): GraphStageWithMaterializedValue[S, M]

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to Ensuring[GraphStageWithMaterializedValue[S, M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  12. def ensuring(cond: Boolean, msg: ⇒ Any): GraphStageWithMaterializedValue[S, M]

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to Ensuring[GraphStageWithMaterializedValue[S, M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  13. def ensuring(cond: Boolean): GraphStageWithMaterializedValue[S, M]

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to Ensuring[GraphStageWithMaterializedValue[S, M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  14. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  15. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  16. def formatted(fmtstr: String): String

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to StringFormat[GraphStageWithMaterializedValue[S, M]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  17. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()

  18. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()

  19. def initialAttributes: Attributes

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    Attributes
    protected

  20. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  21. def named(name: String): Graph[S, M]

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    Definition Classes
    Graph

  22. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  23. final def notify(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()

  24. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()

  25. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef

  26. def toString(): String

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    Definition Classes
    AnyRef → Any

  27. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  28. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  29. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  30. final def withAttributes(attr: Attributes): Graph[S, M]

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    Definition Classes
    GraphStageWithMaterializedValue → Graph

  31. def →[B](y: B): (GraphStageWithMaterializedValue[S, M], B)

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    Implicit information
    This member is added by an implicit conversion from GraphStageWithMaterializedValue[S, M] to ArrowAssoc[GraphStageWithMaterializedValue[S, M]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @Deprecated @deprecated @throws( classOf[java.lang.Throwable] )
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from Graph[S, M]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from GraphStageWithMaterializedValue[S, M] to any2stringadd[GraphStageWithMaterializedValue[S, M]]

Inherited by implicit conversion StringFormat from GraphStageWithMaterializedValue[S, M] to StringFormat[GraphStageWithMaterializedValue[S, M]]

Inherited by implicit conversion Ensuring from GraphStageWithMaterializedValue[S, M] to Ensuring[GraphStageWithMaterializedValue[S, M]]

Inherited by implicit conversion ArrowAssoc from GraphStageWithMaterializedValue[S, M] to ArrowAssoc[GraphStageWithMaterializedValue[S, M]]

Ungrouped