Class

akka.stream.stage

AbstractGraphStageWithMaterializedValue

Related Doc: package stage

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

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

Extend this AbstractGraphStageWithMaterializedValue 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 GraphStageWithMaterializedValue for Scala DSL for this stage.

Source
GraphStage.scala
Linear Supertypes
GraphStageWithMaterializedValue[S, M], Graph[S, M], AnyRef, Any
Type Hierarchy
Ordering
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Inherited
  1. AbstractGraphStageWithMaterializedValue
  2. GraphStageWithMaterializedValue
  3. Graph
  4. AnyRef
  5. 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 AbstractGraphStageWithMaterializedValue()

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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 createLogicAndMaterializedValuePair(inheritedAttributes: Attributes): Pair[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 AbstractGraphStageWithMaterializedValue[S, M] to any2stringadd[AbstractGraphStageWithMaterializedValue[S, M]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

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

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    Implicit information
    This member is added by an implicit conversion from AbstractGraphStageWithMaterializedValue[S, M] to ArrowAssoc[AbstractGraphStageWithMaterializedValue[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. final def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, M)

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    Definition Classes
    AbstractGraphStageWithMaterializedValue → GraphStageWithMaterializedValue
    Annotations
    @throws( classOf[Exception] )

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

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

  12. def ensuring(cond: (AbstractGraphStageWithMaterializedValue[S, M]) ⇒ Boolean): AbstractGraphStageWithMaterializedValue[S, M]

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

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

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

  14. def ensuring(cond: Boolean): AbstractGraphStageWithMaterializedValue[S, M]

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

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

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    Definition Classes
    AnyRef

  16. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  17. def formatted(fmtstr: String): String

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

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

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()

  19. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()

  20. def initialAttributes: Attributes

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    Attributes
    protected
    Definition Classes
    GraphStageWithMaterializedValue

  21. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

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

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    Definition Classes
    Graph

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

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    Definition Classes
    AnyRef

  24. final def notify(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()

  25. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()

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

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    Definition Classes
    AnyRef

  27. def toString(): String

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    Definition Classes
    AnyRef → Any

  28. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    GraphStageWithMaterializedValue → Graph

  32. def →[B](y: B): (AbstractGraphStageWithMaterializedValue[S, M], B)

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    Implicit information
    This member is added by an implicit conversion from AbstractGraphStageWithMaterializedValue[S, M] to ArrowAssoc[AbstractGraphStageWithMaterializedValue[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 GraphStageWithMaterializedValue[S, M]

Inherited from Graph[S, M]

Inherited from AnyRef

Inherited from Any

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

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

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

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

Ungrouped