Packages

final class MergePreferred[T] extends GraphStage[MergePreferredShape[T]]

Merge several streams, taking elements as they arrive from input streams (picking from preferred when several have elements ready).

A MergePreferred has one out port, one preferred input port and 1 or more secondary in ports.

Emits when one of the inputs has an element available, preferring a specified input if multiple have elements available

Backpressures when downstream backpressures

Completes when all upstreams complete (eagerComplete=false) or one upstream completes (eagerComplete=true), default value is false

Cancels when downstream cancels

Source
Graph.scala
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Inherited
  1. MergePreferred
  2. GraphStage
  3. GraphStageWithMaterializedValue
  4. Graph
  5. AnyRef
  6. 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 MergePreferred(secondaryPorts: Int, eagerComplete: Boolean)

Type Members

  1. type Shape = MergePreferredShape[T]

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

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

    Definition Classes
    Graph

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to any2stringadd[MergePreferred[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (MergePreferred[T], B)
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to ArrowAssoc[MergePreferred[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. def addAttributes(attr: Attributes): Graph[MergePreferredShape[T], NotUsed]

    Add the given attributes to this Graph.

    Add the given attributes to this Graph. If the specific attribute was already present on this graph this means the added attribute will be more specific than the existing one. If this Source is a composite of multiple graphs, new attributes on the composite will be less specific than attributes set directly on the individual graphs of the composite.

    Definition Classes
    Graph
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. def async(dispatcher: String, inputBufferSize: Int): Graph[MergePreferredShape[T], NotUsed]

    Put an asynchronous boundary around this Graph

    Put an asynchronous boundary around this Graph

    dispatcher

    Run the graph on this dispatcher

    inputBufferSize

    Set the input buffer to this size for the graph

    Definition Classes
    Graph
  9. def async(dispatcher: String): Graph[MergePreferredShape[T], NotUsed]

    Put an asynchronous boundary around this Graph

    Put an asynchronous boundary around this Graph

    dispatcher

    Run the graph on this dispatcher

    Definition Classes
    Graph
  10. def async: Graph[MergePreferredShape[T], NotUsed]

    Put an asynchronous boundary around this Graph

    Put an asynchronous boundary around this Graph

    Definition Classes
    Graph
  11. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  12. def createLogic(inheritedAttributes: Attributes): GraphStageLogic
    Definition Classes
    MergePreferredGraphStage
  13. final def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, NotUsed)
  14. val eagerComplete: Boolean
  15. def ensuring(cond: (MergePreferred[T]) ⇒ Boolean, msg: ⇒ Any): MergePreferred[T]
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to Ensuring[MergePreferred[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. def ensuring(cond: (MergePreferred[T]) ⇒ Boolean): MergePreferred[T]
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to Ensuring[MergePreferred[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. def ensuring(cond: Boolean, msg: ⇒ Any): MergePreferred[T]
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to Ensuring[MergePreferred[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  18. def ensuring(cond: Boolean): MergePreferred[T]
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to Ensuring[MergePreferred[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  19. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  20. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  21. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  22. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to StringFormat[MergePreferred[T]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  23. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  24. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  25. def in(id: Int): Inlet[T]
  26. def initialAttributes: Attributes
  27. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  28. def named(name: String): Graph[MergePreferredShape[T], NotUsed]
    Definition Classes
    Graph
  29. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  30. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  31. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  32. def out: Outlet[T]
  33. def preferred: Inlet[T]
  34. val secondaryPorts: Int
  35. val shape: MergePreferredShape[T]

    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
    MergePreferredGraph
  36. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  37. def toString(): String
    Definition Classes
    AnyRef → Any
  38. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  39. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  40. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  41. final def withAttributes(attr: Attributes): Graph[MergePreferredShape[T], NotUsed]
    Definition Classes
    GraphStageWithMaterializedValueGraph
  42. def [B](y: B): (MergePreferred[T], B)
    Implicit
    This member is added by an implicit conversion from MergePreferred[T] to ArrowAssoc[MergePreferred[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from GraphStage[MergePreferredShape[T]]

Inherited from Graph[MergePreferredShape[T], NotUsed]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from MergePreferred[T] to any2stringadd[MergePreferred[T]]

Inherited by implicit conversion StringFormat from MergePreferred[T] to StringFormat[MergePreferred[T]]

Inherited by implicit conversion Ensuring from MergePreferred[T] to Ensuring[MergePreferred[T]]

Inherited by implicit conversion ArrowAssoc from MergePreferred[T] to ArrowAssoc[MergePreferred[T]]

Ungrouped