Packages

final class Concat[T] extends GraphStage[UniformFanInShape[T, T]]

Takes multiple streams and outputs one stream formed from the input streams by first emitting all of the elements from the first stream and then emitting all of the elements from the second stream, etc.

A Concat has one first port, one second port and one out port.

Emits when the current stream has an element available; if the current input completes, it tries the next one

Backpressures when downstream backpressures

Completes when all upstreams complete

Cancels when downstream cancels

Source
Graph.scala
Ordering
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Inherited
  1. Concat
  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 Concat(inputPorts: Int)

Type Members

  1. type Shape = UniformFanInShape[T, 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. def addAttributes(attr: Attributes): Graph[UniformFanInShape[T, T], NotUsed]
    Definition Classes
    Graph
  2. def async: Graph[UniformFanInShape[T, T], NotUsed]

    Put an asynchronous boundary around this Graph

    Put an asynchronous boundary around this Graph

    Definition Classes
    Graph
  3. def createLogic(inheritedAttributes: Attributes): GraphStageLogic with OutHandler
    Definition Classes
    ConcatGraphStage
  4. final def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, NotUsed)
  5. val in: IndexedSeq[Inlet[T]]
  6. def initialAttributes: Attributes
  7. val inputPorts: Int
  8. final lazy val module: Module

    INTERNAL API.

    INTERNAL API.

    Every materializable element must be backed by a stream layout module

    Definition Classes
    GraphStageWithMaterializedValueGraph
  9. def named(name: String): Graph[UniformFanInShape[T, T], NotUsed]
    Definition Classes
    Graph
  10. val out: Outlet[T]
  11. val shape: UniformFanInShape[T, T]
    Definition Classes
    ConcatGraph
  12. def toString(): String
    Definition Classes
    Concat → AnyRef → Any
  13. final def withAttributes(attr: Attributes): Graph[UniformFanInShape[T, T], NotUsed]
    Definition Classes
    GraphStageWithMaterializedValueGraph