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
- Alphabetic
- By Inheritance
- Concat
- GraphStage
- GraphStageWithMaterializedValue
- Graph
- AnyRef
- Any
- by GraphMapMatVal
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
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- Public
- Protected
Type Members
- 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
- def addAttributes(attr: Attributes): Graph[UniformFanInShape[T, 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
- def async(dispatcher: String, inputBufferSize: Int): Graph[UniformFanInShape[T, T], NotUsed]
Put an asynchronous boundary around this
GraphPut 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
- def async(dispatcher: String): Graph[UniformFanInShape[T, T], NotUsed]
Put an asynchronous boundary around this
GraphPut an asynchronous boundary around this
Graph- dispatcher
Run the graph on this dispatcher
- Definition Classes
- Graph
- def async: Graph[UniformFanInShape[T, T], NotUsed]
Put an asynchronous boundary around this
GraphPut an asynchronous boundary around this
Graph- Definition Classes
- Graph
- def createLogic(inheritedAttributes: Attributes): GraphStageLogic with OutHandler
- Definition Classes
- Concat → GraphStage
- final def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, NotUsed)
- Definition Classes
- GraphStage → GraphStageWithMaterializedValue
- def getAttributes: Attributes
- Definition Classes
- Graph
- val in: IndexedSeq[Inlet[T]]
- def initialAttributes: Attributes
- Definition Classes
- Concat → GraphStageWithMaterializedValue
- val inputPorts: Int
- def mapMaterializedValue[M2](f: (NotUsed) => M2): Graph[UniformFanInShape[T, T], M2]
Transform the materialized value of this Graph, leaving all other properties as they were.
Transform the materialized value of this Graph, leaving all other properties as they were.
- f
function to map the graph's materialized value
- Implicit
- This member is added by an implicit conversion from Concat[T] toGraphMapMatVal[UniformFanInShape[T, T], NotUsed] performed by method GraphMapMatVal in akka.stream.Graph.
- Definition Classes
- GraphMapMatVal
- def named(name: String): Graph[UniformFanInShape[T, T], NotUsed]
Specifies the name of the Graph.
Specifies the name of the Graph. If the name is null or empty the name is ignored, i.e. #none is returned.
- Definition Classes
- Graph
- val out: Outlet[T]
- val shape: UniformFanInShape[T, T]
The shape of a graph is all that is externally visible: its inlets and outlets.
- def toString(): String
- Definition Classes
- Concat → AnyRef → Any
- final def withAttributes(attr: Attributes): Graph[UniformFanInShape[T, T], NotUsed]
Replace the attributes of this Flow with the given ones.
Replace the attributes of this Flow with the given ones. If this Flow 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
- GraphStageWithMaterializedValue → Graph