abstract class AbstractGraphStageWithMaterializedValue[+S <: Shape, M] extends GraphStageWithMaterializedValue[S, M]
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Instance Constructors
- new AbstractGraphStageWithMaterializedValue()
Type Members
Abstract Value Members
- abstract def createLogicAndMaterializedValuePair(inheritedAttributes: Attributes): [GraphStageLogic, M]
- Annotations
- @throws(classOf[Exception])
- abstract def shape: S
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
- def addAttributes(attr: Attributes): Graph[S, M]
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[S, M]
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[S, M]
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[S, M]
Put an asynchronous boundary around this
GraphPut an asynchronous boundary around this
Graph- Definition Classes
- Graph
- final def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, M)
- Definition Classes
- → GraphStageWithMaterializedValue
- Annotations
- @throws(classOf[Exception])
- def getAttributes: Attributes
- Definition Classes
- Graph
- def mapMaterializedValue[M2](f: (M) => M2): Graph[S, 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 AbstractGraphStageWithMaterializedValue[S, M] toGraphMapMatVal[S, M] performed by method GraphMapMatVal in .This conversion will take place only if S is a subclass of stream.Shape (S <: stream.Shape).
- Definition Classes
- GraphMapMatVal
- def named(name: String): Graph[S, M]
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
- final def withAttributes(attr: Attributes): Graph[S, M]
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
- → Graph
Java API: A GraphStage represents a reusable graph stream processing operator.
Extend this
AbstractGraphStageWithMaterializedValueif you want to provide a materialized value, represented by the type parameterM. If your GraphStage does not need to provide a materialized value you can instead extend 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 operator.