abstract class GraphStage[S <: Shape] extends GraphStageWithMaterializedValue[S, NotUsed]
A GraphStage represents a reusable graph stream processing operator.
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.
- Source
- GraphStage.scala
- Alphabetic
- By Inheritance
- GraphStage
- GraphStageWithMaterializedValue
- Graph
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
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- Public
- All
Instance Constructors
- new GraphStage()
Type Members
Abstract Value Members
-
abstract
def
createLogic(inheritedAttributes: Attributes): GraphStageLogic
- 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, 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[S, 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
-
def
async(dispatcher: String): Graph[S, 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
-
def
async: Graph[S, NotUsed]
Put an asynchronous boundary around this
Graph
Put an asynchronous boundary around this
Graph
- Definition Classes
- Graph
-
final
def
createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, NotUsed)
- Definition Classes
- GraphStage → GraphStageWithMaterializedValue
-
def
named(name: String): Graph[S, NotUsed]
- Definition Classes
- Graph
-
final
def
withAttributes(attr: Attributes): Graph[S, NotUsed]
- Definition Classes
- GraphStageWithMaterializedValue → Graph