org.apache.flink.streaming.api.transformations

Class SplitTransformation<T>

java.lang.Object

org.apache.flink.streaming.api.transformations.StreamTransformation<T>

org.apache.flink.streaming.api.transformations.SplitTransformation<T>

Type Parameters:

T - The type of the elements that result from this SplitTransformation

@Internal
public class SplitTransformation<T>
extends StreamTransformation<T>

This transformation represents a split of one DataStream into several DataStreams using an OutputSelector.

This does not create a physical operation, it only affects how upstream operations are connected to downstream operations.

Field Summary

Fields inherited from class org.apache.flink.streaming.api.transformations.StreamTransformation

bufferTimeout, id, idCounter, name, outputType, typeUsed

Constructor Summary

Constructors

Constructor and Description
SplitTransformation(StreamTransformation<T> input, OutputSelector<T> outputSelector) Creates a new SplitTransformation from the given input and OutputSelector.

Method Summary

Modifier and Type	Method and Description
StreamTransformation<T>	getInput() Returns the input StreamTransformation.
OutputSelector<T>	getOutputSelector() Returns the OutputSelector.
Collection<StreamTransformation<?>>	getTransitivePredecessors() Returns all transitive predecessor StreamTransformations of this StreamTransformation.
void	setChainingStrategy(ChainingStrategy strategy) Sets the chaining strategy of this StreamTransformation.

Methods inherited from class org.apache.flink.streaming.api.transformations.StreamTransformation

equals, getBufferTimeout, getId, getMaxParallelism, getMinResources, getName, getNewNodeId, getOutputType, getParallelism, getPreferredResources, getSlotSharingGroup, getUid, getUserProvidedNodeHash, hashCode, setBufferTimeout, setMaxParallelism, setName, setOutputType, setParallelism, setResources, setSlotSharingGroup, setUid, setUidHash, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SplitTransformation

public SplitTransformation(StreamTransformation<T> input,
                           OutputSelector<T> outputSelector)

Creates a new SplitTransformation from the given input and OutputSelector.

Parameters:

input - The input StreamTransformation

outputSelector - The output selector

Method Detail

getInput

public StreamTransformation<T> getInput()

Returns the input StreamTransformation.

getOutputSelector

public OutputSelector<T> getOutputSelector()

Returns the OutputSelector.

getTransitivePredecessors

public Collection<StreamTransformation<?>> getTransitivePredecessors()

Description copied from class: StreamTransformation

Returns all transitive predecessor StreamTransformations of this StreamTransformation. This is, for example, used when determining whether a feedback edge of an iteration actually has the iteration head as a predecessor.

Specified by:

getTransitivePredecessors in class StreamTransformation<T>

Returns:

The list of transitive predecessors.

setChainingStrategy

public final void setChainingStrategy(ChainingStrategy strategy)

Description copied from class: StreamTransformation

Sets the chaining strategy of this StreamTransformation.

Specified by:

setChainingStrategy in class StreamTransformation<T>