org.apache.flink.streaming.api.transformations

Class SinkTransformation<T>

java.lang.Object

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

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

Type Parameters:

T - The type of the elements in the input SinkTransformation

public class SinkTransformation<T>
extends StreamTransformation<Object>

This Transformation represents a Sink.

Field Summary

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

bufferTimeout, id, idCounter, name, outputType, resourceStrategy, typeUsed

Constructor Summary

Constructors

Constructor and Description
SinkTransformation(StreamTransformation<T> input, String name, StreamSink<T> operator, int parallelism) Creates a new SinkTransformation from the given input StreamTransformation.

Method Summary

Methods

Modifier and Type	Method and Description
StreamTransformation<T>	getInput() Returns the input StreamTransformation of this SinkTransformation.
StreamSink<T>	getOperator() Returns the StreamSink that is the operator of this SinkTransformation.
org.apache.flink.api.java.functions.KeySelector<T,?>	getStateKeySelector() Returns the KeySelector that must be used for partitioning keyed state in this Sink.
TypeInformation<?>	getStateKeyType()
Collection<StreamTransformation<?>>	getTransitivePredecessors() Returns all transitive predecessor StreamTransformations of this StreamTransformation.
void	setChainingStrategy(ChainingStrategy strategy) Sets the chaining strategy of this StreamTransformation.
void	setStateKeySelector(org.apache.flink.api.java.functions.KeySelector<T,?> stateKeySelector) Sets the KeySelector that must be used for partitioning keyed state of this Sink.
void	setStateKeyType(TypeInformation<?> stateKeyType)

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

equals, getBufferTimeout, getId, getName, getNewNodeId, getOutputType, getParallelism, getResourceStrategy, hashCode, setBufferTimeout, setName, setOutputType, setParallelism, setResourceStrategy, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SinkTransformation

public SinkTransformation(StreamTransformation<T> input,
                  String name,
                  StreamSink<T> operator,
                  int parallelism)

Creates a new SinkTransformation from the given input StreamTransformation.

Parameters:

input - The input StreamTransformation

name - The name of the StreamTransformation, this will be shown in Visualizations and the Log

operator - The sink operator

parallelism - The parallelism of this SinkTransformation

Method Detail

getInput

public StreamTransformation<T> getInput()

Returns the input StreamTransformation of this SinkTransformation.

getOperator

public StreamSink<T> getOperator()

Returns the StreamSink that is the operator of this SinkTransformation.

setStateKeySelector

public void setStateKeySelector(org.apache.flink.api.java.functions.KeySelector<T,?> stateKeySelector)

Sets the KeySelector that must be used for partitioning keyed state of this Sink.

Parameters:

stateKeySelector - The KeySelector to set

getStateKeySelector

public org.apache.flink.api.java.functions.KeySelector<T,?> getStateKeySelector()

Returns the KeySelector that must be used for partitioning keyed state in this Sink.

See Also:

setStateKeySelector(org.apache.flink.api.java.functions.KeySelector<T, ?>)

setStateKeyType

public void setStateKeyType(TypeInformation<?> stateKeyType)

getStateKeyType

public TypeInformation<?> getStateKeyType()

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<Object>

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<Object>