org.apache.flink.streaming.api.datastream

Class DataStreamSink<T>

java.lang.Object

org.apache.flink.streaming.api.datastream.DataStreamSink<T>

Type Parameters:

T - The type of the elements in the Stream

public class DataStreamSink<T>
extends Object

A Stream Sink. This is used for emitting elements from a streaming topology.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DataStreamSink(DataStream<T> inputStream, StreamSink<T> operator)

Method Summary

Methods

Modifier and Type	Method and Description
DataStreamSink<T>	disableChaining() Turns off chaining for this operator so thread co-location will not be used as an optimization.
SinkTransformation<T>	getTransformation() Returns the transformation that contains the actual sink operator of this sink.
DataStreamSink<T>	name(String name) Sets the name of this sink.
DataStreamSink<T>	setParallelism(int parallelism) Sets the parallelism for this sink.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataStreamSink

protected DataStreamSink(DataStream<T> inputStream,
              StreamSink<T> operator)

Method Detail

getTransformation

public SinkTransformation<T> getTransformation()

Returns the transformation that contains the actual sink operator of this sink.

name

public DataStreamSink<T> name(String name)

Sets the name of this sink. This name is used by the visualization and logging during runtime.

Returns:

The named sink.

setParallelism

public DataStreamSink<T> setParallelism(int parallelism)

Sets the parallelism for this sink. The degree must be higher than zero.

Parameters:

parallelism - The parallelism for this sink.

Returns:

The sink with set parallelism.

disableChaining

public DataStreamSink<T> disableChaining()

Turns off chaining for this operator so thread co-location will not be used as an optimization.

Chaining can be turned off for the whole job by StreamExecutionEnvironment.disableOperatorChaining() however it is not advised for performance considerations.

Returns:

The sink with chaining disabled