org.apache.flink.streaming.api.operators

Class StreamSource<T>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator<T,SourceFunction<T>>

org.apache.flink.streaming.api.operators.StreamSource<T>

All Implemented Interfaces:

Serializable, OutputTypeConfigurable<T>, StreamOperator<T>

public class StreamSource<T>
extends AbstractUdfStreamOperator<T,SourceFunction<T>>
implements StreamOperator<T>

StreamOperator for streaming sources.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StreamSource.AutomaticWatermarkContext<T> SourceFunction.SourceContext to be used for sources with automatic timestamps and watermark emission.
static class	StreamSource.ManualWatermarkContext<T> SourceFunction.SourceContext to be used for sources with manual timestamp assignment and manual watermark emission.
static class	StreamSource.NonTimestampContext<T> SourceFunction.SourceContext to be used for sources that don't emit watermarks.
static class	StreamSource.NonWatermarkContext<T> SourceFunction.SourceContext to be used for sources that don't emit watermarks.

Field Summary

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

userFunction

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, LOG, output

Constructor Summary

Constructors

Constructor and Description
StreamSource(SourceFunction<T> sourceFunction)

Method Summary

Methods

Modifier and Type	Method and Description
void	cancel()
void	run(Object lockingObject, Output<StreamRecord<T>> collector)

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

close, dispose, getUserFunction, getUserFunctionParameters, notifyOfCompletedCheckpoint, open, restoreState, setOutputType, setup, snapshotOperatorState

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

createKeyValueState, createKeyValueState, disableInputCopy, getChainingStrategy, getContainingTask, getExecutionConfig, getOperatorConfig, getRuntimeContext, getStateBackend, getUserCodeClassloader, isInputCopyingDisabled, registerTimer, setChainingStrategy, setKeyContext, setKeyContextElement

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, dispose, getChainingStrategy, isInputCopyingDisabled, notifyOfCompletedCheckpoint, open, restoreState, setChainingStrategy, setKeyContextElement, setup, snapshotOperatorState

Constructor Detail

StreamSource

public StreamSource(SourceFunction<T> sourceFunction)

Method Detail

run

public void run(Object lockingObject,
       Output<StreamRecord<T>> collector)
         throws Exception

Throws:

Exception

cancel

public void cancel()