org.apache.flink.streaming.api.collector.selector

Class DirectedOutput<OUT>

java.lang.Object

org.apache.flink.streaming.api.collector.selector.DirectedOutput<OUT>

All Implemented Interfaces:

Output<StreamRecord<OUT>>, Collector<StreamRecord<OUT>>

Direct Known Subclasses:

CopyingDirectedOutput

public class DirectedOutput<OUT>
extends Object
implements Output<StreamRecord<OUT>>

Wrapping Output that forwards to other Outputs based on a list of OutputSelectors.

Field Summary

Fields

Modifier and Type	Field and Description
protected Output<StreamRecord<OUT>>[]	allOutputs
protected HashMap<String,Output<StreamRecord<OUT>>[]>	outputMap
protected OutputSelector<OUT>[]	outputSelectors
protected Output<StreamRecord<OUT>>[]	selectAllOutputs

Constructor Summary

Constructors

Constructor and Description
DirectedOutput(List<OutputSelector<OUT>> outputSelectors, List<Tuple2<Output<StreamRecord<OUT>>,StreamEdge>> outputs)

Method Summary

Modifier and Type	Method and Description
void	close() Closes the collector.
<X> void	collect(OutputTag<X> outputTag, StreamRecord<X> record) Emits a record the side output identified by the given OutputTag.
void	collect(StreamRecord<OUT> record) Emits a record.
void	emitLatencyMarker(LatencyMarker latencyMarker)
void	emitWatermark(Watermark mark) Emits a Watermark from an operator.
protected Set<Output<StreamRecord<OUT>>>	selectOutputs(StreamRecord<OUT> record)

Methods inherited from class java.lang.Object

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

Field Detail

outputSelectors

protected final OutputSelector<OUT>[] outputSelectors

selectAllOutputs

protected final Output<StreamRecord<OUT>>[] selectAllOutputs

outputMap

protected final HashMap<String,Output<StreamRecord<OUT>>[]> outputMap

allOutputs

protected final Output<StreamRecord<OUT>>[] allOutputs

Constructor Detail

DirectedOutput

public DirectedOutput(List<OutputSelector<OUT>> outputSelectors,
                      List<Tuple2<Output<StreamRecord<OUT>>,StreamEdge>> outputs)

Method Detail

emitWatermark

public void emitWatermark(Watermark mark)

Description copied from interface: Output

Emits a Watermark from an operator. This watermark is broadcast to all downstream operators.

A watermark specifies that no element with a timestamp lower or equal to the watermark timestamp will be emitted in the future.

Specified by:

emitWatermark in interface Output<StreamRecord<OUT>>

emitLatencyMarker

public void emitLatencyMarker(LatencyMarker latencyMarker)

Specified by:

emitLatencyMarker in interface Output<StreamRecord<OUT>>

selectOutputs

protected Set<Output<StreamRecord<OUT>>> selectOutputs(StreamRecord<OUT> record)

collect

public void collect(StreamRecord<OUT> record)

Description copied from interface: Collector

Emits a record.

Specified by:

collect in interface Collector<StreamRecord<OUT>>

Parameters:

record - The record to collect.

collect

public <X> void collect(OutputTag<X> outputTag,
                        StreamRecord<X> record)

Description copied from interface: Output

Emits a record the side output identified by the given OutputTag.

Specified by:

collect in interface Output<StreamRecord<OUT>>

record - The record to collect.

close

public void close()

Description copied from interface: Collector

Closes the collector. If any data was buffered, that data will be flushed.

Specified by:

close in interface Collector<StreamRecord<OUT>>