Package org.apache.flink.table.runtime.operators.multipleinput.output

Class BroadcastingOutput

java.lang.Object

org.apache.flink.table.runtime.operators.multipleinput.output.BroadcastingOutput

All Implemented Interfaces:

Output<StreamRecord<RowData>>, Collector<StreamRecord<RowData>>

Direct Known Subclasses:

CopyingBroadcastingOutput

public class BroadcastingOutput
extends Object
implements Output<StreamRecord<RowData>>

An Output that can be used to emit elements and other messages to multiple outputs.

The functionality of this class is similar to OperatorChain#BroadcastingOutputCollector.

Field Summary

Fields

Modifier and Type	Field	Description
protected Output<StreamRecord<RowData>>[]	outputs

Constructor Summary

Constructors

Constructor	Description
BroadcastingOutput(Output<StreamRecord<RowData>>[] outputs)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the collector.
void	collect(StreamRecord<RowData> record)	Emits a record.
<X> void	collect(OutputTag<X> outputTag, StreamRecord<X> record)	Emits a record to the side output identified by the given OutputTag.
void	emitLatencyMarker(LatencyMarker latencyMarker)
void	emitRecordAttributes(RecordAttributes recordAttributes)	Emits a RecordAttributes from an operator.
void	emitWatermark(Watermark mark)	Emits a Watermark from an operator.
void	emitWatermarkStatus(WatermarkStatus watermarkStatus)

Methods inherited from class java.lang.Object

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

Field Detail

outputs

protected final Output<StreamRecord<RowData>>[] outputs

Constructor Detail

BroadcastingOutput

public BroadcastingOutput(Output<StreamRecord<RowData>>[] 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<RowData>>

emitWatermarkStatus

public void emitWatermarkStatus(WatermarkStatus watermarkStatus)

Specified by:

emitWatermarkStatus in interface Output<StreamRecord<RowData>>

collect

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

Description copied from interface: Output

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

Specified by:

collect in interface Output<StreamRecord<RowData>>

record - The record to collect.

emitLatencyMarker

public void emitLatencyMarker(LatencyMarker latencyMarker)

Specified by:

emitLatencyMarker in interface Output<StreamRecord<RowData>>

collect

public void collect(StreamRecord<RowData> record)

Description copied from interface: Collector

Emits a record.

Specified by:

collect in interface Collector<StreamRecord<RowData>>

Parameters:

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<RowData>>

emitRecordAttributes

public void emitRecordAttributes(RecordAttributes recordAttributes)

Description copied from interface: Output

Emits a RecordAttributes from an operator. This element is broadcast to all downstream operators.

Specified by:

emitRecordAttributes in interface Output<StreamRecord<RowData>>