org.apache.flink.streaming.runtime.io

Class RecordWriterOutput<OUT>

java.lang.Object

org.apache.flink.streaming.runtime.io.RecordWriterOutput<OUT>

All Implemented Interfaces:

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

@Internal
public class RecordWriterOutput<OUT>
extends Object
implements Output<StreamRecord<OUT>>

Implementation of Output that sends data using a RecordWriter.

Constructor Summary

Constructors

Constructor and Description
RecordWriterOutput(StreamRecordWriter<SerializationDelegate<StreamRecord<OUT>>> recordWriter, TypeSerializer<OUT> outSerializer, OutputTag outputTag, StreamStatusProvider streamStatusProvider)

Method Summary

Modifier and Type	Method and Description
void	broadcastEvent(AbstractEvent event)
void	clearBuffers()
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	emitStreamStatus(StreamStatus streamStatus)
void	emitWatermark(Watermark mark) Emits a Watermark from an operator.
void	flush()

Methods inherited from class java.lang.Object

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

Constructor Detail

RecordWriterOutput

public RecordWriterOutput(StreamRecordWriter<SerializationDelegate<StreamRecord<OUT>>> recordWriter,
                          TypeSerializer<OUT> outSerializer,
                          OutputTag outputTag,
                          StreamStatusProvider streamStatusProvider)

Method Detail

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.

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>>

emitStreamStatus

public void emitStreamStatus(StreamStatus streamStatus)

emitLatencyMarker

public void emitLatencyMarker(LatencyMarker latencyMarker)

Specified by:

emitLatencyMarker in interface Output<StreamRecord<OUT>>

broadcastEvent

public void broadcastEvent(AbstractEvent event)
                    throws IOException,
                           InterruptedException

Throws:

IOException

InterruptedException

flush

public void flush()
           throws IOException

Throws:

IOException

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>>

clearBuffers

public void clearBuffers()