org.apache.flink.runtime.io.network.api

Class RecordWriter<T extends IOReadableWritable>

java.lang.Object

org.apache.flink.runtime.io.network.api.BufferWriter

org.apache.flink.runtime.io.network.api.RecordWriter<T>

Type Parameters:

T - the type of the record that can be emitted with this record writer

public class RecordWriter<T extends IOReadableWritable>
extends BufferWriter

A record writer connects the application to an output gate. It allows the application of emit (send out) to the output gate. The output gate will then take care of distributing the emitted records among the output channels.

Field Summary

Fields inherited from class org.apache.flink.runtime.io.network.api.BufferWriter

outputGate

Constructor Summary

Constructors

Constructor and Description
RecordWriter(AbstractInvokable invokable)
RecordWriter(AbstractInvokable invokable, ChannelSelector<T> channelSelector)

Method Summary

Methods

Modifier and Type	Method and Description
void	broadcastEvent(AbstractEvent event)
void	clearBuffers()
void	emit(T record)
void	flush()
void	initializeSerializers()
void	sendEndOfSuperstep()

Methods inherited from class org.apache.flink.runtime.io.network.api.BufferWriter

broadcastBuffer, sendBuffer, sendBufferAndEvent, sendEvent, subscribeToEvent, unsubscribeFromEvent

Methods inherited from class java.lang.Object

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

Constructor Detail

RecordWriter

public RecordWriter(AbstractInvokable invokable)

RecordWriter

public RecordWriter(AbstractInvokable invokable,
            ChannelSelector<T> channelSelector)

Method Detail

initializeSerializers

public void initializeSerializers()

emit

public void emit(T record)
          throws IOException,
                 InterruptedException

Throws:

IOException

InterruptedException

flush

public void flush()
           throws IOException,
                  InterruptedException

Throws:

IOException

InterruptedException

broadcastEvent

public void broadcastEvent(AbstractEvent event)
                    throws IOException,
                           InterruptedException

Overrides:

broadcastEvent in class BufferWriter

Throws:

IOException

InterruptedException

sendEndOfSuperstep

public void sendEndOfSuperstep()
                        throws IOException,
                               InterruptedException

Overrides:

sendEndOfSuperstep in class BufferWriter

Throws:

IOException

InterruptedException

clearBuffers

public void clearBuffers()