org.apache.flink.streaming.runtime.io

Class CoRecordReader<T1 extends org.apache.flink.core.io.IOReadableWritable,T2 extends org.apache.flink.core.io.IOReadableWritable>

java.lang.Object

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

org.apache.flink.streaming.runtime.io.CoRecordReader<T1,T2>

All Implemented Interfaces:

org.apache.flink.runtime.io.network.api.reader.ReaderBase, org.apache.flink.runtime.util.event.EventListener<org.apache.flink.runtime.io.network.partition.consumer.InputGate>, StreamingReader

public class CoRecordReader<T1 extends org.apache.flink.core.io.IOReadableWritable,T2 extends org.apache.flink.core.io.IOReadableWritable>
extends org.apache.flink.runtime.io.network.api.reader.AbstractReader
implements org.apache.flink.runtime.util.event.EventListener<org.apache.flink.runtime.io.network.partition.consumer.InputGate>, StreamingReader

A CoRecordReader wraps MutableRecordReaders of two different input types to read records effectively.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.flink.streaming.runtime.io.CoRecordReader.CoBarrierBuffer	barrierBuffer1
protected org.apache.flink.streaming.runtime.io.CoRecordReader.CoBarrierBuffer	barrierBuffer2

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

inputGate

Constructor Summary

Constructors

Constructor and Description
CoRecordReader(org.apache.flink.runtime.io.network.partition.consumer.InputGate inputgate1, org.apache.flink.runtime.io.network.partition.consumer.InputGate inputgate2)

Method Summary

Modifier and Type	Method and Description
protected void	addToAvailable(org.apache.flink.runtime.io.network.partition.consumer.InputGate bufferReader)
void	cleanup()
void	clearBuffers()
protected int	getNextReaderIndexBlocking()
protected int	getNextRecord(T1 target1, T2 target2)
void	onEvent(org.apache.flink.runtime.io.network.partition.consumer.InputGate bufferReader)
void	requestPartitionsOnce()

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

handleEvent, hasReachedEndOfSuperstep, isFinished, publish, registerTaskEventListener, sendTaskEvent, setIterativeReader, startNextSuperstep

Methods inherited from class java.lang.Object

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

Field Detail

barrierBuffer1

protected org.apache.flink.streaming.runtime.io.CoRecordReader.CoBarrierBuffer barrierBuffer1

barrierBuffer2

protected org.apache.flink.streaming.runtime.io.CoRecordReader.CoBarrierBuffer barrierBuffer2

Constructor Detail

CoRecordReader

public CoRecordReader(org.apache.flink.runtime.io.network.partition.consumer.InputGate inputgate1,
                      org.apache.flink.runtime.io.network.partition.consumer.InputGate inputgate2)

Method Detail

requestPartitionsOnce

public void requestPartitionsOnce()
                           throws IOException,
                                  InterruptedException

Throws:

IOException

InterruptedException

getNextRecord

protected int getNextRecord(T1 target1,
                            T2 target2)
                     throws IOException,
                            InterruptedException

Throws:

IOException

InterruptedException

getNextReaderIndexBlocking

protected int getNextReaderIndexBlocking()
                                  throws InterruptedException

Throws:

InterruptedException

onEvent

public void onEvent(org.apache.flink.runtime.io.network.partition.consumer.InputGate bufferReader)

Specified by:

onEvent in interface org.apache.flink.runtime.util.event.EventListener<org.apache.flink.runtime.io.network.partition.consumer.InputGate>

addToAvailable

protected void addToAvailable(org.apache.flink.runtime.io.network.partition.consumer.InputGate bufferReader)

clearBuffers

public void clearBuffers()

cleanup

public void cleanup()
             throws IOException

Specified by:

cleanup in interface StreamingReader

Throws:

IOException