org.apache.flink.table.runtime.operators.join

Class SortMergeJoinIterator

java.lang.Object

org.apache.flink.table.runtime.operators.join.SortMergeJoinIterator

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

SortMergeInnerJoinIterator, SortMergeOneSideOuterJoinIterator

public abstract class SortMergeJoinIterator
extends Object
implements Closeable

Gets probeRow and match rows for inner/left/right join.

Field Summary

Fields

Modifier and Type	Field and Description
protected BinaryRow	bufferedKey
protected BinaryRow	bufferedRow
protected RecordComparator	keyComparator
protected ResettableExternalBuffer	matchBuffer
protected BinaryRow	matchKey
protected BinaryRow	probeKey

Constructor Summary

Constructors

Constructor and Description

SortMergeJoinIterator(BinaryRowSerializer probeSerializer, BinaryRowSerializer bufferedSerializer, Projection<BaseRow,BinaryRow> probeProjection, Projection<BaseRow,BinaryRow> bufferedProjection, RecordComparator keyComparator, org.apache.flink.util.MutableObjectIterator<BaseRow> probeIterator, org.apache.flink.util.MutableObjectIterator<BinaryRow> bufferedIterator, ResettableExternalBuffer buffer, boolean[] filterNulls)

Method Summary

Modifier and Type	Method and Description
protected boolean	advanceNextSuitableBufferedRow()
protected boolean	advanceNextSuitableProbeRow()
protected void	bufferMatchingRows()
void	close()
ResettableExternalBuffer	getMatchBuffer()
BinaryRow	getMatchKey()
BaseRow	getProbeRow()
protected boolean	nextProbe()

Methods inherited from class java.lang.Object

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

Field Detail

keyComparator

protected final RecordComparator keyComparator

probeKey

protected BinaryRow probeKey

bufferedRow

protected BinaryRow bufferedRow

bufferedKey

protected BinaryRow bufferedKey

matchKey

protected BinaryRow matchKey

matchBuffer

protected ResettableExternalBuffer matchBuffer

Constructor Detail

SortMergeJoinIterator

public SortMergeJoinIterator(BinaryRowSerializer probeSerializer,
                             BinaryRowSerializer bufferedSerializer,
                             Projection<BaseRow,BinaryRow> probeProjection,
                             Projection<BaseRow,BinaryRow> bufferedProjection,
                             RecordComparator keyComparator,
                             org.apache.flink.util.MutableObjectIterator<BaseRow> probeIterator,
                             org.apache.flink.util.MutableObjectIterator<BinaryRow> bufferedIterator,
                             ResettableExternalBuffer buffer,
                             boolean[] filterNulls)
                      throws IOException

Throws:

IOException

Method Detail

advanceNextSuitableProbeRow

protected boolean advanceNextSuitableProbeRow()
                                       throws IOException

Throws:

IOException

advanceNextSuitableBufferedRow

protected boolean advanceNextSuitableBufferedRow()
                                          throws IOException

Throws:

IOException

nextProbe

protected boolean nextProbe()
                     throws IOException

Throws:

IOException

bufferMatchingRows

protected void bufferMatchingRows()
                           throws IOException

Throws:

IOException

getProbeRow

public BaseRow getProbeRow()

getMatchKey

public BinaryRow getMatchKey()

getMatchBuffer

public ResettableExternalBuffer getMatchBuffer()

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable