Package 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	Description
protected BinaryRowData	bufferedKey
protected BinaryRowData	bufferedRow
protected RecordComparator	keyComparator
protected ResettableExternalBuffer	matchBuffer
protected BinaryRowData	matchKey
protected BinaryRowData	probeKey

Constructor Summary

Constructors

Constructor

Description

SortMergeJoinIterator(BinaryRowDataSerializer probeSerializer, BinaryRowDataSerializer bufferedSerializer, Projection<RowData,BinaryRowData> probeProjection, Projection<RowData,BinaryRowData> bufferedProjection, RecordComparator keyComparator, MutableObjectIterator<RowData> probeIterator, MutableObjectIterator<BinaryRowData> bufferedIterator, ResettableExternalBuffer buffer, boolean[] filterNulls)

Method Summary

Modifier and Type	Method	Description
protected boolean	advanceNextSuitableBufferedRow()
protected boolean	advanceNextSuitableProbeRow()
protected void	bufferMatchingRows()
void	close()
ResettableExternalBuffer	getMatchBuffer()
BinaryRowData	getMatchKey()
RowData	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 BinaryRowData probeKey

bufferedRow

protected BinaryRowData bufferedRow

bufferedKey

protected BinaryRowData bufferedKey

matchKey

protected BinaryRowData matchKey

matchBuffer

protected ResettableExternalBuffer matchBuffer

Constructor Detail

SortMergeJoinIterator

public SortMergeJoinIterator(BinaryRowDataSerializer probeSerializer,
                             BinaryRowDataSerializer bufferedSerializer,
                             Projection<RowData,BinaryRowData> probeProjection,
                             Projection<RowData,BinaryRowData> bufferedProjection,
                             RecordComparator keyComparator,
                             MutableObjectIterator<RowData> probeIterator,
                             MutableObjectIterator<BinaryRowData> 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 RowData getProbeRow()

getMatchKey

public BinaryRowData getMatchKey()

getMatchBuffer

public ResettableExternalBuffer getMatchBuffer()

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable