org.apache.flink.table.runtime.operators.sort

类 BinaryKVExternalMerger

java.lang.Object

org.apache.flink.table.runtime.operators.sort.AbstractBinaryExternalMerger<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>

org.apache.flink.table.runtime.operators.sort.BinaryKVExternalMerger

所有已实现的接口:

Closeable, AutoCloseable

public class BinaryKVExternalMerger
extends AbstractBinaryExternalMerger<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>

Key-Value style record merger for sort.

字段概要

从类继承的字段 org.apache.flink.table.runtime.operators.sort.AbstractBinaryExternalMerger

ioManager, pageSize

构造器概要

构造器

构造器和说明

BinaryKVExternalMerger(org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager, int pageSize, int maxFanIn, SpillChannelManager channelManager, BinaryRowDataSerializer keySerializer, BinaryRowDataSerializer valueSerializer, RecordComparator comparator, boolean compressionEnable, org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory, int compressionBlockSize)

方法概要

限定符和类型	方法和说明
protected org.apache.flink.util.MutableObjectIterator<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>	channelReaderInputViewIterator(org.apache.flink.runtime.io.disk.iomanager.AbstractChannelReaderInputView inView)
protected Comparator<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>	mergeComparator()
protected List<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>	mergeReusedEntries(int size)
protected void	writeMergingOutput(org.apache.flink.util.MutableObjectIterator<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>> mergeIterator, org.apache.flink.runtime.memory.AbstractPagedOutputView output) read the merged stream and write the data back.

从类继承的方法 org.apache.flink.table.runtime.operators.sort.AbstractBinaryExternalMerger

close, getMergingIterator, mergeChannelList

从类继承的方法 java.lang.Object

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

构造器详细资料

BinaryKVExternalMerger

public BinaryKVExternalMerger(org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager,
                              int pageSize,
                              int maxFanIn,
                              SpillChannelManager channelManager,
                              BinaryRowDataSerializer keySerializer,
                              BinaryRowDataSerializer valueSerializer,
                              RecordComparator comparator,
                              boolean compressionEnable,
                              org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory,
                              int compressionBlockSize)

方法详细资料

mergeReusedEntries

protected List<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>> mergeReusedEntries(int size)

指定者:

mergeReusedEntries 在类中 AbstractBinaryExternalMerger<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>

返回:

reused entry object used in merging.

channelReaderInputViewIterator

protected org.apache.flink.util.MutableObjectIterator<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>> channelReaderInputViewIterator(org.apache.flink.runtime.io.disk.iomanager.AbstractChannelReaderInputView inView)

指定者:

channelReaderInputViewIterator 在类中 AbstractBinaryExternalMerger<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>

返回:

entry iterator reading from inView.

mergeComparator

protected Comparator<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>> mergeComparator()

指定者:

mergeComparator 在类中 AbstractBinaryExternalMerger<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>

返回:

merging comparator used in merging.

writeMergingOutput

protected void writeMergingOutput(org.apache.flink.util.MutableObjectIterator<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>> mergeIterator,
                                  org.apache.flink.runtime.memory.AbstractPagedOutputView output)
                           throws IOException

从类复制的说明: AbstractBinaryExternalMerger

read the merged stream and write the data back.

指定者:

writeMergingOutput 在类中 AbstractBinaryExternalMerger<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.table.data.binary.BinaryRowData,org.apache.flink.table.data.binary.BinaryRowData>>

抛出:

IOException