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

类 BinaryExternalMerger

java.lang.Object

org.apache.flink.table.runtime.operators.sort.AbstractBinaryExternalMerger<org.apache.flink.table.data.binary.BinaryRowData>

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

所有已实现的接口:

Closeable, AutoCloseable

public class BinaryExternalMerger
extends AbstractBinaryExternalMerger<org.apache.flink.table.data.binary.BinaryRowData>

Record merger for sort of BinaryRowData.

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
BinaryExternalMerger(org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager, int pageSize, int maxFanIn, SpillChannelManager channelManager, BinaryRowDataSerializer serializer, 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.table.data.binary.BinaryRowData>	channelReaderInputViewIterator(org.apache.flink.runtime.io.disk.iomanager.AbstractChannelReaderInputView inView)
protected Comparator<org.apache.flink.table.data.binary.BinaryRowData>	mergeComparator()
protected List<org.apache.flink.table.data.binary.BinaryRowData>	mergeReusedEntries(int size)
protected void	writeMergingOutput(org.apache.flink.util.MutableObjectIterator<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

BinaryExternalMerger

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

方法详细资料

channelReaderInputViewIterator

protected org.apache.flink.util.MutableObjectIterator<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.table.data.binary.BinaryRowData>

返回:

entry iterator reading from inView.

mergeComparator

protected Comparator<org.apache.flink.table.data.binary.BinaryRowData> mergeComparator()

指定者:

mergeComparator 在类中 AbstractBinaryExternalMerger<org.apache.flink.table.data.binary.BinaryRowData>

返回:

merging comparator used in merging.

mergeReusedEntries

protected List<org.apache.flink.table.data.binary.BinaryRowData> mergeReusedEntries(int size)

指定者:

mergeReusedEntries 在类中 AbstractBinaryExternalMerger<org.apache.flink.table.data.binary.BinaryRowData>

返回:

reused entry object used in merging.

writeMergingOutput

protected void writeMergingOutput(org.apache.flink.util.MutableObjectIterator<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.table.data.binary.BinaryRowData>

抛出:

IOException