org.apache.flink.table.runtime.io

类 CompressedHeaderlessChannelWriterOutputView

java.lang.Object

org.apache.flink.runtime.memory.AbstractPagedOutputView

org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

org.apache.flink.table.runtime.io.CompressedHeaderlessChannelWriterOutputView

所有已实现的接口:

DataOutput, org.apache.flink.core.memory.DataOutputView, org.apache.flink.core.memory.MemorySegmentWritable, org.apache.flink.runtime.io.network.buffer.BufferRecycler

public final class CompressedHeaderlessChannelWriterOutputView
extends org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView
implements org.apache.flink.runtime.io.network.buffer.BufferRecycler

A DataOutputView that is backed by a FileIOChannel, making it effectively a data output stream. The view will compress its data before writing it in blocks to the underlying channel.

字段概要

从类继承的字段 org.apache.flink.runtime.memory.AbstractPagedOutputView

headerLength, segmentSize

构造器概要

构造器

构造器和说明
CompressedHeaderlessChannelWriterOutputView(org.apache.flink.runtime.io.disk.iomanager.BufferFileWriter writer, 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
int	close()
int	getBlockCount()
org.apache.flink.runtime.io.disk.iomanager.FileIOChannel	getChannel()
long	getNumBytes()
long	getNumCompressedBytes()
protected org.apache.flink.core.memory.MemorySegment	nextSegment(org.apache.flink.core.memory.MemorySegment current, int positionInCurrent)
void	recycle(org.apache.flink.core.memory.MemorySegment memorySegment)

从类继承的方法 org.apache.flink.runtime.memory.AbstractPagedOutputView

advance, clear, getCurrentPositionInSegment, getCurrentSegment, getHeaderLength, getSegmentSize, seekOutput, skipBytesToWrite, write, write, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

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

CompressedHeaderlessChannelWriterOutputView

public CompressedHeaderlessChannelWriterOutputView(org.apache.flink.runtime.io.disk.iomanager.BufferFileWriter writer,
                                                   org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory,
                                                   int compressionBlockSize)

方法详细资料

getChannel

public org.apache.flink.runtime.io.disk.iomanager.FileIOChannel getChannel()

指定者:

getChannel 在类中 org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

close

public int close()
          throws IOException

指定者:

close 在类中 org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

抛出:

IOException

nextSegment

protected org.apache.flink.core.memory.MemorySegment nextSegment(org.apache.flink.core.memory.MemorySegment current,
                                                                 int positionInCurrent)
                                                          throws IOException

指定者:

nextSegment 在类中 org.apache.flink.runtime.memory.AbstractPagedOutputView

抛出:

IOException

getNumBytes

public long getNumBytes()

指定者:

getNumBytes 在类中 org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

getNumCompressedBytes

public long getNumCompressedBytes()

指定者:

getNumCompressedBytes 在类中 org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

getBlockCount

public int getBlockCount()

指定者:

getBlockCount 在类中 org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

recycle

public void recycle(org.apache.flink.core.memory.MemorySegment memorySegment)

指定者:

recycle 在接口中 org.apache.flink.runtime.io.network.buffer.BufferRecycler