org.apache.flink.table.runtime.io

类 CompressedHeaderlessChannelReaderInputView

java.lang.Object

org.apache.flink.runtime.memory.AbstractPagedInputView

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

org.apache.flink.table.runtime.io.CompressedHeaderlessChannelReaderInputView

所有已实现的接口:

DataInput, org.apache.flink.core.memory.DataInputView, org.apache.flink.runtime.io.disk.iomanager.RequestDoneCallback<org.apache.flink.runtime.io.network.buffer.Buffer>, org.apache.flink.runtime.io.network.buffer.BufferRecycler

public class CompressedHeaderlessChannelReaderInputView
extends org.apache.flink.runtime.io.disk.iomanager.AbstractChannelReaderInputView
implements org.apache.flink.runtime.io.disk.iomanager.RequestDoneCallback<org.apache.flink.runtime.io.network.buffer.Buffer>, org.apache.flink.runtime.io.network.buffer.BufferRecycler

A DataInputView that is backed by a BufferFileReader, making it effectively a data input stream. The view reads it data in blocks from the underlying channel and decompress it before returning to caller. The view can only read data that has been written by CompressedHeaderlessChannelWriterOutputView, due to block formatting.

字段概要

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

headerLength

构造器概要

构造器

构造器和说明
CompressedHeaderlessChannelReaderInputView(org.apache.flink.runtime.io.disk.iomanager.FileIOChannel.ID id, org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager, org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory, int compressionBlockSize, int numBlocks)

方法概要

限定符和类型	方法和说明
List<org.apache.flink.core.memory.MemorySegment>	close()
org.apache.flink.runtime.io.disk.iomanager.FileIOChannel	getChannel()
protected int	getLimitForSegment(org.apache.flink.core.memory.MemorySegment segment)
org.apache.flink.runtime.io.disk.iomanager.BufferFileReader	getReader()
boolean	isClosed()
protected org.apache.flink.core.memory.MemorySegment	nextSegment(org.apache.flink.core.memory.MemorySegment current)
void	recycle(org.apache.flink.core.memory.MemorySegment segment)
void	requestFailed(org.apache.flink.runtime.io.network.buffer.Buffer buffer, IOException e)
void	requestSuccessful(org.apache.flink.runtime.io.network.buffer.Buffer request)

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

advance, clear, doAdvance, getCurrentPositionInSegment, getCurrentSegment, getCurrentSegmentLimit, getHeaderLength, read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, seekInput, skipBytes, skipBytesToRead

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

CompressedHeaderlessChannelReaderInputView

public CompressedHeaderlessChannelReaderInputView(org.apache.flink.runtime.io.disk.iomanager.FileIOChannel.ID id,
                                                  org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager,
                                                  org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory,
                                                  int compressionBlockSize,
                                                  int numBlocks)
                                           throws IOException

抛出:

IOException

方法详细资料

nextSegment

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

指定者:

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

抛出:

IOException

getReader

public org.apache.flink.runtime.io.disk.iomanager.BufferFileReader getReader()

getLimitForSegment

protected int getLimitForSegment(org.apache.flink.core.memory.MemorySegment segment)

指定者:

getLimitForSegment 在类中 org.apache.flink.runtime.memory.AbstractPagedInputView

close

public List<org.apache.flink.core.memory.MemorySegment> close()
                                                       throws IOException

指定者:

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

抛出:

IOException

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.AbstractChannelReaderInputView

isClosed

public boolean isClosed()

requestSuccessful

public void requestSuccessful(org.apache.flink.runtime.io.network.buffer.Buffer request)

指定者:

requestSuccessful 在接口中 org.apache.flink.runtime.io.disk.iomanager.RequestDoneCallback<org.apache.flink.runtime.io.network.buffer.Buffer>

requestFailed

public void requestFailed(org.apache.flink.runtime.io.network.buffer.Buffer buffer,
                          IOException e)

指定者:

requestFailed 在接口中 org.apache.flink.runtime.io.disk.iomanager.RequestDoneCallback<org.apache.flink.runtime.io.network.buffer.Buffer>

recycle

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

指定者:

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