org.apache.flink.table.runtime.io

Class HeaderlessChannelWriterOutputView

java.lang.Object

org.apache.flink.runtime.memory.AbstractPagedOutputView

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

org.apache.flink.table.runtime.io.HeaderlessChannelWriterOutputView

All Implemented Interfaces:

DataOutput, org.apache.flink.core.memory.DataOutputView, org.apache.flink.core.memory.MemorySegmentWritable

public final class HeaderlessChannelWriterOutputView
extends org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

A DataOutputView that is backed by a BlockChannelWriter, making it effectively a data output stream. The view writes its data in blocks to the underlying channel, but does not expect header for each block.

Field Summary

Fields inherited from class org.apache.flink.runtime.memory.AbstractPagedOutputView

headerLength, segmentSize

Constructor Summary

Constructors

Constructor and Description
HeaderlessChannelWriterOutputView(org.apache.flink.runtime.io.disk.iomanager.BlockChannelWriter<org.apache.flink.core.memory.MemorySegment> writer, List<org.apache.flink.core.memory.MemorySegment> memory, int segmentSize)

Method Summary

Modifier and Type	Method and Description
int	close() Closes this OutputView, closing the underlying writer.
int	getBlockCount()
org.apache.flink.runtime.io.disk.iomanager.FileIOChannel	getChannel()
long	getNumBytes()
long	getNumCompressedBytes()
org.apache.flink.core.memory.MemorySegment	nextSegment(org.apache.flink.core.memory.MemorySegment current, int posInSegment)

Methods inherited from class 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

Methods inherited from class java.lang.Object

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

Constructor Detail

HeaderlessChannelWriterOutputView

public HeaderlessChannelWriterOutputView(org.apache.flink.runtime.io.disk.iomanager.BlockChannelWriter<org.apache.flink.core.memory.MemorySegment> writer,
                                         List<org.apache.flink.core.memory.MemorySegment> memory,
                                         int segmentSize)

Method Detail

getChannel

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

Specified by:

getChannel in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

close

public int close()
          throws IOException

Closes this OutputView, closing the underlying writer. And return number bytes in last memory segment.

Specified by:

close in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

Throws:

IOException

getBlockCount

public int getBlockCount()

Specified by:

getBlockCount in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

getNumBytes

public long getNumBytes()
                 throws IOException

Specified by:

getNumBytes in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

Throws:

IOException

getNumCompressedBytes

public long getNumCompressedBytes()
                           throws IOException

Specified by:

getNumCompressedBytes in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

Throws:

IOException

nextSegment

public org.apache.flink.core.memory.MemorySegment nextSegment(org.apache.flink.core.memory.MemorySegment current,
                                                              int posInSegment)
                                                       throws IOException

Specified by:

nextSegment in class org.apache.flink.runtime.memory.AbstractPagedOutputView

Throws:

IOException