org.apache.flink.runtime.io.disk

Class RandomAccessOutputView

java.lang.Object

org.apache.flink.runtime.memory.AbstractPagedOutputView

org.apache.flink.runtime.io.disk.RandomAccessOutputView

All Implemented Interfaces:

DataOutput, DataOutputView, MemorySegmentWritable, SeekableDataOutputView

public class RandomAccessOutputView
extends AbstractPagedOutputView
implements SeekableDataOutputView

Field Summary

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

headerLength, segmentSize

Constructor Summary

Constructors

Constructor and Description
RandomAccessOutputView(MemorySegment[] segments, int segmentSize)
RandomAccessOutputView(MemorySegment[] segments, int segmentSize, int segmentSizeBits)

Method Summary

Modifier and Type	Method and Description
protected MemorySegment	nextSegment(MemorySegment current, int positionInCurrent) This method must return a segment.
void	setWritePosition(long position) Sets the write pointer to the given position.

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

Methods inherited from interface org.apache.flink.core.memory.DataOutputView

skipBytesToWrite, write

Methods inherited from interface java.io.DataOutput

write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Constructor Detail

RandomAccessOutputView

public RandomAccessOutputView(MemorySegment[] segments,
                              int segmentSize)

RandomAccessOutputView

public RandomAccessOutputView(MemorySegment[] segments,
                              int segmentSize,
                              int segmentSizeBits)

Method Detail

nextSegment

protected MemorySegment nextSegment(MemorySegment current,
                                    int positionInCurrent)
                             throws EOFException

Description copied from class: AbstractPagedOutputView

This method must return a segment. If no more segments are available, it must throw an EOFException.

Specified by:

nextSegment in class AbstractPagedOutputView

Parameters:

current - The current memory segment

positionInCurrent - The position in the segment, one after the last valid byte.

Returns:

The next memory segment.

Throws:

EOFException

setWritePosition

public void setWritePosition(long position)

Description copied from interface: SeekableDataOutputView

Sets the write pointer to the given position.

Specified by:

setWritePosition in interface SeekableDataOutputView

Parameters:

position - The new write position.