org.apache.hadoop.mapred

Class FadvisedFileRegion

java.lang.Object

org.jboss.netty.channel.DefaultFileRegion

org.apache.hadoop.mapred.FadvisedFileRegion

All Implemented Interfaces:

org.jboss.netty.channel.FileRegion, org.jboss.netty.util.ExternalResourceReleasable

public class FadvisedFileRegion
extends org.jboss.netty.channel.DefaultFileRegion

Constructor Summary

Constructors

Constructor and Description
FadvisedFileRegion(RandomAccessFile file, long position, long count, boolean manageOsCache, int readaheadLength, org.apache.hadoop.io.ReadaheadPool readaheadPool, String identifier)

Method Summary

Methods

Modifier and Type	Method and Description
void	releaseExternalResources()
long	transferTo(WritableByteChannel target, long position)

Methods inherited from class org.jboss.netty.channel.DefaultFileRegion

getCount, getPosition, releaseAfterTransfer

Methods inherited from class java.lang.Object

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

Constructor Detail

FadvisedFileRegion

public FadvisedFileRegion(RandomAccessFile file,
                  long position,
                  long count,
                  boolean manageOsCache,
                  int readaheadLength,
                  org.apache.hadoop.io.ReadaheadPool readaheadPool,
                  String identifier)
                   throws IOException

Throws:

IOException

Method Detail

transferTo

public long transferTo(WritableByteChannel target,
              long position)
                throws IOException

Specified by:

transferTo in interface org.jboss.netty.channel.FileRegion

Overrides:

transferTo in class org.jboss.netty.channel.DefaultFileRegion

Throws:

IOException

releaseExternalResources

public void releaseExternalResources()

Specified by:

releaseExternalResources in interface org.jboss.netty.util.ExternalResourceReleasable

Overrides:

releaseExternalResources in class org.jboss.netty.channel.DefaultFileRegion