org.apache.hadoop.mapreduce.split

Class JobSplit.SplitMetaInfo

java.lang.Object

org.apache.hadoop.mapreduce.split.JobSplit.SplitMetaInfo

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Enclosing class:

JobSplit

public static class JobSplit.SplitMetaInfo
extends java.lang.Object
implements org.apache.hadoop.io.Writable

This represents the meta information about the task split. The main fields are - start offset in actual split - data length that will be processed in this split - hosts on which this split is local

Constructor Summary

Constructors

Constructor and Description
JobSplit.SplitMetaInfo()
JobSplit.SplitMetaInfo(InputSplit split, long startOffset)
JobSplit.SplitMetaInfo(java.lang.String[] locations, long startOffset, long inputDataLength)

Method Summary

Methods

Modifier and Type	Method and Description
long	getInputDataLength()
java.lang.String[]	getLocations()
long	getStartOffset()
void	readFields(java.io.DataInput in)
void	setInputDataLength(long length)
void	setInputDataLocations(java.lang.String[] locations)
java.lang.String	toString()
void	write(java.io.DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

JobSplit.SplitMetaInfo

public JobSplit.SplitMetaInfo()

JobSplit.SplitMetaInfo

public JobSplit.SplitMetaInfo(java.lang.String[] locations,
                      long startOffset,
                      long inputDataLength)

JobSplit.SplitMetaInfo

public JobSplit.SplitMetaInfo(InputSplit split,
                      long startOffset)
                       throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getLocations

public java.lang.String[] getLocations()

getStartOffset

public long getStartOffset()

getInputDataLength

public long getInputDataLength()

setInputDataLocations

public void setInputDataLocations(java.lang.String[] locations)

setInputDataLength

public void setInputDataLength(long length)

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

java.io.IOException

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object