org.apache.hadoop.mapred
Interface InputSplit

All Superinterfaces:

Writable

All Known Implementing Classes:

FileSplit

public interface InputSplit
extends Writable

The description of the data for a single map task.

Author:

Owen O'Malley

Method Summary

long	getLength() Get the number of input bytes in the split.
String[]	getLocations() Get the list of hostnames where the input split is located.

Methods inherited from interface org.apache.hadoop.io.Writable

readFields, write

Method Detail

getLength

long getLength()
               throws IOException

Get the number of input bytes in the split.

Returns:

the number of bytes in the input split

Throws:

IOException

getLocations

String[] getLocations()
                      throws IOException

Get the list of hostnames where the input split is located.

Returns:

A list of prefered hostnames

Throws:

IOException