org.apache.hadoop.examples.pi

Class DistSum.MapSide.PartitionInputFormat

java.lang.Object

org.apache.hadoop.mapreduce.InputFormat<NullWritable,SummationWritable>

org.apache.hadoop.examples.pi.DistSum.Machine.AbstractInputFormat

org.apache.hadoop.examples.pi.DistSum.MapSide.PartitionInputFormat

Enclosing class:

DistSum.MapSide

public static class DistSum.MapSide.PartitionInputFormat
extends DistSum.Machine.AbstractInputFormat

An InputFormat which partitions a summation

Constructor Summary

Constructors

Constructor and Description
DistSum.MapSide.PartitionInputFormat()

Method Summary

Methods

Modifier and Type	Method and Description
List<InputSplit>	getSplits(JobContext context) Partitions the summation into parts and then return them as splits

Methods inherited from class org.apache.hadoop.examples.pi.DistSum.Machine.AbstractInputFormat

createRecordReader

Methods inherited from class java.lang.Object

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

Constructor Detail

DistSum.MapSide.PartitionInputFormat

public DistSum.MapSide.PartitionInputFormat()

Method Detail

getSplits

public List<InputSplit> getSplits(JobContext context)

Partitions the summation into parts and then return them as splits

Specified by:

getSplits in class InputFormat<NullWritable,SummationWritable>

Parameters:

context - job configuration.

Returns:

an array of InputSplits for the job.