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

java.lang.Object
  org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.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

DistSum.MapSide.PartitionInputFormat()

Method Summary

List<org.apache.hadoop.mapreduce.InputSplit>

getSplits(org.apache.hadoop.mapreduce.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<org.apache.hadoop.mapreduce.InputSplit> getSplits(org.apache.hadoop.mapreduce.JobContext context)

Partitions the summation into parts and then return them as splits

Specified by:

getSplits in class org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,SummationWritable>