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

java.lang.Object
  org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,SummationWritable>
      org.apache.hadoop.examples.pi.DistSum.Machine.AbstractInputFormat

Direct Known Subclasses:

DistSum.MapSide.PartitionInputFormat, DistSum.ReduceSide.SummationInputFormat

Enclosing class:

DistSum.Machine

public abstract static class DistSum.Machine.AbstractInputFormat
extends org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,SummationWritable>

An abstract InputFormat for the jobs

Constructor Summary

DistSum.Machine.AbstractInputFormat()

Method Summary

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,SummationWritable>

createRecordReader(org.apache.hadoop.mapreduce.InputSplit generic, org.apache.hadoop.mapreduce.TaskAttemptContext context) Specify how to read the records

Methods inherited from class org.apache.hadoop.mapreduce.InputFormat

getSplits

Methods inherited from class java.lang.Object

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

Constructor Detail

DistSum.Machine.AbstractInputFormat

public DistSum.Machine.AbstractInputFormat()

Method Detail

createRecordReader

public final org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,SummationWritable> createRecordReader(org.apache.hadoop.mapreduce.InputSplit generic,
                                                                                                                              org.apache.hadoop.mapreduce.TaskAttemptContext context)

Specify how to read the records

Specified by:

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