Package 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

Constructors

Constructor	Description
AbstractInputFormat()

Method Summary

Modifier and Type	Method	Description
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

AbstractInputFormat

public 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>