edu.umd.cloud9.mapreduce

Class NullMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

edu.umd.cloud9.mapreduce.NullMapper

public abstract class NullMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor and Description
NullMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	run(org.apache.hadoop.mapreduce.Mapper.Context context)
abstract void	runSafely(org.apache.hadoop.mapreduce.Mapper.Context context)

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

cleanup, map, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

NullMapper

public NullMapper()

Method Detail

run

public void run(org.apache.hadoop.mapreduce.Mapper.Context context)

Overrides:

run in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

runSafely

public abstract void runSafely(org.apache.hadoop.mapreduce.Mapper.Context context)