org.apache.jena.hadoop.rdf.mapreduce

Class ValuePlusNullMapper<TKey,TValue>

java.lang.Object

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

org.apache.jena.hadoop.rdf.mapreduce.ValuePlusNullMapper<TKey,TValue>

Type Parameters:

TKey - Key type

TValue - Value type

public class ValuePlusNullMapper<TKey,TValue>
extends org.apache.hadoop.mapreduce.Mapper<TKey,TValue,TValue,org.apache.hadoop.io.NullWritable>

A mapper which discards the key replacing it with the value and nulls out the value

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
ValuePlusNullMapper()

Method Summary

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

run

Methods inherited from class java.lang.Object

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

Constructor Detail

ValuePlusNullMapper

public ValuePlusNullMapper()