org.apache.jena.hadoop.rdf.mapreduce.group

Class TripleGroupByPredicateMapper<TKey>

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<TKey,T,NodeWritable,T>

org.apache.jena.hadoop.rdf.mapreduce.group.AbstractNodeTupleGroupingMapper<TKey,Triple,TripleWritable>

org.apache.jena.hadoop.rdf.mapreduce.group.AbstractTripleGroupingMapper<TKey>

org.apache.jena.hadoop.rdf.mapreduce.group.TripleGroupByPredicateMapper<TKey>

Type Parameters:

TKey - Key type

public class TripleGroupByPredicateMapper<TKey>
extends AbstractTripleGroupingMapper<TKey>

A mapper which assists in grouping triples by predicate by reassigning their keys to be their predicates

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
TripleGroupByPredicateMapper()

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

TripleGroupByPredicateMapper

public TripleGroupByPredicateMapper()