de.hpi.fgis.voidgen.hadoop.tasks.linksets
Class LinkSetsMapper

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<RDFQuadruple,org.apache.hadoop.io.NullWritable,StringStringPair,org.apache.hadoop.io.IntWritable>
      extended by de.hpi.fgis.voidgen.hadoop.tasks.linksets.LinkSetsMapper

public class LinkSetsMapper
extends org.apache.hadoop.mapreduce.Mapper<RDFQuadruple,org.apache.hadoop.io.NullWritable,StringStringPair,org.apache.hadoop.io.IntWritable>

Outputs each pair of subject cluster and object cluster from RDF quadruples.

Input

Output

Author:
Dandy Fenz, Hasso Plattner Institute at University of Potsdam, Germany, Matthias Pohl, Hasso Plattner Institute at University of Potsdam, Germany, Johannes Gosda, Hasso Plattner Institute at University of Potsdam, Germany

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
org.apache.hadoop.mapreduce.Mapper.Context
 
Constructor Summary
LinkSetsMapper()
           
 
Method Summary
 void map(RDFQuadruple key, org.apache.hadoop.io.NullWritable value, org.apache.hadoop.mapreduce.Mapper.Context context)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
cleanup, run, setup
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LinkSetsMapper

public LinkSetsMapper()
Method Detail

map

public void map(RDFQuadruple key,
                org.apache.hadoop.io.NullWritable value,
                org.apache.hadoop.mapreduce.Mapper.Context context)
         throws java.io.IOException,
                java.lang.InterruptedException
Overrides:
map in class org.apache.hadoop.mapreduce.Mapper<RDFQuadruple,org.apache.hadoop.io.NullWritable,StringStringPair,org.apache.hadoop.io.IntWritable>
Throws:
java.io.IOException
java.lang.InterruptedException