de.hpi.fgis.voidgen.hadoop.tasks.joining
Class Join1QuadrupleInputMapper

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by de.hpi.fgis.voidgen.hadoop.tasks.joining.Join1QuadrupleInputMapper
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,StringIntPair,RDFQuadruple>

public class Join1QuadrupleInputMapper
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,StringIntPair,RDFQuadruple>

Reads the input RDF quadruples an prepares them for joining with the cluster identifier of the nodes of the 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

Constructor Summary
Join1QuadrupleInputMapper()
           
 
Method Summary
 void map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapred.OutputCollector<StringIntPair,RDFQuadruple> output, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close, configure
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.apache.hadoop.mapred.JobConfigurable
configure
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

Join1QuadrupleInputMapper

public Join1QuadrupleInputMapper()
Method Detail

map

public void map(org.apache.hadoop.io.LongWritable key,
                org.apache.hadoop.io.Text value,
                org.apache.hadoop.mapred.OutputCollector<StringIntPair,RDFQuadruple> output,
                org.apache.hadoop.mapred.Reporter reporter)
         throws java.io.IOException
Specified by:
map in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,StringIntPair,RDFQuadruple>
Throws:
java.io.IOException