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

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

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

Swapping key and value of the clustering output and adapt the format to further steps.

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
ClusterInputMapper()
           
 
Method Summary
 void map(org.apache.hadoop.io.Text 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

ClusterInputMapper

public ClusterInputMapper()
Method Detail

map

public void map(org.apache.hadoop.io.Text 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.Text,org.apache.hadoop.io.Text,StringIntPair,RDFQuadruple>
Throws:
java.io.IOException