de.hpi.fgis.voidgen.hadoop.tasks.clusterinformation
Class ClusterInfoPatternStep1Mapper
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<RDFQuadruple,org.apache.hadoop.io.NullWritable,StringIntPair,org.apache.hadoop.io.Text>
de.hpi.fgis.voidgen.hadoop.tasks.clusterinformation.ClusterInfoPatternStep1Mapper
public class ClusterInfoPatternStep1Mapper
- extends org.apache.hadoop.mapreduce.Mapper<RDFQuadruple,org.apache.hadoop.io.NullWritable,StringIntPair,org.apache.hadoop.io.Text>
Outputs for subject and object of each quadruple
each URL part of subject and object URL.
Input
- Key: ignored
- Value: RDF quadruple with subject and object cluster set
Output
- Key: a pair of
cluster identifier
position of the URL part
- Value: URL part
- 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 classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
org.apache.hadoop.mapreduce.Mapper.Context |
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 |
ClusterInfoPatternStep1Mapper
public ClusterInfoPatternStep1Mapper()
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,StringIntPair,org.apache.hadoop.io.Text>
- Throws:
java.io.IOException
java.lang.InterruptedException