de.hpi.fgis.voidgen.hadoop.closure
Class Step2Reducer

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Reducer<Step2Pair,NodeXOrId,ClusterId,NodeXOrId>
      extended by de.hpi.fgis.voidgen.hadoop.closure.Step2Reducer

public class Step2Reducer
extends org.apache.hadoop.mapreduce.Reducer<Step2Pair,NodeXOrId,ClusterId,NodeXOrId>

The reducer for merging clusters together which describe the same cluster.

Author:
Johannes Gosda, Hasso Plattner Institute at University of Potsdam, Germany

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer
org.apache.hadoop.mapreduce.Reducer.Context
 
Constructor Summary
Step2Reducer()
           
 
Method Summary
 void reduce(Step2Pair key, java.lang.Iterable<NodeXOrId> values, org.apache.hadoop.mapreduce.Reducer.Context context)
           
 void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Reducer
cleanup, run
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Step2Reducer

public Step2Reducer()
Method Detail

setup

public void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
Overrides:
setup in class org.apache.hadoop.mapreduce.Reducer<Step2Pair,NodeXOrId,ClusterId,NodeXOrId>

reduce

public void reduce(Step2Pair key,
                   java.lang.Iterable<NodeXOrId> values,
                   org.apache.hadoop.mapreduce.Reducer.Context context)
            throws java.io.IOException,
                   java.lang.InterruptedException
Overrides:
reduce in class org.apache.hadoop.mapreduce.Reducer<Step2Pair,NodeXOrId,ClusterId,NodeXOrId>
Throws:
java.io.IOException
java.lang.InterruptedException