com.intel.hadoop.graphbuilder.preprocess.mapreduce
Class EdgeTransformReducer<VidType extends org.apache.hadoop.io.WritableComparable<VidType>>

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by com.intel.hadoop.graphbuilder.preprocess.mapreduce.EdgeTransformReducer<VidType>
Type Parameters:
VidType -
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<VidType,PairListType,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

public class EdgeTransformReducer<VidType extends org.apache.hadoop.io.WritableComparable<VidType>>
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<VidType,PairListType,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

The Reduce functional computes a sufficient statistics on a list of edges, and the Apply functional applies it back to each edge in the list.


Constructor Summary
EdgeTransformReducer()
           
 
Method Summary
 void configure(org.apache.hadoop.mapred.JobConf job)
           
 void reduce(VidType key, java.util.Iterator<PairListType> values, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> out, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

EdgeTransformReducer

public EdgeTransformReducer()
Method Detail

configure

public void configure(org.apache.hadoop.mapred.JobConf job)
Specified by:
configure in interface org.apache.hadoop.mapred.JobConfigurable
Overrides:
configure in class org.apache.hadoop.mapred.MapReduceBase

reduce

public void reduce(VidType key,
                   java.util.Iterator<PairListType> values,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> out,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws java.io.IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<VidType extends org.apache.hadoop.io.WritableComparable<VidType>,PairListType,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
Throws:
java.io.IOException