edu.yale.cs.hadoopdb.benchmark
Class JoinTaskHDFS.Phase2Reduce

java.lang.Object
  org.apache.hadoop.mapred.MapReduceBase
      edu.yale.cs.hadoopdb.benchmark.JoinTaskHDFS.Phase2Reduce

All Implemented Interfaces:

java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

Enclosing class:

JoinTaskHDFS

 class JoinTaskHDFS.Phase2Reduce
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

Field Summary

protected org.apache.hadoop.io.Text	max_key
protected java.lang.Double	max_total_adRevenue
protected org.apache.hadoop.io.Text	max_val
protected org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>	output

Constructor Summary

JoinTaskHDFS.Phase2Reduce()

Method Summary

void	close()
void	reduce(org.apache.hadoop.io.Text key, java.util.Iterator<org.apache.hadoop.io.Text> values, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output, org.apache.hadoop.mapred.Reporter reporter)

Methods inherited from class org.apache.hadoop.mapred.MapReduceBase

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

Field Detail

max_key

protected org.apache.hadoop.io.Text max_key

max_total_adRevenue

protected java.lang.Double max_total_adRevenue

max_val

protected org.apache.hadoop.io.Text max_val

output

protected org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output

Constructor Detail

JoinTaskHDFS.Phase2Reduce

JoinTaskHDFS.Phase2Reduce()

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class org.apache.hadoop.mapred.MapReduceBase

Throws:

java.io.IOException

reduce

public void reduce(org.apache.hadoop.io.Text key,
                   java.util.Iterator<org.apache.hadoop.io.Text> values,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws java.io.IOException

Specified by:

reduce in interface org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

Throws:

java.io.IOException