edu.yale.cs.hadoopdb.benchmark
Class AggTaskSmallDB.Reduce

java.lang.Object
  org.apache.hadoop.mapred.MapReduceBase
      edu.yale.cs.hadoopdb.benchmark.AggTaskSmallDB.Reduce

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.DoubleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable>

Enclosing class:

AggTaskSmallDB

public static class AggTaskSmallDB.Reduce
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable>

Field Summary

protected org.apache.hadoop.io.DoubleWritable

outputValue

Constructor Summary

AggTaskSmallDB.Reduce()

Method Summary

void	reduce(org.apache.hadoop.io.Text key, java.util.Iterator<org.apache.hadoop.io.DoubleWritable> values, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable> 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

Field Detail

outputValue

protected org.apache.hadoop.io.DoubleWritable outputValue

Constructor Detail

AggTaskSmallDB.Reduce

public AggTaskSmallDB.Reduce()

Method Detail

reduce

public void reduce(org.apache.hadoop.io.Text key,
                   java.util.Iterator<org.apache.hadoop.io.DoubleWritable> values,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable> 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.DoubleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable>

Throws:

java.io.IOException