org.apache.hadoop.mapred.lib.aggregate
Class ValueHistogram

java.lang.Object
  extended by org.apache.hadoop.mapreduce.lib.aggregate.ValueHistogram
      extended by org.apache.hadoop.mapred.lib.aggregate.ValueHistogram
All Implemented Interfaces:
ValueAggregator<String>

@InterfaceAudience.Public
@InterfaceStability.Stable
public class ValueHistogram
extends ValueHistogram
implements ValueAggregator<String>

This class implements a value aggregator that computes the histogram of a sequence of strings.


Constructor Summary
ValueHistogram()
           
 
Method Summary
 
Methods inherited from class org.apache.hadoop.mapreduce.lib.aggregate.ValueHistogram
addNextValue, getCombinerOutput, getReport, getReportDetails, getReportItems, reset
 
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.mapreduce.lib.aggregate.ValueAggregator
addNextValue, getCombinerOutput, getReport, reset
 

Constructor Detail

ValueHistogram

public ValueHistogram()


Copyright © 2014 Apache Software Foundation. All Rights Reserved.