ValueHistogram (Apache Hadoop Main 3.5.0 API)
Description: declaration: package: org.apache.hadoop.mapred.lib.aggregate, class: ValueHistogram

Package org.apache.hadoop.mapred.lib.aggregate

# Class ValueHistogram

java.lang.Object
org.apache.hadoop.mapreduce.lib.aggregate.ValueHistogram
org.apache.hadoop.mapred.lib.aggregate.ValueHistogram

All Implemented Interfaces:
  `ValueAggregator<String>`, `ValueAggregator<String>`

@Public @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

  Constructors
  Constructor
  Description
  `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 Details

  - ### ValueHistogram

    public ValueHistogram()