org.apache.commons.math.stat
Class Frequency.NaturalComparator

java.lang.Object
  org.apache.commons.math.stat.Frequency.NaturalComparator

All Implemented Interfaces:

java.util.Comparator

Enclosing class:

Frequency

private static class Frequency.NaturalComparator
extends java.lang.Object
implements java.util.Comparator

A Comparator that compares comparable objects using the natural order. Copied from Commons Collections ComparableComparator.

Constructor Summary

private

Frequency.NaturalComparator()

Method Summary

int	compare(java.lang.Object o1, java.lang.Object o2) Compare the two Comparable arguments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

Frequency.NaturalComparator

private Frequency.NaturalComparator()

Method Detail

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

Compare the two Comparable arguments. This method is equivalent to:

((Comparable)o1).compareTo(o2)

Specified by:

compare in interface java.util.Comparator

Parameters:

o1 - the first object

o2 - the second object

Returns:

result of comparison

Throws:

java.lang.NullPointerException - when o1 is null, or when ((Comparable)o1).compareTo(o2) does

java.lang.ClassCastException - when o1 is not a Comparable, or when ((Comparable)o1).compareTo(o2) does