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

java.lang.Object
  extended byorg.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