org.apache.commons.math.stat
Class Frequency.NaturalComparator<T extends java.lang.Comparable<T>>

java.lang.Object
  org.apache.commons.math.stat.Frequency.NaturalComparator<T>

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<java.lang.Comparable<T>>

Enclosing class:

Frequency

private static class Frequency.NaturalComparator<T extends java.lang.Comparable<T>>
extends java.lang.Object
implements java.util.Comparator<java.lang.Comparable<T>>, java.io.Serializable

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

Field Summary

private static long

serialVersionUID Serializable version identifier

Constructor Summary

private

Frequency.NaturalComparator()

Method Summary

int	compare(java.lang.Comparable<T> o1, java.lang.Comparable<T> 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

Field Detail

serialVersionUID

private static final long serialVersionUID

Serializable version identifier

See Also:

Constant Field Values

Constructor Detail

Frequency.NaturalComparator

private Frequency.NaturalComparator()

Method Detail

compare

public int compare(java.lang.Comparable<T> o1,
                   java.lang.Comparable<T> o2)

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

((Comparable)o1).compareTo(o2)

Specified by:

compare in interface java.util.Comparator<java.lang.Comparable<T extends java.lang.Comparable<T>>>

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