structure
Class ReverseComparator

java.lang.Object
  structure.ReverseComparator

All Implemented Interfaces:

Comparator

public class ReverseComparator
extends Object
implements Comparator

Constructor Summary

ReverseComparator()
Construct a comparator that generates reverse natural comparison

ReverseComparator(Comparator base)
Construct a comparator that generates reverse of another comparator

Method Summary

int	compare(Object a, Object b) Compare two values, a and b.
boolean	equals(Object b) Returns true if the other object is a NaturalComparator.

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReverseComparator

public ReverseComparator()

Construct a comparator that generates reverse natural comparison

ReverseComparator

public ReverseComparator(Comparator base)

Construct a comparator that generates reverse of another comparator

Parameters:

base - the ordering to be reversed

Method Detail

compare

public int compare(Object a,
                   Object b)

Compare two values, a and b. Simply calls the default compareTo method for a on b.

Specified by:

compare in interface Comparator

Parameters:

a - object performing the compare

b - the object being compared

Returns:

value <, ==, > 0 if a <, ==, > b using a.compareTo

equals

public boolean equals(Object b)

Returns true if the other object is a NaturalComparator.

Specified by:

equals in interface Comparator

Overrides:

equals in class Object

Parameters:

b - a possible NaturalComparator

Returns:

true if b is a NaturalComparator