com.jidesoft.comparator
Class BooleanComparator

java.lang.Object
  com.jidesoft.comparator.BooleanComparator

All Implemented Interfaces:

java.util.Comparator

public class BooleanComparator
extends java.lang.Object
implements java.util.Comparator

Comparator for boolean type. This is a singleton class. Call getInstance() to get the comparator.

Constructor Summary

protected

BooleanComparator() Constructor.

Method Summary

int	compare(java.lang.Object o1, java.lang.Object o2) Compares two Booleans.
static BooleanComparator	getInstance() Returns BooleanComparator singleton.

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

BooleanComparator

protected BooleanComparator()

Constructor.

Has protected access to prevent other clients creating instances of the class ... it is stateless so we need only one instance.

Method Detail

getInstance

public static BooleanComparator getInstance()

Returns BooleanComparator singleton.

Returns:

an instance of BooleanComparator.

compare

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

Compares two Booleans. False is treated as being less than True.

Specified by:

compare in interface java.util.Comparator

Parameters:

o1 - the first object to be compared

o2 - the second object to be compared

Returns:

0 if a and b are equal, -1 if a is less than b, 1 if a is more than b