jdsl.core.ref
Class IntegerComparator

java.lang.Object
  |
  +--jdsl.core.ref.AbstractComparator
        |
        +--jdsl.core.ref.IntegerComparator
All Implemented Interfaces:
Comparator, EqualityComparator

public class IntegerComparator
extends AbstractComparator
implements Comparator

Compares java.lang.Integers.

Version:
$Id: IntegerComparator.java,v 1.5 2001/11/27 17:56:13 lv Exp $
Author:
Benoit Hudson (bh), Luca Vismara (lv)

Constructor Summary
IntegerComparator()
           
 
Method Summary
 int compare(java.lang.Object x1, java.lang.Object x2)
          A C-style comparison function that returns a negative value if the first object is less than the second, a positive value if the second object is less, and 0 if the two objects are equal.
 boolean isComparable(java.lang.Object o)
          Allows a container (or any client) to find out whether an object is a member of the ordered set over which this comparator is defined.
 
Methods inherited from class jdsl.core.ref.AbstractComparator
isEqualTo, isGreaterThan, isGreaterThanOrEqualTo, isLessThan, isLessThanOrEqualTo
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface jdsl.core.api.Comparator
isGreaterThan, isGreaterThanOrEqualTo, isLessThan, isLessThanOrEqualTo
 
Methods inherited from interface jdsl.core.api.EqualityComparator
isEqualTo
 

Constructor Detail

IntegerComparator

public IntegerComparator()
Method Detail

compare

public int compare(java.lang.Object x1,
                   java.lang.Object x2)
            throws java.lang.ClassCastException
Description copied from interface: Comparator
A C-style comparison function that returns a negative value if the first object is less than the second, a positive value if the second object is less, and 0 if the two objects are equal.
Specified by:
compare in interface Comparator
Overrides:
compare in class AbstractComparator
Returns:
a negative value if x1 < x2, zero if x1 == x2, and a positive value if x1 > x2

isComparable

public boolean isComparable(java.lang.Object o)
Description copied from interface: EqualityComparator
Allows a container (or any client) to find out whether an object is a member of the ordered set over which this comparator is defined.
Specified by:
isComparable in interface EqualityComparator
Parameters:
o - Object you propose to compare with this comparator
Returns:
Whether o is a non-null java.lang.Integer