jdsl.core.ref
Class BigIntegerComparator

java.lang.Object
  |
  +--jdsl.core.ref.AbstractComparator
        |
        +--jdsl.core.ref.BigIntegerComparator

All Implemented Interfaces:

Comparator, EqualityComparator

public class BigIntegerComparator

extends AbstractComparator

implements Comparator

Compares java.math.BigInteger objects.

Version:

$Id: BigIntegerComparator.java,v 1.2 2001/11/27 17:56:13 lv Exp $

Author:

Benety Goh (bg@cs.brown.edu), Luca Vismara (lv)

Constructor Summary

BigIntegerComparator()

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

BigIntegerComparator

public BigIntegerComparator()

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

Following copied from interface: jdsl.core.api.Comparator

Parameters:

a - First Object to compare

b - Second Object to compare

Returns:

A negative value if a is less than b, 0 if they are equal, or a positive value if a is greater than b.

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

Following copied from interface: jdsl.core.api.EqualityComparator

Parameters:

o - Any java.lang.Object

Returns:

True if and only if this comparator may compare this object.