edu.berkeley.guir.lib.collection
Class NumericalComparator

java.lang.Object
  |
  +--edu.berkeley.guir.lib.collection.NumericalComparator

All Implemented Interfaces:

Comparator

public class NumericalComparator

extends Object

implements Comparator

Compare Number objects.

This software is distributed under the Berkeley Software License.

 Revisions:  - GUIRLib-v1.0-1.0.0, Jun 16 1999, JH
               Created class
             - GUIRLib-v1.2-1.0.0, Jun 22 2000, JH
               Touched for GUIRLib release
             - GUIRLib-v1.3-1.0.0, Aug 11 2000, JH
               Touched for GUIRLib release
             - GUIRLib-v1.4-1.0.0, Aug 31 2000, JH
               Touched for GUIRLib release
 

Since:

JDK 1.2

Version:

GUIRLib-v1.4-1.0.0, Aug 31 2000

Author:

(jasonh@cs.berkeley.edu)

Constructor Summary

NumericalComparator()

Method Summary

int	compare(Object obj1, Object obj2)
void	setUsePerturbations(boolean flag) Add perturbations to the values or not? Basically, if set to true, we will add two different small values to each of the numbers before comparison, to avoid equal values.

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

NumericalComparator

public NumericalComparator()

Method Detail

setUsePerturbations

public void setUsePerturbations(boolean flag)

Add perturbations to the values or not? Basically, if set to true, we will add two different small values to each of the numbers before comparison, to avoid equal values.

Parameters:

flag - is true if perturbations are to be used, false otherwise.

compare

public int compare(Object obj1,
                   Object obj2)

Specified by:

compare in interface Comparator