jmetal.util.comparators
Class CrowdingComparator

java.lang.Object
  extended by jmetal.util.comparators.CrowdingComparator
All Implemented Interfaces:
java.util.Comparator

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

This class implements a Comparator (a method for comparing Solution objects) based on the crowding distance, as in NSGA-II.


Constructor Summary
CrowdingComparator()
           
 
Method Summary
 int compare(java.lang.Object o1, java.lang.Object o2)
          Compare two solutions.
 
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

CrowdingComparator

public CrowdingComparator()
Method Detail

compare

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

Specified by:
compare in interface java.util.Comparator
Parameters:
o1 - Object representing the first Solution.
o2 - Object representing the second Solution.
Returns:
-1, or 0, or 1 if o1 is less than, equal, or greater than o2, respectively.