jmetal.util.comparators
Class EpsilonObjectiveComparator

java.lang.Object
  jmetal.util.comparators.EpsilonObjectiveComparator

All Implemented Interfaces:

java.util.Comparator

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

This class implements a Comparator (a method for comparing Solution objects) based on epsilon dominance over a given objective function.

Constructor Summary

EpsilonObjectiveComparator(int nObj, double eta)
Constructor.

Method Summary

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

EpsilonObjectiveComparator

public EpsilonObjectiveComparator(int nObj,
                                  double eta)

Constructor.

Parameters:

nObj - Index of the objective to compare.

eta - Value for epsilon-dominance.

Method Detail

compare

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

Compares 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.