jmetal.util.comparators
Class ObjectiveComparator

java.lang.Object
  jmetal.util.comparators.ObjectiveComparator

All Implemented Interfaces:

java.util.Comparator

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

This class implements a Comparator (a method for comparing Solution objects) based on a objective values.

Constructor Summary

ObjectiveComparator(int nObj)
Constructor.

ObjectiveComparator(int nObj, boolean descendingOrder)

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

ObjectiveComparator

public ObjectiveComparator(int nObj)

Constructor.

Parameters:

nObj - The index of the objective to compare

ObjectiveComparator

public ObjectiveComparator(int nObj,
                           boolean descendingOrder)

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.