org.uma.jmetal.util.comparator

Class ObjectiveComparator

java.lang.Object

org.uma.jmetal.util.comparator.ObjectiveComparator

All Implemented Interfaces:

Comparator<Solution>

public class ObjectiveComparator
extends Object
implements Comparator<Solution>

Version:

1.0 This class implements a comparator based on a given objective

Author:

Antonio J. Nebro

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ObjectiveComparator.Ordering

Constructor Summary

Constructors

Constructor and Description
ObjectiveComparator(int objectiveId) Constructor.
ObjectiveComparator(int objectiveId, ObjectiveComparator.Ordering order) Comparator.

Method Summary

Modifier and Type	Method and Description
int	compare(Solution solution1, Solution solution2) Compares two solutions according to a given objective.

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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

ObjectiveComparator

public ObjectiveComparator(int objectiveId)

Constructor.

Parameters:

objectiveId - The index of the objective to compare

ObjectiveComparator

public ObjectiveComparator(int objectiveId,
                           ObjectiveComparator.Ordering order)

Comparator.

Parameters:

objectiveId - The index of the objective to compare

order - Ascending or descending order

Method Detail

compare

public int compare(Solution solution1,
                   Solution solution2)

Compares two solutions according to a given objective.

Specified by:

compare in interface Comparator<Solution>

Parameters:

solution1 - The first solution

solution2 - The second solution

Returns:

-1, or 0, or 1 if solution1 is less than, equal, or greater than solution2, respectively, according to the established order