Package org.uma.jmetal.util.comparator

Class RankingAndCrowdingDistanceComparator<S extends Solution<?>>

java.lang.Object

org.uma.jmetal.util.comparator.RankingAndCrowdingDistanceComparator<S>

All Implemented Interfaces:

Serializable, Comparator<S>

public class RankingAndCrowdingDistanceComparator<S extends Solution<?>>
extends Object
implements Comparator<S>, Serializable

Version:

1.0

This class implements a comparator based on the rank of the solutions; if the rank is the same then the crowding distance is used.

Author:

Antonio J. Nebro <antonio@lcc.uma.es>

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
RankingAndCrowdingDistanceComparator()
RankingAndCrowdingDistanceComparator(Ranking<S> ranking)

Method Summary

Modifier and Type	Method	Description
int	compare(S solution1, S solution2)	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, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

RankingAndCrowdingDistanceComparator

public RankingAndCrowdingDistanceComparator(Ranking<S> ranking)

RankingAndCrowdingDistanceComparator

public RankingAndCrowdingDistanceComparator()

Method Details

compare

public int compare(S solution1,
 S solution2)

Compares two solutions.

Specified by:

compare in interface Comparator<S extends Solution<?>>

Parameters:

solution1 - Object representing the first solution

solution2 - Object representing the second solution.

Returns:

-1, or 0, or 1 if solution1 is less than, equal, or greater than solution2, respectively.