org.evolvica.core.eval
Class AbstractFitnessComparator

java.lang.Object
  org.evolvica.core.eval.AbstractIndividualComparator
      org.evolvica.core.eval.AbstractFitnessComparator

All Implemented Interfaces:

java.util.Comparator, IFitnessComparator, IIndividualComparator

public abstract class AbstractFitnessComparator

extends AbstractIndividualComparator

implements IFitnessComparator

Abstract base class for individual comparators that compare by fitness.

Since:

0.4.0

Version:

$Revision: 1.5 $ $Date: 2004/05/26 11:58:00 $

Author:

Andreas Rummler

Constructor Summary

AbstractFitnessComparator()

Method Summary

abstract int	compare(IFitness fitness0, IFitness fitness1) Compares two fitness values.
int	compare(IIndividual i0, IIndividual i1) Compares two individuals.

Methods inherited from class org.evolvica.core.eval.AbstractIndividualComparator

compare

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

compare, equals

Constructor Detail

AbstractFitnessComparator

public AbstractFitnessComparator()

Method Detail

compare

public int compare(IIndividual i0,
                   IIndividual i1)

Description copied from interface: IIndividualComparator

Compares two individuals. This method compares two individuals and returns the following result: a number smaller than 0 if the individual is better than the second one, 0 if both individual are equal in terms of their quality and a number greater than 0 if the second one is better.

Specified by:

compare in interface IIndividualComparator

Specified by:

compare in class AbstractIndividualComparator

See Also:

IIndividualComparator.compare(org.evolvica.core.IIndividual, org.evolvica.core.IIndividual)

compare

public abstract int compare(IFitness fitness0,
                            IFitness fitness1)

Description copied from interface: IFitnessComparator

Compares two fitness values.

Specified by:

compare in interface IFitnessComparator

Parameters:

fitness0 - first fitness

fitness1 - second fitness

Returns:

-1 if the first fitness value is better than the second one, 0 if both fitness values are equal, 1 otherwise

See Also:

IFitnessComparator.compare(org.evolvica.core.IFitness, org.evolvica.core.IFitness)