interface Replacement

Hi, I think it is necessary to add an input parameter, sizeOfTheResultingSolutionList , to the replace function below, so that the algorithm designer can operate more flexibly.

package org.uma.jmetal.component.replacement;

import org.uma.jmetal.solution.Solution;

import java.util.List;

@FunctionalInterface
public interface Replacement<S extends Solution<?>> {
  enum RemovalPolicy {sequential, oneShot}
  List<S> replace(List<S> currentList, List<S> offspringList) ;
}

[ajnebro]

I see the issue. The point is that I’m assuming the default case in which the size of the population in the next generation is the same as the size of the population passed as the first parameter to the replace() method.

Adding the parameter you need to the `RankingAndDensityEstimatorReplacement() is easy; just let me think about it. On the one hand, I dislike needing to add classes such as the one you mention but, on the other hand, I don’t want to make the existing class more complex than necessary.

[ajnebro]

Hi @dongzhiming. Thanks for your comment. That parameter is not included in the replace() method because it is not always needed (see for example the RankingAndDensityEstimatorReplacement() class) and anyway it can be a parameter of the constructor of the replacement class (as done in class MOEADReplacement()).

If you find a situation where this last approach does not work, please let me know.

Antonio