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The James core module is part of the James framework for optimization using local search metaheuristics in Java. The core contains general components to model problems, objectives and constraints, as well as generic algorithms to solve the problems. Moreover, the core provides implementations of specific utilities for subset selection.

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//  Copyright 2014 Herman De Beukelaer
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.

package org.jamesframework.core.search.listeners;

import org.jamesframework.core.problems.solutions.Solution;
import org.jamesframework.core.search.LocalSearch;

/**
 * An empty local search listener contains empty implementations of all methods in {@link LocalSearchListener},
 * acting as an easy entry point for custom search listeners which desire to listen only to a subset of events fired
 * by a search, by overriding the corresponding empty implementations.
 * 
 * @param  solution type, required to extend {@link Solution}
 * @author Herman De Beukelaer
 */
public class EmptyLocalSearchListener
                                extends EmptySearchListener
                                implements LocalSearchListener {

    @Override
    public void modifiedCurrentSolution(LocalSearch search,
                                        SolutionType newCurrentSolution,
                                        double newCurrentSolutionEvaluation) {
    }
    
}