es.udc.gii.common.eaf.plugin.parameter.Constant.java Source code

Introduction

Here is the source code for es.udc.gii.common.eaf.plugin.parameter.Constant.java

Source

/*
* Copyright (C) 2010 Grupo Integrado de Ingeniera
* 
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package es.udc.gii.common.eaf.plugin.parameter;

import org.apache.commons.configuration.Configuration;
import es.udc.gii.common.eaf.algorithm.EvolutionaryAlgorithm;

/**
 * A plugin that represents a constant value. <p/>
 *
 * Configuration:
 * <pre>
 * <Value>v</Value>
 * </pre>
 *
 * This configures a constant with value v.
 * 
 * @author Grupo Integrado de Ingeniera (<a href="http://www.gii.udc.es">www.gii.udc.es</a>)
 * @since 1.0
 */
public class Constant extends Parameter {
    private double value;

    public Constant(double value) {
        this.value = value;
    }

    public Constant() {
        value = 0.5;
    }

    @Override
    public void configure(Configuration conf) {
        if (conf.containsKey("Value")) {
            this.value = conf.getDouble("Value");
        }
    }

    @Override
    public double get(EvolutionaryAlgorithm algorithm) {
        return this.value;
    }

}