/*
* This file is part of JGAP.
*
* JGAP offers a dual license model containing the LGPL as well as the MPL.
*
* For licensing information please see the file license.txt included with JGAP
* or have a look at the top of class org.jgap.Chromosome which representatively
* includes the JGAP license policy applicable for any file delivered with JGAP.
*/
package examples.gp.symbolicRegression;
import org.jgap.*;
import org.jgap.gp.*;
import org.jgap.gp.impl.*;
import org.jgap.util.*;
/**
* The boolean or operation.
*
* @author Klaus Meffert
* @since 3.5
*/
public class OrD
extends MathCommand implements IMutateable, ICloneable {
/** String containing the CVS revision. Read out via reflection!*/
private final static String CVS_REVISION = "$Revision: 1.1 $";
public OrD(final GPConfiguration a_conf)
throws InvalidConfigurationException {
super(a_conf, 2, CommandGene.DoubleClass);
}
public CommandGene applyMutation(int index, double a_percentage)
throws InvalidConfigurationException {
CommandGene mutant;
if (a_percentage < 0.5d) {
mutant = new XorD(getGPConfiguration());
}
else {
mutant = new AndD(getGPConfiguration());
}
return mutant;
}
public String toString() {
return "&1 || &2";
}
/**
* @return textual name of this command
*
* @author Klaus Meffert
* @since 3.2
*/
public String getName() {
return "OrD";
}
public double execute_double(ProgramChromosome c, int n, Object[] args) {
double d1 = c.execute_double(n, 0, args);
double d2 = c.execute_double(n, 1, args);
boolean b1 = true;
boolean b2 = true;
if (d1 < 1.0d) {
b1 = false;
}
if (d2 < 1.0d) {
b2 = false;
}
if (b1 | b2) {
return 1.0d;
}
return 0.0d;
}
/**
* Clones the object. Simple and straight forward implementation here.
*
* @return cloned instance of this object
*
* @author Klaus Meffert
* @since 3.4
*/
public Object clone() {
try {
OrD result = new OrD(getGPConfiguration());
return result;
} catch (Exception ex) {
throw new CloneException(ex);
}
}
}