/*
* 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 org.jgap.gp.function;
import org.jgap.*;
import org.jgap.gp.*;
import org.jgap.gp.impl.*;
import org.jgap.util.*;
/**
* The if-then construct with a dynamic number of children.
*
* @author Klaus Meffert
* @since 3.4
*/
public class IfDyn
extends CommandDynamicArity implements ICloneable {
/** String containing the CVS revision. Read out via reflection!*/
private final static String CVS_REVISION = "$Revision: 1.2 $";
public IfDyn(final GPConfiguration a_conf, Class a_returnType,
int a_arityInitial, int a_arityMin, int a_arityMax)
throws InvalidConfigurationException {
super(a_conf, a_arityInitial + 1, a_arityMin + 1, a_arityMax + 1,
a_returnType);
}
public String toString() {
String s = "if(&1) then (";
int size = size();
for (int i = 0; i < size; i++) {
s += "&" + (i + 2);
if (i < size - 1) {
s += ";";
}
}
return s + ")";
}
public boolean execute_boolean(ProgramChromosome c, int n, Object[] args) {
boolean x = c.execute_boolean(n, 0, args);
boolean value = false;
if (x) {
int size = size();
for (int i = 0; i < size; i++) {
value = c.execute_boolean(n, i + 1, args);
if (!value) {
x = false;
}
}
}
return value;
}
public void execute_void(ProgramChromosome c, int n, Object[] args) {
// System.out.println("Arity: " + getArity(null));
int x = c.execute_int(n, 0, args);
/**@todo add option for type of first child to constructor*/
if (x >= 0) {
int size = size();
for (int i = 0; i < size; i++) {
c.execute_void(n, i + 1, args);
}
}
}
/**
* 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 {
IfDyn result = new IfDyn(getGPConfiguration(), getReturnType(), getArity(null),
getArityMin(), getArityMax());
return result;
} catch (Exception ex) {
throw new CloneException(ex);
}
}
}