/*
* 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.terminal;
import org.jgap.*;
import org.jgap.gp.*;
import org.jgap.gp.impl.*;
/**
* A constant remaining the same value all time.
*
* @author Klaus Meffert
* @since 3.0
*/
public class Constant
extends MathCommand {
/** String containing the CVS revision. Read out via reflection!*/
private final static String CVS_REVISION = "$Revision: 1.7 $";
private Object m_value;
public Constant(final GPConfiguration a_conf, Class a_type, Object a_value)
throws InvalidConfigurationException {
this(a_conf, a_type, a_value, 0);
}
public Constant(final GPConfiguration a_conf, Class a_type, Object a_value,
int a_subReturnType)
throws InvalidConfigurationException {
super(a_conf, 0, a_type, a_subReturnType, null);
m_value = a_value;
}
public String toString() {
return m_value.toString();
}
/**
* @return textual name of this command
*
* @author Klaus Meffert
* @since 3.2
*/
public String getName() {
return "Constant";
}
public int execute_int(ProgramChromosome c, int n, Object[] args) {
return ( (Integer) m_value).intValue();
}
public long execute_long(ProgramChromosome c, int n, Object[] args) {
return ( (Long) m_value).intValue();
}
public float execute_float(ProgramChromosome c, int n, Object[] args) {
return ( (Float) m_value).floatValue();
}
public double execute_double(ProgramChromosome c, int n, Object[] args) {
return ( (Double) m_value).doubleValue();
}
public Object execute_object(ProgramChromosome c, int n, Object[] args) {
return m_value;
}
}