gpsys.primitives
Class True

java.lang.Object
  |
  +--gpsys.Primitive
        |
        +--gpsys.Terminal
              |
              +--gpsys.primitives.True

public class True

extends Terminal

	BOOLEAN True
 

True is a Terminal of Type BOOLEAN. It represents the boolean value true.

Version:

$Revision: 1.1 $, $Date: 2000/07/05 16:24:33 $

Author:

Adil Qureshi

Department of Computer Science,

University College London,

Gower St,

London WC1E 6BT,

UK.

See Also:

Type, Primitive, Terminal, Serialized Form

Fields inherited from class gpsys.Primitive

type

Constructor Summary

True()
Constructs a new True object.

Method Summary

boolean	evaluateBoolean(Individual i) Evaluates the True Terminal.
Primitive	instance() Creates a copy of this Terminal.
java.lang.String	toString() Creates a String representing this Terminal.

Methods inherited from class gpsys.Terminal

evaluateByte, evaluateChar, evaluateDouble, evaluateFloat, evaluateInt, evaluateLong, evaluateObject, evaluateShort

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait

Constructor Detail

True

public True()

Constructs a new True object.

Method Detail

evaluateBoolean

public final boolean evaluateBoolean(Individual i)
                              throws EvaluationException

Evaluates the True Terminal. The evaluation always returns the value true.

Parameters:

i - The Individual being evaluated.

Returns:

The value true.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateBoolean in class Terminal

instance

public final Primitive instance()

Creates a copy of this Terminal.

Returns:

Actaully a reference to the same Terminal since there is no change in instance variables required.

Overrides:

instance in class Primitive

toString

public java.lang.String toString()

Creates a String representing this Terminal.

Returns:

A String containing the name of this Terminal.

Overrides:

toString in class Primitive