gpsys
Class GeneFunction

java.lang.Object
  |
  +--gpsys.Gene
        |
        +--gpsys.GeneFunction

Direct Known Subclasses:

GeneFunctionFull, GeneFunctionGrow

public abstract class GeneFunction

extends Gene

implements java.lang.Cloneable

A GeneFunction is a Gene tree representing a function call. A GeneFunction therefore has Gene arguments (branches or subtrees).

Version:

$Revision: 1.1 $, $Date: 2000/07/05 16:21:25 $

Author:

Adil Qureshi

Department of Computer Science,

University College London,

Gower St,

London WC1E 6BT,

UK.

See Also:

Gene, GeneFunctionGrow, GeneFunctionFull, Serialized Form

Field Summary

Gene[]

arguments The arguments for this function call.

Fields inherited from class gpsys.Gene

p

Constructor Summary

GeneFunction()

Method Summary

int	complexity() Get the number of Genes in this Gene tree.
Gene	deepClone() Make a clone of this Gene tree, cloning all subtrees.
int	depth() Get the maximum depth of this Gene tree
boolean	evaluateBoolean(Individual i) Evaluate this Gene as Function returning a boolean.
byte	evaluateByte(Individual i) Evaluate this Gene as Function returning a byte.
char	evaluateChar(Individual i) Evaluate this Gene as Function returning a char.
double	evaluateDouble(Individual i) Evaluate this Gene as Function returning a double.
float	evaluateFloat(Individual i) Evaluate this Gene as Function returning a float.
int	evaluateInt(Individual i) Evaluate this Gene as Function returning an int.
long	evaluateLong(Individual i) Evaluate this Gene as Function returning a long.
java.lang.Object	evaluateObject(Individual i) Evaluate this Gene as Function returning an Object reference.
short	evaluateShort(Individual i) Evaluate this Gene as Function returning a short.
java.lang.String	toString() Create a String representing this Gene tree.

Methods inherited from class java.lang.Object

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

Field Detail

arguments

public Gene[] arguments

The arguments for this function call. The length of this array is equal to the number of arguments taken by the function referenced by this Gene.

Constructor Detail

GeneFunction

public GeneFunction()

Method Detail

evaluateObject

public java.lang.Object evaluateObject(Individual i)
                                throws EvaluationException

Evaluate this Gene as Function returning an Object reference.

Parameters:

i - the individual to which this Gene belongs

Returns:

An Object which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateObject in class Gene

evaluateByte

public byte evaluateByte(Individual i)
                  throws EvaluationException

Evaluate this Gene as Function returning a byte.

Parameters:

i - the individual to which this Gene belongs

Returns:

A byte which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateByte in class Gene

evaluateShort

public short evaluateShort(Individual i)
                    throws EvaluationException

Evaluate this Gene as Function returning a short.

Parameters:

i - the individual to which this Gene belongs

Returns:

A short which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateShort in class Gene

evaluateInt

public int evaluateInt(Individual i)
                throws EvaluationException

Evaluate this Gene as Function returning an int.

Parameters:

i - the individual to which this Gene belongs

Returns:

An int which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateInt in class Gene

evaluateLong

public long evaluateLong(Individual i)
                  throws EvaluationException

Evaluate this Gene as Function returning a long.

Parameters:

i - the individual to which this Gene belongs

Returns:

A long which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateLong in class Gene

evaluateFloat

public float evaluateFloat(Individual i)
                    throws EvaluationException

Evaluate this Gene as Function returning a float.

Parameters:

i - the individual to which this Gene belongs

Returns:

A float which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateFloat in class Gene

evaluateDouble

public double evaluateDouble(Individual i)
                      throws EvaluationException

Evaluate this Gene as Function returning a double.

Parameters:

i - the individual to which this Gene belongs

Returns:

A double which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateDouble in class Gene

evaluateChar

public char evaluateChar(Individual i)
                  throws EvaluationException

Evaluate this Gene as Function returning a char.

Parameters:

i - the individual to which this Gene belongs

Returns:

A char which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateChar in class Gene

evaluateBoolean

public boolean evaluateBoolean(Individual i)
                        throws EvaluationException

Evaluate this Gene as Function returning a boolean.

Parameters:

i - the individual to which this Gene belongs

Returns:

A boolean which is the result of the evaluation.

Throws:

EvaluationException - If there is an evaluation failure.

Overrides:

evaluateBoolean in class Gene

depth

public int depth()

Get the maximum depth of this Gene tree

Returns:

the maximum depth of the tree.

Overrides:

depth in class Gene

complexity

public int complexity()

Get the number of Genes in this Gene tree.

Returns:

the number of Genes in this Gene tree.

Overrides:

complexity in class Gene

deepClone

public Gene deepClone()

Make a clone of this Gene tree, cloning all subtrees.

Returns:

a clone of this Gene.

Overrides:

deepClone in class Gene

toString

public java.lang.String toString()

Create a String representing this Gene tree.

Returns:

a String representing this tree.

Overrides:

toString in class Gene