lio.individuals
Class Individual

java.lang.Object
  lio.individuals.Individual

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Comparable

Direct Known Subclasses:

BitChain, ContChain, Permutation

public abstract class Individual
extends java.lang.Object
implements java.lang.Cloneable, java.lang.Comparable

This abstract class contains the common features and methods for each kind of individual.

Field Summary

protected boolean	evaluated Determines whether the individual has been evaluated or not.
protected static int	maxSize Maximum size of the individuals.
protected int	size Current size of each individuals.
protected double	value Numeric result of the evaluation of the individual.

Constructor Summary

Individual()

Method Summary

void	change() Notifies a change in the individual's data.
abstract java.lang.Object	clone() Clones an individual.
int	compareTo(java.lang.Object o) Compares this Individual with the specified individual for order.
static int	getMaxSize() Returns the maximum size that can have an individual.
int	getSize() Returns the size of the individual.
boolean	isEvaluated() Returns true if the individual has been already evaluated.
static void	setMaxSize(int pMaxSize) Setter for property size.
void	setSize(int size) Setter for property size.
void	setValue(double pValue, boolean pEvaluated) Sets value without carryng out the evaluation.
abstract java.lang.String	toString() Returns a string representation of the individual.
double	value() Returns the value corresponding to the evaluation of the individual.

Methods inherited from class java.lang.Object

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

Field Detail

maxSize

protected static int maxSize

Maximum size of the individuals. In most cases it corresponds with the size of the problem.

size

protected int size

Current size of each individuals. In most cases, it will be the same as the maxSize;

evaluated

protected boolean evaluated

Determines whether the individual has been evaluated or not.

value

protected double value

Numeric result of the evaluation of the individual.

Constructor Detail

Individual

public Individual()

Method Detail

isEvaluated

public boolean isEvaluated()

Returns true if the individual has been already evaluated.

Returns:

Whether the individual has already been evaluated or not.

value

public double value()

Returns the value corresponding to the evaluation of the individual. If it hasn't already been evaluated, the evaluation is carried out.

Returns:

Fitness of the individual.

change

public void change()

Notifies a change in the individual's data. It sets evaluate to false, since value may not correspond to the new composition.

clone

public abstract java.lang.Object clone()

Clones an individual. It allows to copy individuals instead of references.

Overrides:

clone in class java.lang.Object

Returns:

an object similar to this.

getSize

public int getSize()

Returns the size of the individual.

Returns:

Size of the individual.

getMaxSize

public static int getMaxSize()

Returns the maximum size that can have an individual.

Returns:

Size of the individual.

toString

public abstract java.lang.String toString()

Returns a string representation of the individual.

Overrides:

toString in class java.lang.Object

Returns:

A String representation of the individual.

setSize

public void setSize(int size)

Setter for property size.

Parameters:

size - New value of property size.

setMaxSize

public static void setMaxSize(int pMaxSize)

Setter for property size.

Parameters:

size - New value of property size.

compareTo

public int compareTo(java.lang.Object o)

Compares this Individual with the specified individual for order. Comparison is done by fitness values.

Specified by:

compareTo in interface java.lang.Comparable

Returns:

a negative integer, zero, or a positive integer as this individual is less than, equal to, or greater than the specified individual.

setValue

public void setValue(double pValue,
                     boolean pEvaluated)

Sets value without carryng out the evaluation.

Parameters:

pValue - the evaluation value for this object.