jenes.stage.operator

Class Operator<T extends Chromosome>

java.lang.Object

jenes.stage.AbstractStage<T>

jenes.stage.operator.Operator<T>

Type Parameters:

T - The class of chromosomes to work with.

Direct Known Subclasses:

Crossover, Crowder, Mutator, Scaling, Selector

public abstract class Operator<T extends Chromosome>
extends AbstractStage<T>

A genetic operator used in the evolution process. It is made part of the genetic algorithm structure at the genetic algorithm set up. An operator represents the ultimate stage executing some trasformation on the input Population in order to obtain the output one.

To implement an operator it is necessary to subclass this abstract class.

Since:

1.0

Version:

1.2

See Also:

Individual, Population

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	Operator.Statistics A statistics object holding the time spent to execute the operator.

Field Summary

Fields

Modifier and Type	Field and Description
protected Random	random the random used by the operator
protected Operator.Statistics	statistics the operator statistics

Fields inherited from class jenes.stage.AbstractStage

biggerIsBetter, fitness, ga

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Operator() Constructs a new operator

Method Summary

Methods

Modifier and Type	Method and Description
Operator.Statistics	getStatistics() Returns the operator statistics
void	updateStatistics(Operator.Statistics stats) Updates the specified statistics at the statistics operator state

Methods inherited from class jenes.stage.AbstractStage

dispose, getFitness, init, isBiggerBetter, isFitnessChanged, process, setBiggerIsBetter, setBiggerIsBetter, setFitness, setFitness

Methods inherited from class java.lang.Object

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

Field Detail

statistics

protected Operator.Statistics statistics

the operator statistics

random

protected Random random

the random used by the operator

Constructor Detail

Operator

protected Operator()

Constructs a new operator

Method Detail

getStatistics

public Operator.Statistics getStatistics()

Returns the operator statistics

Returns:

statistics

updateStatistics

public void updateStatistics(Operator.Statistics stats)

Updates the specified statistics at the statistics operator state

Parameters:

stats -