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Interface AlgorithmEventListener<T extends Chromosome>

Type Parameters:

T - extends Chromosome

public interface AlgorithmEventListener<T extends Chromosome>

AlgorithmEventListener provides the interface for capturing events at algorithm level. This iterface should be implemented by all classes interested in being notified by algorithm events, that are:

• Start, when the algorithm evolution starts. The first step consists in initiliazing data structures, in particular populations.
• Init, when the initilization task is accomplished.
• Stop, when the evolution terminates.

An AlgorithmEventListener is registered to the algorithm by the method GeneticAlgorithm.addAlgorithmEventListener(AlgorithmEventListener). The listener is removed by invoking the method GeneticAlgorithm.removeAlgorithmEventListener(AlgorithmEventListener).

An AlgorithmEventListener can be registered to multiple different algorithms, thus being notified by all of them.

Another way to get notified of algorithms events is to override methods GeneticAlgorithm.onStart(long), GeneticAlgorithm.onInit(long) and GeneticAlgorithm.onStop(long) when subclassing the GeneticAlgorithm class.

Since:

1.0

Version:

1.2

See Also:

GeneticAlgorithm

Method Summary

Methods

Modifier and Type	Method and Description
void	onAlgorithmInit(GeneticAlgorithm<T> ga, long time) Invoked when the genetic algorithm is initialized
void	onAlgorithmStart(GeneticAlgorithm<T> ga, long time) Invoked when the genetic algorithm starts
void	onAlgorithmStop(GeneticAlgorithm<T> ga, long time) Invoked when the genetic algorithm ends

Method Detail

onAlgorithmStart

void onAlgorithmStart(GeneticAlgorithm<T> ga,
                    long time)

Invoked when the genetic algorithm starts

Parameters:

ga - the genetic algorithm that generated this event.

time - the event time expressed in milliseconds

onAlgorithmStop

void onAlgorithmStop(GeneticAlgorithm<T> ga,
                   long time)

Invoked when the genetic algorithm ends

Parameters:

ga - the genetic algorithm that generated this event.

time - the event time expressed in milliseconds

onAlgorithmInit

void onAlgorithmInit(GeneticAlgorithm<T> ga,
                   long time)

Invoked when the genetic algorithm is initialized

Parameters:

ga - the genetic algorithm that generated this event.

time - the event time expressed in milliseconds