Package org.opt4j.core.optimizer

Class AbstractOptimizer

java.lang.Object

org.opt4j.core.optimizer.AbstractOptimizer

All Implemented Interfaces:

Optimizer

Direct Known Subclasses:

DifferentialEvolution, EvolutionaryAlgorithm, MOPSO, RandomSearch, SimulatedAnnealing

public abstract class AbstractOptimizer
extends Object
implements Optimizer

This AbstractOptimizer is an abstract implementation of a population-based Optimizer. All population based optimizers can be derived from this class.

Field Summary

Fields

Modifier and Type	Field	Description
protected final Archive	archive
protected final IndividualCompleter	completer
protected final Control	control
protected final Iteration	iteration
protected final Set<OptimizerIterationListener>	iterationListeners
protected boolean	optimizing
protected final Population	population
protected final Set<OptimizerStateListener>	stateListeners

Constructor Summary

Constructors

Constructor	Description
AbstractOptimizer(Population population, Archive archive, IndividualCompleter completer, Control control, Iteration iteration)	Constructs an AbstractOptimizer with a Population, an Archive, an IndividualFactory, and a IndividualCompleter.

Method Summary

Modifier and Type	Method	Description
void	addOptimizerIterationListener(OptimizerIterationListener listener)	Adds an OptimizerIterationListener to this optimizer.
void	addOptimizerStateListener(OptimizerStateListener listener)	Adds an OptimizerStateListener to this optimizer.
int	getIteration()	Return the current iteration.
protected void	injectListeners(Set<OptimizerStateListener> stateListeners, Set<OptimizerIterationListener> iterationListeners)
boolean	isRunning()	Returns true if the Optimizer is running.
protected void	nextIteration()	Call this method if a new iteration started.
void	removeOptimizerIterationListener(OptimizerIterationListener listener)	Removes an OptimizerIterationListener from this optimizer.
void	removeOptimizerStateListener(OptimizerStateListener listener)	Removes an OptimizerStateListener from this optimizer.
void	startOptimization()	This method is called once the optimization process has started.
void	stopOptimization()	This method is called once the optimization process has stopped.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opt4j.core.optimizer.Optimizer

optimize

Field Details

iteration

protected final Iteration iteration

population

protected final Population population

archive

protected final Archive archive

completer

protected final IndividualCompleter completer

control

protected final Control control

stateListeners

protected final Set<OptimizerStateListener> stateListeners

iterationListeners

protected final Set<OptimizerIterationListener> iterationListeners

optimizing

protected boolean optimizing

Constructor Details

AbstractOptimizer

public AbstractOptimizer(Population population,
 Archive archive,
 IndividualCompleter completer,
 Control control,
 Iteration iteration)

Constructs an AbstractOptimizer with a Population, an Archive, an IndividualFactory, and a IndividualCompleter.

Parameters:

population - the specified population

archive - the specified archive

completer - the specified completer

control - the control

iteration - the iteration counter

Method Details

injectListeners

@Inject
protected void injectListeners(Set<OptimizerStateListener> stateListeners,
 Set<OptimizerIterationListener> iterationListeners)

getIteration

public int getIteration()

Description copied from interface: Optimizer

Return the current iteration.

Specified by:

getIteration in interface Optimizer

Returns:

the current iteration

isRunning

public boolean isRunning()

Description copied from interface: Optimizer

Returns true if the Optimizer is running.

Specified by:

isRunning in interface Optimizer

Returns:

true if the optimizer is running

nextIteration

protected void nextIteration()
                      throws TerminationException,
StopException

Call this method if a new iteration started.

Throws:

StopException - if the optimization is stopped

TerminationException - if the optimization is terminated

startOptimization

public void startOptimization()

Description copied from interface: Optimizer

This method is called once the optimization process has started.

Specified by:

startOptimization in interface Optimizer

stopOptimization

public void stopOptimization()

Description copied from interface: Optimizer

This method is called once the optimization process has stopped.

Specified by:

stopOptimization in interface Optimizer

addOptimizerIterationListener

public void addOptimizerIterationListener(OptimizerIterationListener listener)

Description copied from interface: Optimizer

Adds an OptimizerIterationListener to this optimizer.

Specified by:

addOptimizerIterationListener in interface Optimizer

Parameters:

listener - the OptimizerIterationListener to add

See Also:

• Optimizer.removeOptimizerIterationListener(org.opt4j.core.optimizer.OptimizerIterationListener)

addOptimizerStateListener

public void addOptimizerStateListener(OptimizerStateListener listener)

Description copied from interface: Optimizer

Adds an OptimizerStateListener to this optimizer.

Specified by:

addOptimizerStateListener in interface Optimizer

Parameters:

listener - the OptimizerStateListener to add

See Also:

• Optimizer.removeOptimizerStateListener(org.opt4j.core.optimizer.OptimizerStateListener)

removeOptimizerIterationListener

public void removeOptimizerIterationListener(OptimizerIterationListener listener)

Description copied from interface: Optimizer

Removes an OptimizerIterationListener from this optimizer.

Specified by:

removeOptimizerIterationListener in interface Optimizer

Parameters:

listener - the OptimizerIterationListener to remove

See Also:

• Optimizer.addOptimizerIterationListener(org.opt4j.core.optimizer.OptimizerIterationListener)

removeOptimizerStateListener

public void removeOptimizerStateListener(OptimizerStateListener listener)

Description copied from interface: Optimizer

Removes an OptimizerStateListener from this optimizer.

Specified by:

removeOptimizerStateListener in interface Optimizer

Parameters:

listener - the OptimizerStateListener to remove

See Also:

• Optimizer.addOptimizerStateListener(org.opt4j.core.optimizer.OptimizerStateListener)