org.opt4j.core.common.completer

Class ParallelIndividualCompleter

java.lang.Object

org.opt4j.core.common.completer.SequentialIndividualCompleter

org.opt4j.core.common.completer.ParallelIndividualCompleter

All Implemented Interfaces:

IndividualCompleter, OptimizerStateListener

public class ParallelIndividualCompleter
extends SequentialIndividualCompleter
implements OptimizerStateListener

The ParallelIndividualCompleter completes Individuals with multiple threads.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	ParallelIndividualCompleter.Complete The ParallelIndividualCompleter.Complete class completes a single Individual.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.concurrent.ExecutorService	executor

Fields inherited from class org.opt4j.core.common.completer.SequentialIndividualCompleter

control, decoder, evaluator

Constructor Summary

Constructors

Constructor and Description
ParallelIndividualCompleter(Control control, Decoder<Genotype,java.lang.Object> decoder, Evaluator<java.lang.Object> evaluator, int maxThreads) Constructs a ParallelIndividualCompleter with a specified maximal number of concurrent threads.

Method Summary

Modifier and Type	Method and Description
void	complete(java.lang.Iterable<? extends Individual> iterable) Decodes and evaluates all Individuals in the Iterable if they are not already evaluated.
protected void	finalize()
void	optimizationStarted(Optimizer optimizer) Invoked if the Optimizer starts the optimization process.
void	optimizationStopped(Optimizer optimizer) Invoked if the Optimizer stops the optimization process.
protected void	shutdownExecutorService() Shutdown the ExecutorService.

Methods inherited from class org.opt4j.core.common.completer.SequentialIndividualCompleter

complete, decode, evaluate

Methods inherited from class java.lang.Object

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

Field Detail

executor

protected final java.util.concurrent.ExecutorService executor

Constructor Detail

ParallelIndividualCompleter

@Inject
public ParallelIndividualCompleter(Control control,
                                            Decoder<Genotype,java.lang.Object> decoder,
                                            Evaluator<java.lang.Object> evaluator,
                                            int maxThreads)

Constructs a ParallelIndividualCompleter with a specified maximal number of concurrent threads.

Parameters:

control - the control

decoder - the decoder

evaluator - the evaluator

maxThreads - the maximal number of parallel threads (using namespace ParallelIndividualCompleter)

Method Detail

complete

public void complete(java.lang.Iterable<? extends Individual> iterable)
              throws TerminationException

Description copied from interface: IndividualCompleter

Decodes and evaluates all Individuals in the Iterable if they are not already evaluated.

Specified by:

complete in interface IndividualCompleter

Overrides:

complete in class SequentialIndividualCompleter

Parameters:

iterable - the set of individuals to be completed

Throws:

TerminationException - if the optimization is terminated

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

shutdownExecutorService

protected void shutdownExecutorService()

Shutdown the ExecutorService.

optimizationStarted

public void optimizationStarted(Optimizer optimizer)

Description copied from interface: OptimizerStateListener

Invoked if the Optimizer starts the optimization process.

Specified by:

optimizationStarted in interface OptimizerStateListener

Parameters:

optimizer - the optimizer

optimizationStopped

public void optimizationStopped(Optimizer optimizer)

Description copied from interface: OptimizerStateListener

Invoked if the Optimizer stops the optimization process.

Specified by:

optimizationStopped in interface OptimizerStateListener

Parameters:

optimizer - the optimizer