Package de.uka.ipd.sdq.dsexplore.opt4j.optimizer.heuristic.operators

Class AbstractTactic

java.lang.Object

de.uka.ipd.sdq.dsexplore.opt4j.optimizer.heuristic.operators.AbstractTactic

All Implemented Interfaces:

ITactic

Direct Known Subclasses:

AbstractProcessingRateTactic, ConcurrentProcessingSystemImplCatia, ReallocateForReduceLinkUsage, ReallocationImpl, ServerConsolidationImpl, ServerExpansionImpl

public abstract class AbstractTactic
extends Object
implements ITactic

Field Summary

Fields

Modifier and Type	Field	Description
protected final org.opt4j.operator.copy.Copy<org.opt4j.core.Genotype>	copy	Creates copy of genotypes
protected final DSEIndividualFactory	individualFactory	Builds individual

Constructor Summary

Constructors

Constructor	Description
AbstractTactic(org.opt4j.operator.copy.Copy<org.opt4j.core.Genotype> copy, DSEIndividualFactory individualFactory, DSEWorkflowConfiguration configuration, String[] strings)

Method Summary

Modifier and Type	Method	Description
boolean	doesNotImprove(Dimension dimension, EvaluationAspect aspect)	Checks if a certain aspect of a dimension is not improved, if the heuristic is applied.
final double	getHeuristicWeight()	Weight of heuristic determines the probability of its candidates being selected
final int	getNumberOfGeneratedCandidates()	Returns the number of generated candidates of this instance
final boolean	improves(Dimension dimension, EvaluationAspect aspect)	Checks if a certain aspect of a dimension is improved, if the heuristic is applied.
protected final void	increaseCounterOfGeneratedCandidates()
protected final void	setHeuristicWeight(double weight)

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.uka.ipd.sdq.dsexplore.opt4j.optimizer.heuristic.operators.ITactic

getHeuristicCandidates

Field Details

copy

protected final org.opt4j.operator.copy.Copy<org.opt4j.core.Genotype> copy

Creates copy of genotypes

individualFactory

protected final DSEIndividualFactory individualFactory

Builds individual

Constructor Details

AbstractTactic

public AbstractTactic(org.opt4j.operator.copy.Copy<org.opt4j.core.Genotype> copy,
 DSEIndividualFactory individualFactory,
 DSEWorkflowConfiguration configuration,
 String[] strings)

Parameters:

copy - Creates copy of genotypes

individualFactory - Builds individual

Method Details

increaseCounterOfGeneratedCandidates

protected final void increaseCounterOfGeneratedCandidates()

getHeuristicWeight

public final double getHeuristicWeight()

Description copied from interface: ITactic

Weight of heuristic determines the probability of its candidates being selected

Specified by:

getHeuristicWeight in interface ITactic

Returns:

Weight used for selecting candidate out of a set of candidates

setHeuristicWeight

protected final void setHeuristicWeight(double weight)

getNumberOfGeneratedCandidates

public final int getNumberOfGeneratedCandidates()

Description copied from interface: ITactic

Returns the number of generated candidates of this instance

Specified by:

getNumberOfGeneratedCandidates in interface ITactic

Returns:

Number of candidates generated by this heuristic

improves

public final boolean improves(Dimension dimension,
 EvaluationAspect aspect)

Description copied from interface: ITactic

Checks if a certain aspect of a dimension is improved, if the heuristic is applied. The specification is necessary, if the heuristics are applied based on their bound violations.

Specified by:

improves in interface ITactic

Parameters:

dimension - The dimension to check

aspect - The evaluation aspect of the dimension to check

Returns:

true, if the EvaluationAspect of the dimension, i.e. quality attribute, of a individual improves after applying the heuristic
false, otherwise

doesNotImprove

public boolean doesNotImprove(Dimension dimension,
 EvaluationAspect aspect)

Description copied from interface: ITactic

Checks if a certain aspect of a dimension is not improved, if the heuristic is applied. The specification is necessary, if the heuristics are applied based on their bound violations.

Specified by:

doesNotImprove in interface ITactic

Parameters:

dimension - The dimension to check

aspect - The evaluation aspect of the dimension to check

Returns:

true, if the EvaluationAspect of the dimension, i.e. quality attribute, of a individual does not improve after applying the heuristic
false, otherwise

See Also:

• ITactic.improves(Dimension, EvaluationAspect)