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

Interface ITactic

All Known Implementing Classes:
AbstractProcessingRateTactic, AbstractTactic, ConcurrentProcessingSystemImplCatia, DecreaseProcessingRateImpl, IncreaseProcessingRateImpl, ReallocateForReduceLinkUsage, ReallocationImpl, ServerConsolidationImpl, ServerExpansionImpl
public interface ITactic

  • Method Details

    • improves

      boolean improves(Dimension dimension, EvaluationAspect aspect)
      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.
      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

      boolean doesNotImprove(Dimension dimension, EvaluationAspect aspect)
      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.
      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:

    • getHeuristicCandidates

      List<TacticsResultCandidate> getHeuristicCandidates(DSEIndividual i, UtilisationResultCacheAndHelper resultsCache)
      Generates improved individuals based on heuristic and given individual. Candidates must only use model objects from the design decision model, they must not refer to model elements from the PCM model (as these may not be identical Java objects even if they represent the same EMF object).
      Parameters:
      i - The individual that should be improved
      resultsCache -
      Returns:
      Collection of improved individuals

    • getNumberOfGeneratedCandidates

      int getNumberOfGeneratedCandidates()
      Returns the number of generated candidates of this instance
      Returns:
      Number of generated candidates

    • getHeuristicWeight

      double getHeuristicWeight()
      Weight of heuristic determines the probability of its candidates being selected
      Returns: