Package org.opt4j.core.optimizer

Class Archive

java.lang.Object
org.opt4j.core.IndividualSet
org.opt4j.core.optimizer.Archive
All Implemented Interfaces:
Iterable<Individual>, Collection<Individual>, Set<Individual>
Direct Known Subclasses:
AbstractArchive
public abstract class Archive extends IndividualSet
An Archive is used to store a set of high-quality Individual s. Commonly, these Individuals are non-dominated.

  • Constructor Details

    • Archive

      public Archive()

  • Method Details

    • update

      public boolean update(Individual individual)
      Updates the archive with a single individual.
      Parameters:
      individual - the individual that is used to update the archive
      Returns:
      returns true if the content of the archive changed

    • update

      public abstract boolean update(Set<? extends Individual> individuals)
      Updates the archive with a set of individuals. Instead of the add /addAll methods, which are prohibited for the archive (throwing an UnsupportedOperationException), this method shall be used.
      Parameters:
      individuals - the set of individuals that is used to update the archive
      Returns:
      returns true if the content of the archive changed

    • add

      @Deprecated public final boolean add(Individual individual)
      Deprecated.
      Specified by:
      add in interface Collection<Individual>
      Specified by:
      add in interface Set<Individual>
      Overrides:
      add in class IndividualSet

    • addAll

      @Deprecated public final boolean addAll(Collection<? extends Individual> c)
      Deprecated.
      Specified by:
      addAll in interface Collection<Individual>
      Specified by:
      addAll in interface Set<Individual>
      Overrides:
      addAll in class IndividualSet

    • addAll

      @Deprecated public final boolean addAll(Individual... c)
      Deprecated.
      Description copied from class: IndividualSet
      Add all Individuals.
      Overrides:
      addAll in class IndividualSet
      Parameters:
      c - the individuals to be added
      Returns:
      true if at least one individual was added

    • addCheckedIndividual

      protected boolean addCheckedIndividual(Individual individual)
      Adds the Individual to this Archive without further checks. Must be used only if the Individual is checked to be Pareto-dominant and, according to possible archive size restrictions, can be added to this Archive.
      Parameters:
      individual - the individual to be actually added to the archive
      Returns:
      true

    • addCheckedIndividuals

      protected boolean addCheckedIndividuals(Collection<? extends Individual> individuals)
      Adds the Individuals to this Archive without further checks. Must be used only if the Individuals are checked to be Pareto-dominant and, according to possible archive size restrictions, can all be added to this Archive.
      Parameters:
      individuals - the individuals to be actually added to the archive
      Returns:
      true