Package org.semanticweb.owlapi.model

Interface OWLEquivalentClassesAxiom

All Superinterfaces:
Comparable<OWLObject>, HasAnnotationPropertiesInSignature, HasAnnotations, HasAnonymousIndividuals, HasClassesInSignature, HasComponents, HasContainsEntityInSignature, HasDataPropertiesInSignature, HasDatatypesInSignature, HasHashIndex, HasIndex, HasIndividualsInSignature, HasObjectPropertiesInSignature, HasOperands<OWLClassExpression>, HasSignature, IsAnonymous, OWLAxiom, OWLClassAxiom, OWLLogicalAxiom, OWLNaryAxiom<OWLClassExpression>, OWLNaryClassAxiom, OWLObject, OWLSubClassOfAxiomSetShortCut, Serializable
All Known Implementing Classes:
OWLEquivalentClassesAxiomImpl
public interface OWLEquivalentClassesAxiom extends OWLNaryClassAxiom
Represents an EquivalentClasses axiom in the OWL 2 Specification.
Since:
2.0.0
Author:
Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group

  • Method Details

    • getAxiomWithoutAnnotations

      OWLEquivalentClassesAxiom getAxiomWithoutAnnotations()
      Description copied from interface: OWLAxiom
      Gets an axiom that is structurally equivalent to this axiom without annotations. This essentially returns a version of this axiom stripped of any annotations.
      Specified by:
      getAxiomWithoutAnnotations in interface OWLAxiom
      Returns:
      The axiom without annotations

    • hashIndex

      default int hashIndex()
      Specified by:
      hashIndex in interface HasHashIndex
      Returns:
      index for this type. This is not a hashcode for instances, rather a hashcode for the types.

    • containsNamedEquivalentClass

      boolean containsNamedEquivalentClass()
      Determines if this equivalent classes axiom contains at least one named class (excluding owl:Thing or owl:Nothing).
      Returns:
      true if the axiom contains at least one named class otherwise false. Note that this method will return false if the only named classes are owl:Thing or owl:Nothing.

    • getNamedClasses

      default Set<OWLClass> getNamedClasses()
      Gets the named classes (excluding owl:Thing and owl:Nothing) that are in this equivalent classes axiom.
      Returns:
      A set of classes that represents the named classes that are specified to be equivalent to some other class (expression), excluding the built in classes owl:Thing and owl:Nothing. The set that is returned is a copy; modifications to the returned set will not be reflected in this object.

    • namedClasses

      Stream<OWLClass> namedClasses()
      Gets the named classes (excluding owl:Thing and owl:Nothing) that are in this equivalent classes axiom.
      Returns:
      stream of classes that represents the named classes that are specified to be equivalent to some other class (expression), excluding the built in classes owl:Thing and owl:Nothing

    • containsOWLNothing

      boolean containsOWLNothing()
      Determines if this class axiom makes a class expression equivalent to nothing.
      Returns:
      true if this axiom contains owl:Nothing as an equivalent class.

    • containsOWLThing

      boolean containsOWLThing()
      Determines if this class axiom makes a class expression equivalent to thing.
      Returns:
      true if this axioms contains owl:Thing as an equivalent class.

    • asPairwiseAxioms

      Collection<OWLEquivalentClassesAxiom> asPairwiseAxioms()
      Description copied from interface: OWLNaryAxiom
      Gets this axiom as a set of pairwise axioms; if the axiom contains only two operands, the axiom itself is returned unchanged, including its annotations. Note that, aside from this exception, annotations on this axiom will not be copied to each axiom returned in the set of pairwise axioms.
      Note: This will contain all pairs, i.e., for the set "a, b, c" the pairs "a, b", "a, c", "b, c" will be returned. For some applications, only "a, b", "b, c" are required.
      Specified by:
      asPairwiseAxioms in interface OWLNaryAxiom<OWLClassExpression>
      Returns:
      This axiom as a set of pairwise axioms.

    • splitToAnnotatedPairs

      Collection<OWLEquivalentClassesAxiom> splitToAnnotatedPairs()
      Description copied from interface: OWLNaryAxiom
      Splits this axiom to pairs, including annotations. This method implements the process described at http://www.w3.org/TR/owl2-mapping-to-rdf/# Axioms_that_are_Translated_to_Multiple_Triples which is used, for example, in serializing EquivalentProperty axioms with three operands. Note that annotations on this axiom will be copied to each axiom returned in the set of pairwise axioms. Note: This will contain only the "An, An+1" pairs, i.e., for the set "a, b, c" the pairs "a, b" and "b, c" will be returned, but not "a, c".
      Specified by:
      splitToAnnotatedPairs in interface OWLNaryAxiom<OWLClassExpression>
      Returns:
      This axiom as a set of pairwise axioms, annotations included.

    • accept

      default void accept(OWLObjectVisitor visitor)
      Description copied from interface: OWLObject
      Accepts a visitor
      Specified by:
      accept in interface OWLObject
      Parameters:
      visitor - The visitor

    • accept

      default <O> O accept(OWLObjectVisitorEx<O> visitor)
      Description copied from interface: OWLObject
      Accepts a visitor
      Specified by:
      accept in interface OWLObject
      Type Parameters:
      O - visitor return type
      Parameters:
      visitor - The visitor
      Returns:
      visitor value

    • accept

      default void accept(OWLAxiomVisitor visitor)
      Specified by:
      accept in interface OWLAxiom
      Parameters:
      visitor - visitor to accept

    • accept

      default <O> O accept(OWLAxiomVisitorEx<O> visitor)
      Specified by:
      accept in interface OWLAxiom
      Type Parameters:
      O - visitor return type
      Parameters:
      visitor - visitor to accept
      Returns:
      visitor value

    • getAxiomType

      default AxiomType<?> getAxiomType()
      Description copied from interface: OWLAxiom
      Gets the axiom type for this axiom.
      Specified by:
      getAxiomType in interface OWLAxiom
      Returns:
      The axiom type that corresponds to the type of this axiom.