org.semanticweb.owlapi.model

Interface OWLEquivalentClassesAxiom

All Superinterfaces:

Comparable<OWLObject>, OWLAxiom, OWLClassAxiom, OWLLogicalAxiom, OWLNaryAxiom, OWLNaryClassAxiom, OWLObject, OWLSubClassOfAxiomSetShortCut, Serializable

All Known Implementing Classes:

OWLEquivalentClassesAxiomImpl

public interface OWLEquivalentClassesAxiom
extends OWLNaryClassAxiom

Represents an EquivalentClasses axiom in the OWL 2 Specification.

Author:

Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group Date: 24-Oct-2006

Method Summary

Methods

Modifier and Type	Method and Description
Set<OWLEquivalentClassesAxiom>	asPairwiseAxioms() Gets this axiom as a set of pairwise axioms.
boolean	containsNamedEquivalentClass() Determines if this equivalent classes axiom contains at least one named class (excluding owl:Thing or owl:Nothing).
boolean	containsOWLNothing() Determines if this class axiom makes a class expression equivalent to nothing.
boolean	containsOWLThing() Determines if this class axiom makes a class expression equivalent to thing.
OWLEquivalentClassesAxiom	getAxiomWithoutAnnotations() Gets an axiom that is structurally equivalent to this axiom without annotations.
Set<OWLClass>	getNamedClasses() Gets the named classes (excluding owl:Thing and owl:Nothing) that are in this equivalent classes axiom.

Methods inherited from interface org.semanticweb.owlapi.model.OWLNaryClassAxiom

contains, getClassExpressions, getClassExpressionsAsList, getClassExpressionsMinus

Methods inherited from interface org.semanticweb.owlapi.model.OWLAxiom

accept, accept, equalsIgnoreAnnotations, getAnnotatedAxiom, getAnnotations, getAnnotations, getAxiomType, getNNF, isAnnotated, isAnnotationAxiom, isLogicalAxiom, isOfType, isOfType

Methods inherited from interface org.semanticweb.owlapi.model.OWLObject

accept, accept, getAnonymousIndividuals, getClassesInSignature, getDataPropertiesInSignature, getDatatypesInSignature, getIndividualsInSignature, getNestedClassExpressions, getObjectPropertiesInSignature, getSignature, isBottomEntity, isTopEntity

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.semanticweb.owlapi.model.OWLSubClassOfAxiomSetShortCut

asOWLSubClassOfAxioms

Method Detail

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

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

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

Set<OWLEquivalentClassesAxiom> asPairwiseAxioms()

Description copied from interface: OWLNaryAxiom

Gets this axiom as a set of pairwise axioms. Note that annotations on this axiom will not be copied to each axiom returned in the set of pairwise axioms.

Specified by:

asPairwiseAxioms in interface OWLNaryAxiom

Returns:

This axiom as a set of pairwise axioms.

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 annotationless version of this axiom