org.semanticweb.owlapi.model

Class OWLOntologyChange

java.lang.Object

org.semanticweb.owlapi.model.OWLOntologyChange

All Implemented Interfaces:

HasSignature

Direct Known Subclasses:

AnnotationChange, ImportChange, OWLAxiomChange, SetOntologyID

public abstract class OWLOntologyChange
extends Object
implements HasSignature

Author:

Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group Date: 25-Oct-2006

Constructor Summary

Constructors

Constructor and Description
OWLOntologyChange(OWLOntology ont)

Method Summary

Modifier and Type	Method and Description
abstract void	accept(OWLOntologyChangeVisitor visitor) Accepts a visitor
abstract <O> O	accept(OWLOntologyChangeVisitorEx<O> visitor) Accepts a visitor
abstract OWLAxiom	getAxiom() If the change is an axiom change (i.e.
abstract OWLOntologyChangeData	getChangeData() Gets the data (independent of the ontology) associated with this specific change.
OWLOntologyChangeRecord	getChangeRecord() Gets a OWLOntologyChangeRecord that is derived from this OWLOntologyChange's OWLOntologyID and it's OWLOntologyChangeData.
OWLOntology	getOntology() Gets the ontology that the change is/was applied to.
abstract Set<OWLEntity>	getSignature() Gets the signature of this ontology change.
abstract boolean	isAddAxiom() Determines if the change will add an axiom to an ontology.
abstract boolean	isAxiomChange() Determines if the change will cause the addition or removal of an axiom from an ontology.
abstract boolean	isImportChange() Determines if this change is an import change and hence causes a change to the imports closure of an ontology.
boolean	isRemoveAxiom() Determines if the change will remove an axiom from an ontology.

Methods inherited from class java.lang.Object

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

Constructor Detail

OWLOntologyChange

public OWLOntologyChange(OWLOntology ont)

Parameters:

ont - the ontology to which the change is to be applied

Method Detail

isAxiomChange

public abstract boolean isAxiomChange()

Determines if the change will cause the addition or removal of an axiom from an ontology.

Returns:

true if the change is an OWLAddAxiomChange or OWLRemoveAxiomChange otherwise false.

isAddAxiom

public abstract boolean isAddAxiom()

Determines if the change will add an axiom to an ontology.

Returns:

true if the change is an AddAxiom change and it will add an axiom to an ontology, false otherwise.

isRemoveAxiom

public boolean isRemoveAxiom()

Determines if the change will remove an axiom from an ontology.

Returns:

true if the change is a RemoveAxiom change and it will remove an axiom from an ontology, false otherwise.

getAxiom

public abstract OWLAxiom getAxiom()

If the change is an axiom change (i.e. AddAxiom or RemoveAxiom) this method obtains the axiom.

Returns:

The Axiom if this change is an axiom change

Throws:

UnsupportedOperationException - If the change is not an axiom change (check with the isAxiomChange method first).

isImportChange

public abstract boolean isImportChange()

Determines if this change is an import change and hence causes a change to the imports closure of an ontology.

Returns:

true if this change is an import change, otherwise false.

getOntology

public OWLOntology getOntology()

Gets the ontology that the change is/was applied to.

Returns:

The ontology that the change is applicable to

getChangeData

public abstract OWLOntologyChangeData getChangeData()

Gets the data (independent of the ontology) associated with this specific change.

Returns:

The OWLOntologyChangeData associated with this OWLOntologyChange. Not null.

getChangeRecord

public OWLOntologyChangeRecord getChangeRecord()

Gets a OWLOntologyChangeRecord that is derived from this OWLOntologyChange's OWLOntologyID and it's OWLOntologyChangeData.

Returns:

An OWLOntologyChangeRecord containing an OWLOntologyID equal to the OWLOntologyID of this OWLOntologyChange's OWLOntology. Not null .

getSignature

public abstract Set<OWLEntity> getSignature()

Gets the signature of this ontology change. That is, the set of entities appearing in objects in this change.

Specified by:

getSignature in interface HasSignature

Returns:

A set of entities that correspond to the signature of this object. The set is a copy, changes are not reflected back.

accept

public abstract void accept(OWLOntologyChangeVisitor visitor)

Accepts a visitor

Parameters:

visitor - The visitor

accept

public abstract <O> O accept(OWLOntologyChangeVisitorEx<O> visitor)

Accepts a visitor

Type Parameters:

O - visitor return type

Parameters:

visitor - The visitor

Returns:

visitor value