org.semanticweb.owlapi.util

Class OWLOntologyChangeFilter

java.lang.Object

org.semanticweb.owlapi.util.OWLOntologyChangeFilter

All Implemented Interfaces:

OWLAnnotationAxiomVisitor, OWLAxiomVisitor, OWLLogicalAxiomVisitor, OWLOntologyChangeVisitor, OWLVisitorBase, SWRLRuleVisitorBase

Direct Known Subclasses:

FilteringOWLOntologyChangeListener

public class OWLOntologyChangeFilter
extends Object
implements OWLAxiomVisitor, OWLOntologyChangeVisitor

Provides a convenient method to filter add/remove axiom changes based on the type of axiom that is being added or removed from an ontology.
The general pattern of use is to simply create an instance of the OWLOntologyChangeFilter and override the appropriate visit methods corresponding to the types of axioms that are of interest. Each visit corresponds to a single change and the isAdd or isRemove methods can be used to determine if the axiom corresponding to the change is being added or removed from an ontology - the ontology can be obtained via the getOntology method.
Example: Suppose we are interested in changes that alter the domain of an object property. We receive a list of changes, ontChanges, from an ontology change listener. We can use the OWLOntologyChangeFilter to filter out the changes that alter the domain of an object property in the following way:

 OWLOntologyChangeFilter filter = new OWLOntologyChangeFilter() {
 

      // Override the object property domain visit method
      public void visit(OWLObjectPropertyDomainAxiom axiom) {
          // Determine if the axiom is being added or removed
          if(isAdd()) {
              // Get hold of the ontology that the change applied to
              OWLOntology ont = getOntology();
              // Do something here
          }
      }
 }
 // Process the list of changes
 filter.processChanges(ontChanges);
 

Since:

2.0.0

Author:

Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group

Constructor Summary

Constructors

Constructor and Description
OWLOntologyChangeFilter()

Method Summary

Modifier and Type	Method and Description
void	processChanges(List<? extends OWLOntologyChange> changes)
void	visit(AddAxiom change) visit AddAxiom type
void	visit(RemoveAxiom change) visit RemoveAxiom type

Methods inherited from class java.lang.Object

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

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

visit, visit

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

visit, visit, visit, visit

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

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

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

visit

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

doDefault, getDefaultReturnValue, handleDefault

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

visit, visit, visit, visit, visit

Constructor Detail

OWLOntologyChangeFilter

public OWLOntologyChangeFilter()

Method Detail

processChanges

public void processChanges(List<? extends OWLOntologyChange> changes)

Parameters:

changes - changes to process

visit

public void visit(AddAxiom change)

Description copied from interface: OWLOntologyChangeVisitor

visit AddAxiom type

Specified by:

visit in interface OWLOntologyChangeVisitor

Parameters:

change - change to visit

visit

public void visit(RemoveAxiom change)

Description copied from interface: OWLOntologyChangeVisitor

visit RemoveAxiom type

Specified by:

visit in interface OWLOntologyChangeVisitor

Parameters:

change - change to visit