org.topbraid.change
Class ReplaceSuperClassesChange

java.lang.Object
  org.topbraid.core.change.AbstractChange
      org.topbraid.change.ReplaceSuperClassesChange

All Implemented Interfaces:

IChange

public class ReplaceSuperClassesChange
extends AbstractChange

Constructor Summary

ReplaceSuperClassesChange(java.util.Collection<com.hp.hpl.jena.rdf.model.Resource> subClasses, com.hp.hpl.jena.rdf.model.Resource newSuperClass)

Method Summary

java.lang.String	check(ISession session) Checks if this can be executed and returns an error string if not.
void	execute(ISession session, org.eclipse.core.runtime.IProgressMonitor monitor) Executes the change.
protected com.hp.hpl.jena.rdf.model.Resource	getNewObject()
protected java.util.Collection<com.hp.hpl.jena.rdf.model.Resource>	getSubjects()
protected com.hp.hpl.jena.graph.Graph	getTargetGraph(com.hp.hpl.jena.rdf.model.Resource subject, com.hp.hpl.jena.ontology.OntModel ontModel, java.util.List<com.hp.hpl.jena.rdf.model.Statement> oldStatements)
protected boolean	isSurviving(com.hp.hpl.jena.rdf.model.Statement s) Determines whether an existing statement shall be removed.

Methods inherited from class org.topbraid.core.change.AbstractChange

getImageMetadata, getLabel, isNoop, setImage, setImage, setLabel

Methods inherited from class java.lang.Object

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

Constructor Detail

ReplaceSuperClassesChange

public ReplaceSuperClassesChange(java.util.Collection<com.hp.hpl.jena.rdf.model.Resource> subClasses,
                                 com.hp.hpl.jena.rdf.model.Resource newSuperClass)

Method Detail

check

public java.lang.String check(ISession session)

Description copied from interface: IChange

Checks if this can be executed and returns an error string if not. This method is usually called by the execution environment prior to calling the IChange.execute(org.topbraid.core.session.ISession, org.eclipse.core.runtime.IProgressMonitor) method.

Specified by:

check in interface IChange

Parameters:

session - the session to check against

Returns:

null if the change can be performed, an error message otherwise

getTargetGraph

protected com.hp.hpl.jena.graph.Graph getTargetGraph(com.hp.hpl.jena.rdf.model.Resource subject,
                                                     com.hp.hpl.jena.ontology.OntModel ontModel,
                                                     java.util.List<com.hp.hpl.jena.rdf.model.Statement> oldStatements)

isSurviving

protected boolean isSurviving(com.hp.hpl.jena.rdf.model.Statement s)

Determines whether an existing statement shall be removed. Subclasses can overload this to "save" existing values, such as restrictions.

Parameters:

s - the Statement that is about to be deleted

Returns:

true if s shall not be deleted

execute

public void execute(ISession session,
                    org.eclipse.core.runtime.IProgressMonitor monitor)

Description copied from interface: IChange

Executes the change. This should perform the changes to a Jena model. In case of an unexpected state, the method may throw an IllegalStateException.

Parameters:

session - the session to execute the change on

monitor - a progress monitor for longish operations (may be null)

getNewObject

protected com.hp.hpl.jena.rdf.model.Resource getNewObject()

getSubjects

protected java.util.Collection<com.hp.hpl.jena.rdf.model.Resource> getSubjects()