org.topbraid.change.refactoring
Class ConvertToBNodeChange

java.lang.Object
  org.topbraid.core.change.AbstractChange
      org.topbraid.change.refactoring.ConvertToBNodeChange

All Implemented Interfaces:

IChange

public class ConvertToBNodeChange
extends AbstractChange

An IChange that converts a given URI Resource into a bnode. The change is only valid if the resource is only referenced as an object of at most one triple, and if it is only used in a single Graph.

Author:

Holger Knublauch

Constructor Summary

ConvertToBNodeChange(com.hp.hpl.jena.rdf.model.Resource uriResource)

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.

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

ConvertToBNodeChange

public ConvertToBNodeChange(com.hp.hpl.jena.rdf.model.Resource uriResource)

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

Overrides:

check in class AbstractChange

Parameters:

session - the session to check against

Returns:

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

execute

public void execute(ISession session,
                    org.eclipse.core.runtime.IProgressMonitor monitor)
             throws java.lang.InterruptedException

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)

Throws:

java.lang.InterruptedException - if the user has cancelled the execution, e.g. using the provided monitor