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OCL
Contents
General Information
- New and Noteworthy features in the 1.1 release, by milestone
Articles
- Implementing Model Integrity in EMF with OCL by Christian W. Damus
- EclipseCon 2007 submission "Effective Use of the Eclipse Modeling Framework" by Ed Merks et al.
Examples
public class NewAction2 implements IEditorActionDelegate { /** * The shell this action is hosted in */ protected Shell shell = null;
/** * The active editor */ protected UMLEditor editor = null; protected IStructuredSelection sel;
/** * Constructor for Action1. */ public NewAction2() { super(); }
public void setActiveEditor(IAction action,IEditorPart targetEditor) { this.editor = (UMLEditor) targetEditor; if ( targetEditor != null ) { this.shell = targetEditor.getSite().getShell(); } }
/** * @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart) */ public void setActivePart(IAction action, IWorkbenchPart targetPart) { }
public Object[] getElements(Object inputElement) {
return new Object[0]; } /** * @see IActionDelegate#run(IAction) */ public void run(IAction action) { Shell shell = new Shell(); EObject context=null;
/***********************preparation du contexte a partir de la selection**************/ if (sel != null && !sel.isEmpty()) { Object selected = sel.getFirstElement();
if (selected instanceof EObject) { context = (EObject) selected; } else if (selected instanceof IAdaptable) { context = (EObject) ((IAdaptable) selected).getAdapter(EObject.class); } }
/***************************************************************************/ OCL ocl = OCL.newInstance(new EcoreEnvironmentFactory(
new DelegatingPackageRegistry(
context.eResource().getResourceSet().getPackageRegistry(),
EPackage.Registry.INSTANCE)));
OCL.Helper helper = ocl.createOCLHelper();
helper.setContext(context.eClass());
if (helper.getContextClassifier() == context)
{
helper.setContext(context.eClass());
}
ocl.setParseTracingEnabled(true); OCLExpression<EClassifier> parsed=null; /****************************get the constraint from stereotype***********************/ Element objectselected= (Element) sel.getFirstElement(); EList<Constraint> constraints = objectselected.getAppliedStereotypes().get(0).getOwnedRules(); Constraint myconstraint=constraints.get(0); String body=myconstraint.getSpecification().stringValue(); /************************************************************************************/
try { parsed = helper.createQuery(body); } catch (ParserException e1) { e1.printStackTrace(); }
/**************************constraint evaluation*******************************/ try {
Object o=ocl.evaluate(context, parsed); if (o.toString().equals("true")) { MessageDialog.openInformation(shell,"Validerprofile Plug-in","validation passed"); }
else
{ MessageDialog.openInformation(shell,"Validerprofile Plug-in","constraints violated!"); } } catch (Exception e) { MessageDialog.openInformation(shell,"voici le probleme",e.getLocalizedMessage()); e.printStackTrace(); }
/**************************************************************************************/
} /** * @see IActionDelegate#selectionChanged(IAction, ISelection) */
public void selectionChanged(IAction action, final ISelection selection) { try {
if (selection instanceof IStructuredSelection) { sel = (IStructuredSelection) selection; }
} catch (Exception e) { throw new RuntimeException(e); } finally
{
action.setEnabled((null != sel)); } } }
Javadoc
Development
This section has links to pages of interest primarily to those developing the OCL component.