| package org.eclipse.gmf.tooling.runtime.parsers; | |
| import org.eclipse.core.runtime.IAdaptable; | |
| import org.eclipse.emf.common.notify.Notification; | |
| import org.eclipse.emf.ecore.EObject; | |
| import org.eclipse.gmf.tooling.runtime.ocl.tracker.OclTracker; | |
| import org.eclipse.gmf.tooling.runtime.ocl.tracker.OclTrackerFactory; | |
| abstract class OclTrackerWrapper { | |
| private final OclTrackerFactory myOclTrackerFactory; | |
| private OclTracker myOclTracker; | |
| public OclTrackerWrapper(OclTrackerFactory oclTrackerFactory) { | |
| myOclTrackerFactory = oclTrackerFactory; | |
| } | |
| public OclTracker getOclTracker() { | |
| if (myOclTracker == null) { | |
| myOclTracker = myOclTrackerFactory.createOclTracker(getExpressionBody(), true); | |
| } | |
| return myOclTracker; | |
| } | |
| public String getUpdatedString(IAdaptable element, int flags) { | |
| EObject target = (EObject) element.getAdapter(EObject.class); | |
| getOclTracker().initialize(target); | |
| return String.valueOf(getOclTracker().getValue()); | |
| } | |
| public boolean isAffectingEvent(Object event, int flags) { | |
| if (event instanceof Notification) { | |
| Notification notification = (Notification) event; | |
| return getOclTracker().handleNotification(notification); | |
| } | |
| return false; | |
| } | |
| protected abstract String getExpressionBody(); | |
| } |