renamed InjectMembersLazyLinker to InjectMembersLinker

de.itemis.xtext.utils/plugins/de.itemis.xtext.utils.gmf/src/de/itemis/xtext/utils/gmf/resource/InjectMembersLinker.java

@@ -0,0 +1,63 @@
+/**
+ * Copyright (c) 2011 committers of YAKINDU and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * Contributors:
+ * 	committers of YAKINDU - initial API and implementation
+ * 
+ */
+package de.itemis.xtext.utils.gmf.resource;
+
+import java.util.List;
+
+import org.eclipse.emf.ecore.EAnnotation;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.xtext.diagnostics.IDiagnosticProducer;
+import org.eclipse.xtext.linking.impl.Linker;
+import org.eclipse.xtext.nodemodel.impl.CompositeNodeWithSemanticElement;
+
+/**
+ * 
+ * Customized implementation of the Xtext {@link Linker} that ensures that only
+ * crossreferences which are described by Xtext are cleared. If the default
+ * linker is used all crossreferences of the whole model are checked.
+ * 
+ * @author andreas muelder
+ * 
+ */
+public class InjectMembersLinker extends Linker implements
+		IInjectMembersResourceAnnotations {
+
+	@Override
+	protected void clearReference(EObject obj, EReference ref) {
+		// If the CompositeNodeWithSemanticElement adapter exists, we know that
+		// this is an Xtext model element.
+		if (EcoreUtil.getAdapter(obj.eAdapters(),
+				CompositeNodeWithSemanticElement.class) != null) {
+			super.clearReference(obj, ref);
+		}
+	}
+
+	@Override
+	protected void ensureModelLinked(EObject model,
+			final IDiagnosticProducer producer) {
+		// The order of link resolution have to be changed here.
+		// The FeatureCall is a container of the TypedElementReference,
+		// but the child have to be resolved to determine the correct
+		// for the FeatureCall
+		List<EObject> contents = model.eContents();
+		for (EObject current : contents) {
+			EAnnotation eAnnotation = current.eClass().getEAnnotation(
+					INJECT_MEMBERS);
+			if (eAnnotation == null) {
+				ensureModelLinked(current, producer);
+			}
+		}
+		ensureLinked(model, producer);
+	}
+
+}