Move DreamsPlatformUtils.{disableNotificationsOf(), enableNotificationsOf(),...

Move DreamsPlatformUtils.{disableNotificationsOf(), enableNotificationsOf(), setNotificationsOf()} to EcoreUtils

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/EcoreUtils.java

@@ -18,11 +18,13 @@ $Id: codetemplates.xml 1 2011-01-01 00:00:01Z hoelzl $
 package org.fortiss.tooling.kernel.utils;
 
 import static org.eclipse.emf.common.notify.Notification.EVENT_TYPE_COUNT;
+import static org.eclipse.emf.ecore.util.EcoreUtil.getAllContents;
 import static org.eclipse.emf.ecore.util.EcoreUtil.getRootContainer;
 
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
@@ -53,7 +55,7 @@ import org.eclipse.emf.ecore.util.EcoreUtil.UsageCrossReferencer;
  * @author ratiu
  * @author $Author: hoelzl $
  * @version $Rev: 18709 $
- * @ConQAT.Rating YELLOW Hash: 1389480141899137DCF3BC8ED77C4616
+ * @ConQAT.Rating YELLOW Hash: D4F6E8CB31511C0DB589D3C69E6D24E9
  */
 public class EcoreUtils {
 
@@ -441,4 +443,53 @@ public class EcoreUtils {
 
 		return usages;
 	}
+
+	/**
+	 * <p>
+	 * Disables the notifications emitted by the given {@link EObject} and its children.
+	 * </p>
+	 * <p>
+	 * <b>CAVEAT:</b> This method should be only used to avoid a notification flood when editing
+	 * models massively. The Undo/Redo-logging is disabled thereby. You must ensure to re-enable the
+	 * notifications, after the modifications are done.
+	 * </p>
+	 * 
+	 * @param element
+	 *            The element for whom and its children the notifications shall be disabled.
+	 * 
+	 * @return {@code true}, if the notifications can be disabled for the given {@link EObject}
+	 */
+	public static boolean disableNotificationsOf(EObject element) {
+		return setNotificationsOf(element, false);
+	}
+
+	/**
+	 * Enables the notifications for the given {@link EObject} and its children.
+	 * 
+	 * @param element
+	 *            The element for whom and its children the notifications shall be enabled.
+	 * 
+	 * @return {@code true}, if the notifications can be disabled for the given {@link EObject}
+	 */
+	public static boolean enableNotificationsOf(EObject element) {
+		return setNotificationsOf(element, true);
+	}
+
+	/**
+	 * Sets the notification state for the given {@link EObject} and its children.
+	 * 
+	 * @param element
+	 *            The element for whom and its children the notification state should be .
+	 * 
+	 * @return {@code true}, if the notifications can be disabled for the given {@link EObject}
+	 */
+	private static boolean setNotificationsOf(EObject element, boolean value) {
+		element.eSetDeliver(value);
+		Iterator<EObject> childIterator = getAllContents(element, true);
+		while(childIterator.hasNext()) {
+			EObject currentChild = childIterator.next();
+			currentChild.eSetDeliver(value);
+		}
+		return true;
+	}
 }