--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecompiler/src/com.nokia.tracecompiler/src/com/nokia/tracecompiler/model/TraceProcessingListener.java	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,42 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+* Multi-update optimization
+*
+*/
+package com.nokia.tracecompiler.model;
+
+/**
+ * Callback interface which should be notified when performing multiple updates
+ * to the trace model. The implementation of TraceModelListener can also
+ * implement this interface to avoid performing unnecessary updates.
+ * 
+ */
+public interface TraceProcessingListener {
+
+	/**
+	 * Called when a sequence of trace model updates is about to start
+	 */
+	public void processingStarted();
+
+	/**
+	 * Called when a sequence of trace model updates has finished
+	 * 
+	 * @param changed
+	 *            true if the model was changed while processing, false if not
+	 */
+	public void processingComplete(boolean changed);
+
+}