diff -r a151135b0cf9 -r aa2539c91954 tracesrv/tracecompiler/src/com.nokia.tracecompiler/src/com/nokia/tracecompiler/model/TraceModelExtension.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecompiler/src/com.nokia.tracecompiler/src/com/nokia/tracecompiler/model/TraceModelExtension.java	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,43 @@
+/*
+* 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:
+*
+* Interface implemented by trace model extensions
+*
+*/
+package com.nokia.tracecompiler.model;
+
+/**
+ * Interface implemented by trace model extensions
+ * 
+ */
+public interface TraceModelExtension {
+
+	/**
+	 * Sets the owner of this extension. Called when extension is added to a
+	 * trace object and called with null when removed from trace object
+	 * 
+	 * @param owner
+	 *            the owning object
+	 */
+	public void setOwner(TraceObject owner);
+
+	/**
+	 * Gets the owner of this extension
+	 * 
+	 * @return the owner
+	 */
+	public TraceObject getOwner();
+
+}