diff -r 14dc2103a631 -r ed1c9f64298a trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/source/SourceEditorUpdater.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/source/SourceEditorUpdater.java	Wed Jun 23 14:35:40 2010 +0300
@@ -0,0 +1,89 @@
+/*
+* 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:
+*
+* Base class for source file updater objects
+*
+*/
+package com.nokia.tracebuilder.engine.source;
+
+import com.nokia.tracebuilder.source.SourceLocationBase;
+import com.nokia.tracebuilder.source.SourceParserException;
+
+/**
+ * Base class for source file updater objects
+ * 
+ */
+public abstract class SourceEditorUpdater {
+
+	/**
+	 * Source properties to update
+	 */
+	private SourceProperties properties;
+
+	/**
+	 * Constructor
+	 * 
+	 * @param properties
+	 *            the source to updated
+	 */
+	protected SourceEditorUpdater(SourceProperties properties) {
+		this.properties = properties;
+	}
+
+	/**
+	 * Updates the source
+	 */
+	public void update() {
+		properties.getUpdateQueue().queueUpdate(this);
+	}
+
+	/**
+	 * Gets the source properties
+	 * 
+	 * @return the source properties
+	 */
+	protected SourceProperties getSource() {
+		return properties;
+	}
+
+	/**
+	 * Checks if this updater equals the given updater. Default implementation
+	 * compares the position references
+	 * 
+	 * @param updater
+	 *            the updater to be checked
+	 * @return true if the updates are equal
+	 */
+	protected boolean updaterEquals(SourceEditorUpdater updater) {
+		return getPosition() == updater.getPosition();
+	}
+
+	/**
+	 * Runs the update operation on the source
+	 * 
+	 * @return true if source was updated, false if not
+	 * @throws SourceParserException
+	 *             if source parser fails
+	 */
+	protected abstract boolean runUpdate() throws SourceParserException;
+
+	/**
+	 * Gets the position where the update happens
+	 * 
+	 * @return the update position
+	 */
+	protected abstract SourceLocationBase getPosition();
+
+}