diff -r 14dc2103a631 -r ed1c9f64298a trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/LocationListBase.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/LocationListBase.java	Wed Jun 23 14:35:40 2010 +0300
@@ -0,0 +1,121 @@
+/*
+* 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 TraceLocationList and LastKnownLocationList
+*
+*/
+package com.nokia.tracebuilder.engine;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+import com.nokia.tracebuilder.model.TraceModelExtension;
+import com.nokia.tracebuilder.model.TraceObject;
+
+/**
+ * Base class for TraceLocationList and LastKnownLocationList
+ * 
+ */
+public class LocationListBase implements TraceModelExtension,
+		Iterable<LocationProperties> {
+
+	/**
+	 * List of locations
+	 */
+	private ArrayList<LocationProperties> locations = new ArrayList<LocationProperties>();
+
+	/**
+	 * Owning trace object
+	 */
+	private TraceObject owner;
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.model.TraceModelExtension#getOwner()
+	 */
+	public TraceObject getOwner() {
+		return owner;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.model.TraceModelExtension#setOwner(com.nokia.tracebuilder.model.TraceObject)
+	 */
+	public void setOwner(TraceObject owner) {
+		this.owner = owner;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see java.lang.Iterable#iterator()
+	 */
+	public Iterator<LocationProperties> iterator() {
+		return locations.iterator();
+	}
+
+	/**
+	 * Gets the location count of this list
+	 * 
+	 * @return the count
+	 */
+	public final int getLocationCount() {
+		return locations.size();
+	}
+
+	/**
+	 * Checks if there are locations in this list
+	 * 
+	 * @return true if list has locations
+	 */
+	public final boolean hasLocations() {
+		return !locations.isEmpty();
+	}
+
+	/**
+	 * Adds a location to this list
+	 * 
+	 * @param location
+	 *            the location to be added
+	 */
+	void add(LocationProperties location) {
+		locations.add(location);
+	}
+
+	/**
+	 * Removes a location from this list
+	 * 
+	 * @param location
+	 *            the location to be removed
+	 * @return true if removed
+	 */
+	boolean remove(LocationProperties location) {
+		return locations.remove(location);
+	}
+
+	/**
+	 * Checks if location exists
+	 * 
+	 * @param location
+	 *            the location
+	 * @return true if exists
+	 */
+	boolean contains(LocationProperties location) {
+		return locations.contains(location);
+	}
+
+}