diff -r 14dc2103a631 -r ed1c9f64298a trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/TraceBuilderEvents.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/TraceBuilderEvents.java	Wed Jun 23 14:35:40 2010 +0300
@@ -0,0 +1,110 @@
+/*
+* Copyright (c) 2008 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:
+*
+* Event listener interface
+*
+*/
+package com.nokia.tracebuilder.engine;
+
+import com.nokia.tracebuilder.model.TraceBuilderException;
+
+/**
+ * Event listener interface
+ * 
+ */
+public interface TraceBuilderEvents {
+
+	/**
+	 * Event category for verbose info events
+	 */
+	String VERBOSE_INFO = "Verbose"; //$NON-NLS-1$
+
+	/**
+	 * Posts an error event to TraceBuilder
+	 * 
+	 * @param exception
+	 *            the error data
+	 */
+	public void postError(TraceBuilderException exception);
+
+	/**
+	 * Posts an error event to TraceBuilder
+	 * 
+	 * @param message
+	 *            the error message
+	 * @param source
+	 *            the error source
+	 * @param postEvent
+	 *            defines is error event also posted to trace event view
+	 */
+	public void postErrorMessage(String message, Object source, boolean postEvent);
+
+	/**
+	 * Posts a warning event to TraceBuilder
+	 * 
+	 * @param message
+	 *            the warning message
+	 * @param source
+	 *            the warning source
+	 */
+	public void postWarningMessage(String message, Object source);
+
+	/**
+	 * Posts an info event to TraceBuilder
+	 * 
+	 * @param message
+	 *            the info message
+	 * @param source
+	 *            the info source
+	 */
+	public void postInfoMessage(String message, Object source);
+
+	/**
+	 * Posts a critical assertion failed event
+	 * 
+	 * @param message
+	 *            the message
+	 * @param source
+	 *            the source of the assertion
+	 */
+	public void postCriticalAssertionFailed(String message, Object source);
+
+	/**
+	 * Posts an assertion failed event
+	 * 
+	 * @param message
+	 *            the message
+	 * @param source
+	 *            the source of the assertion
+	 */
+	public void postAssertionFailed(String message, Object source);
+
+	/**
+	 * Sets the category for all events posted to event manager
+	 * 
+	 * @param category
+	 *            the new category
+	 * @return the old category
+	 */
+	public String setEventCategory(String category);
+
+	/**
+	 * Gets the current event category
+	 * 
+	 * @return the current category
+	 */
+	public String getEventCategory();
+
+}