diff -r ed1c9f64298a -r 5b9d4d8641ce trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/engine/DataWriter.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/engine/DataWriter.java	Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2007-2010 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:
+ *
+ * Data Writer interface
+ *
+ */
+package com.nokia.traceviewer.engine;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Data Writer Interface
+ */
+public interface DataWriter {
+
+	/**
+	 * Writes message
+	 * 
+	 * @param sourceBuffer
+	 *            sourceBuffer where to write the message
+	 * @param msgStart
+	 *            message start offset
+	 * @param msgLen
+	 *            message length
+	 */
+	public void writeMessage(ByteBuffer sourceBuffer, int msgStart, int msgLen);
+
+	/**
+	 * Closes writing
+	 */
+	public void closeChannel();
+}