diff -r 000000000000 -r e35f40988205 xml/xmldomandxpath/inc/xmlenginedom/xmlengdataserializer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/xmldomandxpath/inc/xmlenginedom/xmlengdataserializer.h	Thu Dec 17 09:29:21 2009 +0200
@@ -0,0 +1,50 @@
+// Copyright (c) 2006-2009 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 class describing class that may be used as
+// serializer for binary data
+//
+
+
+
+/**
+ @file
+ @publishedAll
+ @released
+*/
+#ifndef XMLENGMDATASERIALIZER_H
+#define XMLENGMDATASERIALIZER_H
+
+#include <xml/dom/xmlengnode.h>
+
+/**
+This interface is used to serialize binary data stored in a node, external
+memory chunk (RChunk) or file.  This interface may be implemented by client
+applications.
+@see TXmlEngSerializationOptions
+*/
+class MXmlEngDataSerializer
+    {
+public:
+    /** 
+	Serializes the node.  The implementor of this class must allocate and own
+	the memory returned by this method until serialization is complete.
+    @param aNode A node to serialize
+    @return The serialized node
+	@leave - One of the system-wide error codes
+    */
+    virtual TPtrC8 SerializeDataL(TXmlEngNode aNode) = 0;
+    };
+
+
+#endif /* XMLENGMDATASERIALIZER_H */