The XML Object model for Apache Axis2,AXIOM, is a lightweight, low memory footprint, high performance object model. It is specifically engineered to be less memory-intensive by using differed building. See how Axiom caters to high demand XML processing in this article by Eran Chinthaka. http://www.jaxmag.com/itr/online_artikel/psecom,id,726,nodeid,147.html [0]