Oops i missed part of that quote from the thread. "SergeySmirnov" wrote : There is a dilemma there. You can use the whole JSF lifecycle with restoring the session for each request to resources like this OR serialize only the required data and pass it directly to the method. | Ajax4jsf uses the second approach. value attribute is used to point to the serializable data. The first approach has to high price (from the performance point of view, first of all). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041791#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...