Thanks lot jai.., I understood that scanner will be doing, it for every particulat interval of time. As soon as we deploy ,hw will this get executed, i have doubt hw will that compare? where does the comparsion takes place and hw will that comparsion done...will it be with time stamp..?hw will this Hw will this compare with previous cache .....(timestamp,content,object) or any comparsion it follows(i read it as url comparsion)? cheers Subramanyam007 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4102412#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...