How to send only the changed contents of an XML DOM to the http clients

V

vanisathish

Hi,
I've a web application(STRUTS Action Servlet +JSP) that sends an XML
DOM to the remote HTML clients. From the JSP page there will be a timer
that calls the servlet periodically.

Inorder to save bandwidth, i need to send the XML DOM only when the
data changes. How do implement this at the session level ?. When a NEW
client comes, i need to send the complete XML DOM, whereas if the
request is from an already connected client, i need send only when the
data changes.

How do i implement this
Thanks
 

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