NOTE: These slides have not been updated since 2003. They have been superseded by the book An Introduction to XML and Web Technologies Addison-Wesley, and the accompanying online material. Please see http://www.brics.dk/ixwt/ for more information. Anders Møller and Michael Schwartzbach, February 2006

INTERACTIVE WEB SERVICES WITH JAVA

Runtime System

• one JVM thread (persistent through the session lifetime)
• one sub-directory (containing the thread's files)
• one URL (referring to index.html in the session sub-directory)

The index.html page always contains the newest response shown to the client.

A garbage collector takes care of removing dead session directories.

This is different from the JSP/Servlet solutions:

• we are not using cookies, URL rewriting, or hidden fields
• the URL functions as an identity of the session
• sessions can be bookmarked (suspended and later resumed)
• the history buffer of the browser is not filled with references to obsolete requests

COPYRIGHT © 2002-2003 ANDERS MØLLER & MICHAEL I. SCHWARTZBACH