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 They have been superseded by the book An Introduction to XML and Web Technologies Addison-Wesley, and the accompanying online material.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

Static Guarantees

• the client may receive invalid XML documents (e.g. XHTML)
• the server may receive unexpected form fields

In JWIG, client interaction is viewed abstractly as a remote method invocation:

• the compiler usually checks that argument and result types of methods are valid

• whether the (dynamically generated) XML document is valid according to the appropriate XML schema
• whether the forms fields being received are as expected

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