While trying to generate hibernate mappings for my POJOS using XDoclet 
1.2, I was surprised to see that some xml tags were not handled by 
XDoclet.

I checked XDoclet documentation, and open issues on <a 
href="http://opensource.atlassian.com/projects/xdoclet/secure/ViewIssue
.jspa?key=XDT-803">JIRA</a> and I found many developpers asking for 
extentions to handle these tags.

The easiest way to get them generated was to edit XDoclet Module for 
Hibernate templates. My <a 
href="http://jroller.com/page/irbouho/20040227#xdoclet_and_hibernate_2_
1">web log entry</a> show more details ont this.