IMHO there are 2 kinds of integrations involved here: one from the perspective of developing (as it is for the integration of Hibernate and XDoclet,
Ant, Middlegen, AndroMDA, etc) - and this is included in the book (as I understand it from Christian, and a review
review.
On the other hand it is the integration of Hibernate in some other frameworks. For this kind of info I would take a look into the documentation of that framework. (in fact afaik Spring describes very well in the reference
doc the integration with Hibernate, and I think the same is done in
J2EE development without EJB book).
./pope