Hi,

I want hibernate to crypt and decrypt my id when I save or load un object. Cause I don't want this id visible in an url.

I think this is possible with an userType but I have no idea on how to implement it.

Encrypt/Decrypt should be possible with a UserType. There are several examples of UserTypes in the WIKI. You would need to adapt it from there.

I'm wonder what encrypting data in the db has to do with a URL? If you've got data moving between the browser and the app server that you want secure, then you should be using SSL.

Curtis ...