Catching and Handling dual update in hibernate using Optimistic Locking

[paul king]

I have implemented hibernate into my system and have included the optimistic locking. This all works fine and throws the correct error - StaleObjectStateException. What I need to know is:

How do I throw this back up from the DAO to the user to display an error message on screen.

I'm using struts/jsps as a front end.

Thanks

Paul

[Paul Sturrock]

You could just throw it as is. Otherwise you could create your own Exception with a more meaningful (to the user) message and throw that instead.

[Sebastian Hennebrueder]

catch the Runtimeexception in your Struts action and react
or catch it in your business layer and give something else Exception/return value to your struts action.

Best Regards

Sebastian