There is any way to know, while running an application in a random situation, if the hibernate gets data from cache or database?

Thanks for help :)

I'd like to bring the Topic back to top. :-P

Anyone knows?

If it's just for debugging purposes, then you can get a handle to your CacheManager using CacheManager.getInstance(), then loop through the caches in there, checking for your object.

If you want to run custom code based on whether or not an object is being loaded from the DB, then you probably want to put that code in an interceptor or a PostLoad event listener. Both of these options are explained in the reference docs, the chapter titled "Interceptors and events".