Question

I want to make a loading screen(Splash screen) for my Java SE app. And I am using Hibernate to as the ORM. The session factory creation takes sometime and I would like to know if there is a way to find how much time it takes for the Hibernate session factory to load?

Answer 1

It’s not possible through an API so you’ll have to use a workaround.

Possible solutions:

1. simply display an infinite loading spinner without caring of when the session factory loading will actually complete:
2. keep track of the last 5 session factory load times, average them, and display a loader with that duration
3. instrument HbmBinder (with AOP or via direct code editing at the source of hib [not recommended]) and whenever it finishes mapping a class, update a static counter which you’ll be able to access from another thread
4. start up the app with your own java based org.hibernate.cfg.Configuration and whenever you add a resource or class you will update the “classes loaded” counter