We are new to Hibernate. I know that Session objects are not thread safe.

We create an object map and are able to divide objects in groups.
Would I be able to create multiple threads and assign a new session object and a group of objects (which are to be stored in the db) to each thread (from the same SessionFactory / second level cache) and speed up my inserts?

If yes, I also want to be able to manage the whole insert in one transation. Would this be possible using UserTransaction?

Any helpe would be greatly appreciated