Is it possible to detach Hibernate entity, so that changes to object are not automatically saved to database?

Question

I have Hibernate entity that I have to convert to JSON, and I have to translate some values in entity, but when I translate values, these values are instantly saved to datab

Answer 1

You can also avoid that your entities are attached to the Hibernate Session by using a StatelessSession:

StatelessSession session = sessionFactory.openStatelessSession();

instead of

Session session = sessionFactory.getCurrentSession();

Note that you must take care yourself of closing the StatelessSession, unlike the regular Hibernate Session:

session.close(); // do this after you are done with the session

Another difference compared to the regular Session is that a StatelessSession can not fetch collections. I see it's main purpose for data-fetching-only SQLQuery stuff.

You can read more about the different session types here:

http://www.interviewadda.com/difference-between-getcurrentsession-opensession-and-openstatelesssession/