What's the use of session.flush() in Hibernate

Question

When we are updating a record, we can use session.flush() with Hibernate. What\'s the need for flush()?

Answer 1

Flushing the Session gets the data that is currently in the session synchronized with what is in the database.

More on the Hibernate website:

• http://docs.jboss.org/hibernate/core/3.3/reference/en/html/objectstate.html#objectstate-flushing

flush() is useful, because there are absolutely no guarantees about when the Session executes the JDBC calls, only the order in which they are executed - except you use flush().