What is difference between getCurrentSession() and openSession() in Hibernate ?
The "current session" refers to a Hibernate Session bound by Hibernate behind the scenes, to the transaction scope. A Session is opened when getCurrentSession() is called for the first time and closed when the transaction ends. It is also flushed automatically before the transaction commits. You can call getCurrentSession() as often and anywhere you want as long as the transaction runs. To enable this strategy in your Hibernate configuration:
set hibernate.transaction.managerlookupclass to a lookup strategy for your JEE container set hibernate.transaction.factory_class to org.hibernate.transaction.JTATransactionFactory
Only the Session that you obtained with sf.getCurrentSession() is flushed and closed automatically.
If you decide to use manage the Session yourself the go for sf.openSession() , you have to flush() and close() it. It does not flush and close() automatically.
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