Hibernate : What is session factory

SessionFactory :The SessionFactory is created from a Configuration object, and as its name implies it is a factory for Session objects.The SessionFactory is an expensive object to create. It, like the Configuration object, is usually created during application start up. However, unlike the Configuration object, It should be created once and kept for later use.

The SessionFactory object is used by all the threads of an application. It is a thread safe object. One SessionFactory object is created per database. Multiple SessionFactory objects (each requiring a separate onfiguration) are created when connecting to multiple databases. The SessionFactory can also provide caching of persistent objects.

via Hibernate Architecture : Chapter 2 | DAV JavaServices Ltd. | Dinesh on Java.


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