What role does the Session interface play in Hibernate?
The Session interface is the primary interface used by Hibernate applications. It is a single-threaded, short-lived object representing a conversation between the application and the persistent store. Session is not thread safe so we should not share same session between multiple threads. It allows you to create query objects to retrieve persistent objects.
Session session = sessionFactory.openSession();
Session interface role:
- Wraps a JDBC connection
- Factory for Transaction
- Holds a mandatory (first-level) cache of persistent objects, used when navigating the object graph or looking up objects by identifier