SessionFactory is the factory class used to get the Session objects. SessionFactory is responsible to read the hibernate configuration parameters and connect to the database and provide Session objects. Usually, an application has a single SessionFactory instance, and threads servicing client requests obtain Session instances from this factory.
The SessionFactory maintains services that Hibernate uses across all Session(s) such as second-level caches, connection pools, transaction system integrations, etc.
The internal state of SessionFactory is immutable, so it’s thread-safe. Multiple threads can access it simultaneously to get Session instances.
