Working with a session
The core operations of Hibernate occur in the session. This is where connection to the database is obtained, Structured Query Language (SQL) statements are composed, type conversions are made, and where transactions and the persistence context are managed. Let's start by getting to know the internals of a Hibernate session.
Session internals
If you have written at least one Hibernate application in the past, you already know what an entity and a session are. However, most of the time, developers don't think about the session, the entity, and their lifecycles, or about what occurs inside a session when an entity is saved or updated. There are fundamental concepts that one must understand in order to utilize Hibernate effectively. ...
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