Master Hibernate and JPA with Spring Boot in 100 Steps - Step 14 - A Quick Review of Entity Manager

The video tutorial covers the Entity Manager, a key interface in JPA, and its interaction with the persistence context. It explains how the persistence context manages entities during transactions and the various methods provided by the Entity Manager, such as persist, merge, remove, flush, refresh, and detach. The tutorial emphasizes the importance of understanding these concepts and encourages further exploration of the Entity Manager interface.

What is the role of the entity manager in JPA?

Explain the concept of a persistence context.

What methods does the entity manager provide for managing entities?

Describe the function of the merge method in the entity manager.

What happens to an entity when it is detached from the persistence context?