How can I run actions in my mapped JPA classes whenever they are stored in the database?

Question

I want to have a function in one of my annotated JPA classes that is called every time the EntityManager stores them in a database (like an event listener). Is it possible? Preferably, I would like to distinguish whether it will just be saved or has just been saved.

To accomplish what I want, this time I probably could work with the setter method, but that would be completely wrong.

Answer 1

Of course, check out these examples . You have:

• @PrePersist;
• @PreUpdate;
• @PreRemove.
• @PostPersist;
• @PostUpdate; and
• @PostRemove.

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Answer 2

, , , Hanno () :

http://www.cereslogic.com/pages/2008/03/31/pizza-shop-iii-jpa-event-listeners/

:

http://www.andygibson.net/blog/article/auditing-entities-with-jpa-events/

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Saludos desde