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Hi all,

I've just read HIA, after finishing Chapter 8. (Writing Hibernate Applications) I have a question here.

Before persisting a domain model to DB I need to make sure that the record does not exist yet in the database by comparing ID from domain model to the one in DB.

That is, I need to query the DB first using the ID contained in the domain model and if the query returns 1 record that means the record already exists in the DB and the domain model should not be persisted.

I don't know where the above routine should take place, I definitely can not put it in the domain model itself since this will pollute the domain model with persistence API and DAOs.


Regards,


Setya

Go to the regular User forum.