Hi,

How to query using EntityManager.find() if my entity class primary key is made of 2 fields?

Please advise.

Regards,
Jap.

Hi,

In case of composite keys one has to work with an embedded class as the primary key representation. An instance of this primary key class can then be passed to find(). See http://www.hibernate.org/hib_docs/annotations/reference/en/html_single/#d0e1662.

If you want to keep the two fields which make up your primary key separated in your entity have a look at @IdClass.

--Hardy

Yes, thanks.
I tried, it works.