@GeneratedValue for non-PK fields

[mtuckah]

From the JEE 5 API:

The GeneratedValue annotation may be applied to a primary key property or field of an entity or mapped superclass in conjunction with the Id annotation.

Am I correct in saying that this means that you can ONLY use the @GeneratedValue annotation on fields that are Primary Keys. If so, isn't this a limitation of the spec?

[epbernard]

yes,
this case is rare enough for being left out of the spec

[db__]

thank god someone said it.
I tried hours to get @GeneratedValue work on a non-pk field.
So how do you generate a values for non-pk fields?
For example acticle or ordernumbers, in my case.
regards,
-dennis