[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
Re: [eclipselink-users] @EmbeeddedId vs @IdClass
|
Thanks Guy, it worked like a charm. I
did specify the @Column on each of the fields. Actually, I just copied
the fields over from the entity but EclipseLink complained about the @Id
on each field, so I simply removed it and kept the @Column to specify the
field column names in the database. Of course I had to modify my finder
methods on my facades to now use the PrimaryKey class to pass to the EntityManager.find()
method, but I think that this is a cleaner approach.
Thanks again for the help...
Chris Mathrusse
christopher.mathrusse@xxxxxxxxxx
| From:
| Guy Pelletier <guy.pelletier@xxxxxxxxxx>
|
| To:
| "EclipseLink User Discussions"
<eclipselink-users@xxxxxxxxxxx>
|
| Date:
| 12/18/2009 05:32 AM
|
| Subject:
| Re: [eclipselink-users] @EmbeeddedId
vs @IdClass
|
| Sent by:
| <eclipselink-users-bounces@xxxxxxxxxxx> |
If you use an EmbeddedId, you are not required
to specify the @Id or @Column on the pk fields, but you can if you want
to map different values. If your Embeddable is shared you can use attribute
overrides on the @EmbeddedId mapping.
Cheers,
Guy
----- Original Message -----
From: Christopher.Mathrusse@xxxxxxxxxx
To: Eclipselink-Users
Sent: Thursday, December 17, 2009 4:28 PM
Subject: [eclipselink-users] @EmbeeddedId vs @IdClass
Is there any preference in which one
to use when it comes to composite Primary Keys? I can see from the documentation
that I can use either or, but I'm wondering which one is preferable.
And if I decide to use the @Embeddable annotation on my PrimaryKey class,
and @EmbeddedId in my entity, do I need to annotate the Pk fields
with @Column and @Id?
Thanks for the help...
Chris Mathrusse
christopher.mathrusse@xxxxxxxxxx
_______________________________________________
eclipselink-users mailing list
eclipselink-users@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/eclipselink-users_______________________________________________
eclipselink-users mailing list
eclipselink-users@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/eclipselink-users
