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More then just one primary key with annotations

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Martin_L

Post subject: More then just one primary key with annotations

Posted: Thu Mar 24, 2005 2:16 pm

Beginner

Joined: Mon Mar 21, 2005 1:39 pm
Posts: 28

Hallo,
i'm using annotations of hibernate, and wanted to know, if I can have more than just one primary key? And how does that work?
I tried this way, but it didn't work (only ID2 is the primary key...)

Code:

@Id
public int getID1() {
  .....
 }

@Id
public int getID2(){
  ....
 }

Thanks a lot!
Regrads,
Martin

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snpesnpe

Post subject:

Posted: Thu Mar 24, 2005 3:44 pm

Expert

Joined: Sat Jun 12, 2004 4:49 pm
Posts: 915

There is only one primary key for table in relation database

You want unique key, probably - it exists iin annotation

regards

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david

Post subject:

Posted: Thu Mar 24, 2005 7:57 pm

Hibernate Team

Joined: Tue Aug 26, 2003 7:19 pm
Posts: 2364
Location: Brisbane, Australia

I am assuming you mean compound key and as such the best place to look is in the test package. Not sure its fully implemented as yet since this part is following EJB3.0 spec.

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snpesnpe

Post subject:

Posted: Fri Mar 25, 2005 2:52 am

Expert

Joined: Sat Jun 12, 2004 4:49 pm
Posts: 915

I think that it problem in specification - primary key/id isn't field's/column's features than class/table's

regards

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