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Baze
 Post subject: HQL Query
PostPosted: Thu Feb 26, 2004 12:37 pm 
Newbie

Joined: Fri Feb 06, 2004 10:16 am
Posts: 7
Hi,

My problem is with this query (taken from the documentation):

"select elements(cat.kittens) from eg.Cat cat"

Now, what if I want to have some conditional restictions on the kittens collection that is to be returned...how could I write that?

Thanks in advance

/Klas
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bertrand
 Post subject:
PostPosted: Thu Feb 26, 2004 12:47 pm 
Proxool Developer
Proxool Developer

Joined: Tue Aug 26, 2003 10:42 am
Posts: 373
Location: Belgium
Wonder if something like this would work...

Code:
select kit from eg.Cat cat, eg.Cat kit where kit in elements(cat.kittens) and <your condition on the kit>
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michael
 Post subject:
PostPosted: Thu Feb 26, 2004 6:55 pm 
Hibernate Team
Hibernate Team

Joined: Tue Sep 09, 2003 2:10 pm
Posts: 3246
Location: Passau, Germany
Or probably
Code:
select kit from eg.Cat cat join cat.kittens as kit where kit.something = 1
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bertrand
 Post subject:
PostPosted: Thu Feb 26, 2004 7:01 pm 
Proxool Developer
Proxool Developer

Joined: Tue Aug 26, 2003 10:42 am
Posts: 373
Location: Belgium
gloeglm wrote:
Or probably
Code:
select kit from eg.Cat cat join cat.kittens as kit where kit.something = 1


You are right - cleaner ;-)
Side question: are these two queries not supposed to do the same - what are the difference in how Hibernate will handle them ?
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michael
 Post subject:
PostPosted: Thu Feb 26, 2004 7:06 pm 
Hibernate Team
Hibernate Team

Joined: Tue Sep 09, 2003 2:10 pm
Posts: 3246
Location: Passau, Germany
I think they should produce the same results, but in elements will produce a subselect in the generated SQL, while the join will just produce a join :)
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Baze
 Post subject:
PostPosted: Fri Feb 27, 2004 3:39 am 
Newbie

Joined: Fri Feb 06, 2004 10:16 am
Posts: 7
It worked very well. Thanks gloeglm.

/KBaze
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