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john
 Post subject: subclass without discriminator
PostPosted: Wed May 18, 2005 9:24 am 
Newbie

Joined: Mon Oct 13, 2003 12:57 pm
Posts: 3
Hi,

we have an entity which have a subclass.
The entity is persistent and the sublcass is not.

Now we want the subclass also to be persisted.

But in our case, no discriminator value exists to tell the difference between
the entity and the subclass (the subclass is just a different 'view' of the entity)

Is there some way to do this ?

thanks in advance for your help
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Reto
 Post subject:
PostPosted: Wed May 18, 2005 9:35 am 
Regular
Regular

Joined: Mon Oct 06, 2003 7:17 am
Posts: 58
Location: Switzerland
If you use "joined-subclass" instead of "subclass" in your mapping file, then you don't need a discriminator. Every subclass has it's own table in the database with "joined-subclass".

Was that the answer to your question???

Reto
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pksiv
 Post subject: Re: subclass without discriminator
PostPosted: Wed May 18, 2005 11:05 am 
Expert
Expert

Joined: Mon Feb 14, 2005 12:32 pm
Posts: 609
Location: Atlanta, GA - USA
john wrote:
Hi,

we have an entity which have a subclass.
The entity is persistent and the sublcass is not.

Now we want the subclass also to be persisted.

But in our case, no discriminator value exists to tell the difference between
the entity and the subclass (the subclass is just a different 'view' of the entity)

Is there some way to do this ?

thanks in advance for your help


Check out http://www.hibernate.org/41.html
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