Re: Why foreignkey field-ref and not column-ref ?

[Thomas Mahler <th...@web.de>]

Hi Sebastien,

It's possible to use anonymous fields for foreign keys. an anonymous 
field does not specify a java attribute, only a column in the db.
See:
http://db.apache.org/ojb/howto-use-anonymous-keys.html

cheers,
Thomas

Sebastien Cesbron wrote:
> Hi,
> 
> I want to specify a relation between an object A (table T_A) and one 
> object B (table T_B) with a foreignkey on the column idB of the table T_A.
> To do that I have to create an attribute idB in the class A and to put a 
>  <foreignkey field-ref="idB"/> in my <reference-descriptor> tag.
> Why it is not possible to act as in the "non decomposed m:n mapping" and 
> specify a db column in stead of a class attribute.
> For example I would like to write <foreignkey column-ref="idB"/> where 
> idB is a column of T_B. With this version, I don't have to put an 
> artificial idB attribute in my class A.
> 
> Is it something difficult to do or is it an implementation choice ?
> 
> Thanx
> 
> Seb
> 
> 
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