--- florian ramillien <[EMAIL PROTECTED]> wrote:
>  Actually, I don't know methods to get a constant unique identifier for
> a Object. But we can use a unique identifier for Persistent object. This
> is 'object's class' + 'primary key'. So perhaps we can use this as key
> for the Hashtable ?

Doesn't one have to worry about the primary key changing?  Its a valid
use-case, even if its not optimal.  (If the primary key is a name, and
they change the name before other rows in other tables reference that
name, etc.  I know one case in production like this currently.)
 
>  In mailing list, we can see sometimes reference to a refactoring of
> Castor. Is this refactoring modifying this performance problem ? Maybe
> Thomas Yip or a Castor Developer can give you some advice on This ?

Yeah, I there is a level of refactoring going on.  (So we can get 
polymorphic inheritance back, among other things)  Currently, I'm focusing

on the PostgreSQL side of castor; for performance and compatiablity. 
(pgsql7.2 is going to have some changes to the driver that we can take 
advantage of. I'm going to try to have the Castor take advantage of the
driver in that area.) I've got some free-time this weekend, and I'm going
to experiment in the area you have... see if I can find a solution to our
problem.

=====
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