On Nov 12, 2007, at 5:07 AM, che wrote:

>
> i had similar need to order things prev week. I thought that may be in
> the future there will be possible to define some artificial dependency
> (similar to relation) that have no its counterpart in the database in
> order to meet similar requrements - this will add just one, two
> dependencies to the topological sort and will not slow down much the
> commit process. what is your opinion, Michael?
>

that would be fairly straightforward to add....at the class level it  
would be very easy (i.e. dependency between two different classes/ 
tables), at the instance level should be possible as well (i.e.  
dependency bettween two instances/rows).   though a developer using  
such a feature can quickly find his or herself creating dependency  
loops that aren't solvable :)

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