On Apr 21, 2008, at 11:22 AM, Florijan Stamenkovic wrote:
Hi all,
I'm working on a fairly complicated piece of database engineering,
and wondering about the techniques of overriding flattened
attributes / relationships in inheritance trees. What I might need
to do is flatten a
Entity1 ->> Entity2-> @sum -> Attribute
in a supertype, but override that in certain subclasses into
Entity1 ->> children(Entity1) ->> Entity2-> @sum -> Attribute
Is it possible to do this in the model? I've never tried, my guess
is not, in that case, is it OK to simply do it in Java?
I don't know if you can do that in the model (the @sum) or not. Also,
flattened attributes can have inconsistency problems. I'd lean
towards the Java solution.
Chuck
--
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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