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Re: (ITS#5517) add superclass of existing class fails
On May 24, 2008, at 2:18 AM, ando@sys-net.it wrote:
> I believe the actual implementation should be... implementation
> dependent :), provided it is consistent.
I agree there is a slight inconsistency.
A client can delete a listed superclass but not add an superclass of a
listed attribute.
One could argue that both be considered invalid operations. However,
it would be reasonable to consider an add of an unlisted superclass
and a delete of a listed superclass to be valid. However, a add of an
already listed class should be invalid and a delete of a unlisted
class should always be invalid.
-- Kurt