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| Re: Exchanging data between constraints [message #417751 is a reply to message #417749] |
Wed, 26 March 2008 13:17  |
 Ed Merks
Messages: 33216
Registered: July 2009 |
Senior Member |
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Lars,
You can use the context map as a way to cache information that's shared
by all the constraints during a given validation invocation. But I'm
not sure you can rely much on the order in which constraints are evaluated.
Lars Heinemann wrote:
> Hi all,
>
> we are using EMFT Validation to validate our models. My question is:
> Is it possible/desirable that constraints exchange data?
>
> I would use it for the following scenario: For a meta model class I
> have a constraint with error severity and one with a warning severity.
> Now I only want to evaluate and potentially trigger the warning
> constraint if the error constraint has not fired. I.e. if the object
> is not invalid, it might still get a warning but if it has alreay the
> error, the warning message is meaningless and not wanted.
>
> Btw, I don't want to recheck the warning condition in the error
> constraint or the other way round.
>
> What do you think?
>
> Cheers,
> Lars
Ed Merks
Professional Support: https://www.macromodeling.com/
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