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Re: [henshin-dev] References to outside elements

Hi Daniel,

Ok, i figured it out to create the right elements. In the use case mentioned i had to create some nodes that do not reside in the rule on UML level (e.g. the classifier of the instance spec).

That way it works to create these edges on the RHS. 


Thanks,

Johannes



Am 14.09.2017 um 19:34 schrieb Daniel Strüber:
Hi Johannes,

generally, you don't need to specify all elements of an input model - in fact, doing so would very much contradict the idea of rules, which are meant to be applicable to many different input models. At its core, a rule specifies (i) a pattern that is matched against (possibly much larger) input models, and (ii) some change actions to modify these models if a match was found.

Your use-case of generating rules from a UML model sounds like a very specialized use of rules. I think we could help you better if you could describe the context and purpose of your example rule in more detail.

Best regards,
Daniel



Am 14.09.2017 um 18:25 schrieb Johannes Groß:
Hi,
 
while generating henshin rules from an EMF based UML model, i am asking myself how to treat references (eReferences) to the rest of the model. 
So say i have an instance specification in my LHS and RHS that has a classifier, do i need to model this classifier in the rule as a node or is there a way to reference it as an "outside element"? 

Thanks,
Johannes


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