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| [Epsilon] Complete Beginner: Is this possible? [message #755375] |
Tue, 08 November 2011 05:05  |
Eclipse User |
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Hi all,
I am a complete beginner when it comes to Epsilon (or in fact the field of meta-modeling, model transformations etc). My question is, I have created a GMF editor from one Ecore model, and have another Ecore model for some text based language that is generated by the GMF editor. Is it possible to verify links between these two models using Epsilon?
For example, If I create 3 elements of a one type in my GMF editor, then I would like to ensure that these 3 elements appear in the text based output.
Alternatively, is it possible to somehow verify that certain elements from the Ecore model for the GMF editor map to elements in the Ecore model for the text based language?
I have no idea if this kind of thing is possible with Epsilon, so any help would be much appreciated.
Thanks
Phil
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| Re: [Epsilon] Complete Beginner: Is this possible? [message #755390 is a reply to message #755375] |
Tue, 08 November 2011 05:42  |
| Eclipse User |
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Hi Phil,
Why do you need to verify the links? If you generate the text-language
elements from the visual language, the correspondence will be exactly as
expressed in the generation rules.
I assume, that I misunderstand something about your question, though ;-)
Best,
Steffen
On 08/11/2011 10:05, 366409 wrote:
> Hi all,
>
> I am a complete beginner when it comes to Epsilon (or in fact the
> field of meta-modeling, model transformations etc). My question is, I
> have created a GMF editor from one Ecore model, and have another Ecore
> model for some text based language that is generated by the GMF
> editor. Is it possible to verify links between these two models using
> Epsilon?
>
> For example, If I create 3 elements of a one type in my GMF editor,
> then I would like to ensure that these 3 elements appear in the text
> based output.
>
> Alternatively, is it possible to somehow verify that certain elements
> from the Ecore model for the GMF editor map to elements in the Ecore
> model for the text based language?
>
> I have no idea if this kind of thing is possible with Epsilon, so any
> help would be much appreciated.
>
> Thanks
> Phil
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| Re: [Epsilon] Complete Beginner: Is this possible? [message #755425 is a reply to message #755399] |
Tue, 08 November 2011 08:14 |
| Eclipse User |
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Hi Phil,
On 08/11/2011 11:04, 366409 wrote:
> Hi Steffen,
>
> This is as I thought, although I was recently questioned when
> presenting work on whether I had considered using Epsilon to "verify"
> the translation from Graphical elements to the textual language. I
> have been reading around, and the more I read the less sense this
> question makes. Maybe another question which makes more sense is does
> Epsilon provide any features to support model to text transformation?
Yes, EGL, the Epsilon Generation Language.
> Also, from what I have read, I understand that Epsilon (EVL to be more
> precise) can be used to write constraints on models and can be used to
> show errors in the GMF editor. I wonder if the question I was
> originally asked relates to this, as this would stop any "junk" or
> broken code being generated from incomplete GMF models.
This seems to make more sense, at least :-)
Best,
Steffen
>
> Thanks for the quick response, and I hope my questions are not too
> naive...
>
> Phil
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