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Get started with EMF Facet [message #714822]

Thu, 11 August 2011 10:54

Eclipse User

Hi all,

First, my use-case: I have an ecore model, jbi.ecore that I do not want
to edit since it relies on a specification. However, I want to add some
attributes to some Objects of this Ecore model (for example, I want to
add a "timeout" attribute to Service).
First question: is EMF-Facet covering this use-case? (this one is just
to ensure I clearly understood the goal of EMF-Facet)

Then my second question is: how to get started? I can't find any UI
entry for EMF Facet. Is this normal, or did my installation go wrong?

Thanks in advance,
--
http://mickaelistria.wordpress.com
http://twitter.com/#!/mickaelistria
http://www.petalslink.com

[Updated on: Tue, 16 August 2011 09:51] by Moderator

(no subject) [message #716050 is a reply to message #714822]

Tue, 16 August 2011 05:46

Eclipse User

Ok, I have seen the EMF Facet tables and so on, but I am still not sure
on whether EMF-Facet is what I need for my use case:
I'd like to add EStructuralFeatures to objects of an ecore model from an
external bundle, is it possible?

--
http://mickaelistria.wordpress.com
http://twitter.com/#!/mickaelistria
http://www.petalslink.com

Re: (no subject) [message #716130 is a reply to message #716050]

Tue, 16 August 2011 10:09

Eclipse User

You can do that by extending the ecore meta-model by means of inheritance but EMF Facet won't help you there as it only adds transient attributes.

Re: (no subject) [message #716140 is a reply to message #716130]

Tue, 16 August 2011 10:26

Eclipse User

On 16/08/2011 16:09, Sylvain EVEILLARD wrote:
> You can do that by extending the ecore meta-model by means of
> inheritance but EMF Facet won't help you there as it only adds transient
> attributes.

Ok thanks a lot.
Concerning inheritance, my approach starts from the other side. It is
mode "aspect-oriented" while it consists in adding behavior and semantic
in a model from an external contribution.

Regards,
--
http://mickaelistria.wordpress.com
http://twitter.com/#!/mickaelistria
http://www.petalslink.com

Re: (no subject) [message #716530 is a reply to message #716130]

Wed, 17 August 2011 11:54

Eclipse User

> it only adds transient attributes.

That's right. Non-derived attributes/references will provided in the next version.

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