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Re: [modeling-pmc] UML2 and Photon

Hi

Today, I think the EMF GenModel changes should just be an opportunity. The new EAnnotation support should allow UML's

  <genAnnotations source="http://www.eclipse.org/emf/2002/GenModel/importer/org.eclipse.uml2.uml.ecore.importer">
    <details key="DUPLICATE_FEATURES" value="PROCESS"/>
    <details key="DUPLICATE_FEATURE_INHERITANCE" value="PROCESS"/>
...

to be visible and editable in the EMF editors.

However again today, with 2 bug fixes on the new support not yet available in an N-build, it is not possible to rebuild the OCLUML.uml models; the genmodel takes a long time as usual but many of the generated files terminate after the imports, which is often an indication of bad templates.

I suspect that the EMF template evolution to support @deprecated/@since tags is breaking for UML2. There is new GenModelUtil API used by the templates and since this is build time API there is no need to provide runtime-level conditionalization. Anything that uses EMF 2.14 code generation must support EMF 2.14. For OCL and QVTd, I just had to add an extra import of GenModelUtil and merge my variant Class.javajet with the evolved EMF Class.javajet. For QVTd where code generation can be a user-compile time activity, I considered adding conditionalisation on all the new API so that QVTd would be Oxygen installable, I'm still considering but since QVTd graduates this year I might decide that it graduates on current code unless UML has died....

    Regards

        Ed Willink


On 26/09/2017 08:21, Ed Merks wrote:

Sebastien

I think you are misinterpreting  "require UML2's extended GenModel to take action" as synonymous with "the changes are bad."

Any change (good or bad) to the GenModel.ecore affects (at least potentially) UML's extended GenModel implementation.

  http://git.eclipse.org/c/emf/org.eclipse.emf.git/log/plugins/org.eclipse.emf.codegen.ecore/model/GenModel.ecore

Also any change to templates (good or bad) affects (at least potentially) UML's specialized templates:

  http://git.eclipse.org/c/emf/org.eclipse.emf.git/log/plugins/org.eclipse.emf.codegen.ecore/templates/model/Class.javajet

We can all be thankful (and I certainly am!)  that Itemis consistently sponsors my contributions and that Dennis Hübner of TypeFox does the Releng work on my behalf.

Note that lack of signing support for Buckminster builds will become a significant problem for someone, or perhaps everyone, when the foundation disables that service.

Regards,
Ed


On 26.09.2017 08:03, GERARD Sebastien wrote:
Hi Ed,

Can you tell me what are the changes that have been made and will be bad for photon w.r.t. EMF generator part?

Thanks.
Best.
Seb.




Envoyé depuis mon smartphone Samsung Galaxy.


-------- Message d'origine --------
De : Ed Merks <ed.merks@xxxxxxxxx>
Date : 25/09/2017 18:11 (GMT+01:00)
Objet : Re: [modeling-pmc] UML2 and Photon

Kenn,

That's pretty bad for Papyrus, parts of OCL, and parts of EMF Compare.  :-(  And I'm not sure which other release-train parts are downstream of those parts...

Downstream consumers should note that parts of UML2 (i.e., the generator parts) don't work with the latest EMF (i.e., the generator parts of it) because any changes I make to the GenModel  (and I made many changes recently) require UML2's extended GenModel to take action.  So we can't just feed the Oxygen version of UML2 into the Photon train (at least not all of UML2's parts).

Regards,
Ed


On 25.09.2017 16:54, Kenn Hussey wrote:
PMC,

I just wanted to give you a heads up that there are currently no plans for UML2 to participate in the upcoming Photon simultaneous release, due to lack of funding. Unfortunately, this means that dependencies will break when the aggregation file is disabled by the EMO immediately following M4.

If anyone is interested (or knows someone who might be interested) in helping ensure that UML2 is kept up to date and that it can participate in the Photon release, please reach out to me directly.

Thanks,

Kenn



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