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What is the best strategy to solve my Papyrus Model errors [message #855437]

Tue, 24 April 2012 16:35

Eclipse User

Hi,

I see a small red box with an inside x on my Papyrus Project.
I can list the related problems in the Problems tab.
But how should I proceed to correct them ?

Should I investigate with in the UML Meta model ?
Is there a list of Problem -> How to solve
synthesis somewhere ?

Regards.

Re: What is the best strategy to solve my Papyrus Model errors [message #856018 is a reply to message #855437]

Wed, 25 April 2012 05:44

Eclipse User

Hi,

The red box on you Papyrus Project means that markers has been added to Papyrus file to notify that Papyrus has encountered some errors.
In Papyrus in mainly when you try to validate a model and some constraints are violated.
If you want them to disappear you can simply delete from the problem view. But next time you will validate your model if the constraints are still not corrected the problems will reappear.

Regards,

Re: What is the best strategy to solve my Papyrus Model errors [message #856037 is a reply to message #856018]

Wed, 25 April 2012 06:00

Eclipse User

hHi again,
I have just remembered that you can also use contextual menu to remove markers from you Papyrus file.
See :
-> http: //imgur.com/8spkQ
or
-> Attached document.

Regards,

Arthur Daussy

Attachment: removeMarkers.png
(Size: 82.25KB, Downloaded 215 times)

Re: What is the best strategy to solve my Papyrus Model errors [message #856250 is a reply to message #856037]

Wed, 25 April 2012 09:56

Eclipse User

As far as I know, Papyrus doesn't provide anything yet to help the user fixing the errors. The tool doesn't provide any "quickfix" feature.

Re: What is the best strategy to solve my Papyrus Model errors [message #856257 is a reply to message #856250]

Wed, 25 April 2012 10:04

Eclipse User

Thanks to all.
I do wish to make these errors disappear.
I wish to treat them, and correct my model.
What I understand, is that Papyrus make some constraint checking
and provide me with warnings.

Papyrus must of provided these errors based on ocl-like list of
assumptions.

Q1 - Is my guess correct ?
Q2 - If yes, where are these assumptions located, in the UML metamodel,
or based on Papyrus users experiences ?
Q3 - Are these errors subjected to make Papyrus unable to read the model
when restarting ?

Thanks in advance.

[Updated on: Wed, 25 April 2012 10:05] by Moderator

Re: What is the best strategy to solve my Papyrus Model errors [message #856276 is a reply to message #856257]

Wed, 25 April 2012 10:20

Eclipse User

Quote:

Papyrus must of provided these errors based on ocl-like list of
assumptions.

Yes ; the constraints have been extracted from the UML specification (I think, however, that not all of them are implemented).

Quote:

If yes, where are these assumptions located, in the UML metamodel,
of based on Papyrus users experiences ?

The constraints are specified in the UML spec, and implemented in the org.eclipse.uml2.uml plug-in (org.eclipse.uml2.uml.util.UMLValidator).

Quote:

Q3 - Are these errors subjected to make Papyrus unable to read the model
when restarting ?

Probably not ; the UML validation is strictly semantic. Saving a model with validation errors shouldn't be a problem. However, the validator can sometimes detect errors which are not semantic (e.g. a reference to another UML Model which doesn't exist anymore). This is not a UML error, but the validator may detect it, and it may prevent you from opening the diagram in some cases.

Re: What is the best strategy to solve my Papyrus Model errors [message #856277 is a reply to message #856276]

Wed, 25 April 2012 10:23

Eclipse User

Excellent answer, Regards (Merci).

Re: What is the best strategy to solve my Papyrus Model errors [message #856291 is a reply to message #856276]

Wed, 25 April 2012 10:35

Eclipse User

Hi
>
> The constraints are specified in the UML spec, and implemented in the
> org.eclipse.uml2.uml plug-in (org.eclipse.uml2.uml.util.UMLValidator).
>
Most of them are present but manually implemented. This solves the
problem that the OCL in the UML specification has many hundreds of
errors, but does not guarantee that the MDT/UML2 implementation matches
the intent of the UML specification.

For the forthcoming UML 2.5 specification, the OCL has been put through
OCL tooling to remove syntactic and semantic errors. Some of the OCL was
highly suspect and has been rewritten. It is possible the MDT/UML2
realisation of the OCL for UML 2.5 (after Juno) may use direct code
generation from the UML specification.

Regards

Ed Willink

Re: What is the best strategy to solve my Papyrus Model errors [message #856313 is a reply to message #856291]

Wed, 25 April 2012 10:58

Eclipse User

Thanks for the upcoming overview.

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