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OCL in XText Editor [message #969881]

Sat, 03 November 2012 16:53

Andrea Sindico

Messages: 266
Registered: November 2010

Senior Member

I admit I am new to the Complete OCL.
I'd like to use it as a validation means instead of the XText default validation as described in this very nice presentation http://www.slideshare.net/EdWillink/enrich-your-models-with-ocl.
In this way I could exploit the same OCL to perform validation before further QVT/MOFM2T(ACCELEO) transformations.
To this end I have started with an empty .ocl file and I am trying to define the first import.
The problem is that it depicts this error:

Unresolved import 'http:/...' : White spaces are required between publicId and systemId.

What am I doing wrong?

Follow me on Twitter @andreasindico

[Updated on: Sat, 03 November 2012 17:07]

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Re: Eclipse in XText Editor [message #969899 is a reply to message #969881]

Sat, 03 November 2012 17:07

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

You don;'t provide much to go on...

An import of http:/... is an import of a registered package using its
nsURI. It would appear that this p[ackage is not registered.

If instead you use a platform:/... import then you can reference your
*.ecore or *.uml file.

Have you tried following the Complete OCL tutorial or examining the
Royal and Loyal example?

Regards

Ed Willink

On 03/11/2012 16:53, Andrea Sindico wrote:
> I admit I am new to Complete OCL. I'd like to use it as a validation
> means instead of the XText default validation as described in this
> very nice presentation
> http://www.slideshare.net/EdWillink/enrich-your-models-with-ocl.
> In this way I could exploit the same OCL to perform validation before
> further QVT/MOFM2T(ACCELEO) transformations.
> To this end I have started with an empty .ocl file and I am trying to
> define the first import. The problem is that it depicts this error:
>
> Unresolved import 'http:/...' : White spaces are required between
> publicId and systemId.
>
> What am I doing wrong?

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Re: Eclipse in XText Editor [message #969914 is a reply to message #969899]

Sat, 03 November 2012 17:27

Andrea Sindico

Messages: 266
Registered: November 2010

Senior Member

Hi Ed,
thank for your kind answer.
I have tried the platform:/resource/.. notation importing the Ecore as you suggested and it works.
However I guess I have to import the registered package in order to use it in a secondary Eclipse Application (which also executes the XText editor for the language to validate).
am I right?

Follow me on Twitter @andreasindico

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Re: Eclipse in XText Editor [message #969974 is a reply to message #969914]

Sat, 03 November 2012 18:25

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

It is certainly important to use consistent references to ensure that
project/plugin usages are respected.

Unfortunately this is not easy in standalone applications, and a variety
of modeling applications have a variety of inconsistently helpful
workarounds.

You may find org.eclipse.ocl.examples.domain.utilities.ProjectMap helpful.

A couple of recent EMF changes suggest that these difficulties may be
much reduced in Kepler.

Regards

Ed Willink

On 03/11/2012 17:27, Andrea Sindico wrote:
> Hi Ed,
> thank for your kind answer. I have tried the platform:/resource/..
> notation importing the Ecore as you suggested and it works. However I
> guess I have to import the registered package in order to use it in a
> secondary Eclipse Application (which also executes the XText editor
> for the language to validate).
> am I right?

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Re: Eclipse in XText Editor [message #970195 is a reply to message #969974]

Sat, 03 November 2012 22:51

Andrea Sindico

Messages: 266
Registered: November 2010

Senior Member

Ed, the last line of slide 66 is hidden by a red box.

http://www.slideshare.net/EdWillink/enrich-your-models-with-ocl

what is the code to pass the EValidator to the registar?

Thank you

Regards

Follow me on Twitter @andreasindico

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Re: Eclipse in XText Editor [message #970200 is a reply to message #970195]

Sat, 03 November 2012 22:58

Andrea Sindico

Messages: 266
Registered: November 2010

Senior Member

OK I guess it was

registrar.register(ePackage, new CompleteOCLEObjectValidator(ePackage,oclUri));

but it says it is deprecated Sad

Follow me on Twitter @andreasindico

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Re: Eclipse in XText Editor [message #970250 is a reply to message #970200]

Sat, 03 November 2012 23:55

Andrea Sindico

Messages: 266
Registered: November 2010

Senior Member

Although deprecated it works fine. The only thing I don't like is that the whole context, in the wrong dsl, is highlighted as error, not just the wrong token. Is there any way to just highlight it?

Follow me on Twitter @andreasindico

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Re: Eclipse in XText Editor [message #971024 is a reply to message #970200]

Sun, 04 November 2012 14:13

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

On 03/11/2012 22:58, Andrea Sindico wrote:
> OK I guess it was
>
> registrar.register(ePackage, new
> CompleteOCLEObjectValidator(ePackage,oclUri));
>
> but it says it is deprecated :(
If you look at the deprecated implementation, it is

@Deprecated
public CompleteOCLEObjectValidator(@NonNull EPackage ePackage,
@NonNull URI oclURI) {
this(ePackage, oclURI, null);
}

so just add a null to make the message go away. Ideally pass a
pre-existing metaModelManager to avoid loading all your meta-models
redundantly to create another metaModelManager.

Regards

Ed Willink

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Re: Eclipse in XText Editor [message #971033 is a reply to message #970195]

Sun, 04 November 2012 14:23

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Seems to be an ODP loading issue. The original is fine at
http://www.eclipse.org/modeling/mdt/ocl/docs/publications/EclipseCon2011Tutorial/EnrichingWithOCL.odp.

Regards

Ed Willink

On 03/11/2012 22:51, Andrea Sindico wrote:
> Ed, the last line of slide 66 is hidden by a red box.
>
> http://www.slideshare.net/EdWillink/enrich-your-models-with-ocl
>
> what is the code to pass the EValidator to the registar?
>
> Thank you
>
> Regards

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Re: Eclipse in XText Editor [message #971038 is a reply to message #970250]

Sun, 04 November 2012 14:30

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

It's only software; I'm sure it's possible....

Realistically, the API for detecting an error needs to be better. It's
probably possible to get Xtext to show a narrower context. However this
won't happen until I have got all the UML and OCL OCL constraints code
generated and being used live.

I don't understand the "wrong dsl" comment. Perhaps you need to share
some screenshots.

Regards

Ed Willink

On 03/11/2012 23:55, Andrea Sindico wrote:
> Although deprecated it works fine. The only thing I don't like is that
> the whole context, in the wrong dsl, is highlighted as error, not just
> the wrong token. Is there any way to just highlight it?

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