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Metamodel in workspace in QVTO Problem [message #779461]

Sun, 15 January 2012 15:16

Eclipse User

Hi all,
Sorry for my English, I am beginner.
I have a problem with the use of a metamodel in workspace from a QVTO' transformation.

I have defined the following mapping:
<mapping sourceURI="rdbExtended/rdb" targetURI="platform:/resource/rdbExtended/model/rdbExtended.ecore"/>

And this is a piece of my transformation:

modeltype RDB uses 'rdbExtended/rdb';
--IN THIS WAY DOES NOT WORK:
--modeltype RDB uses 'platform:/resource/rdbExtended/model/rdbExtended.ecore';

transformation rdb2rdb(inout model: RDB);

main() {
  model.rootObjects()[RDB::Model]->map model2RModel();
}
...
...

THE PROBLEM IS THAT THE DEBUGGER SAYS THE Set 'model.rootObjects()[RDB::Model]' IS EMPTY, BUT ACTUALLY MY MODEL HAS AN ELEMENT OF TYPE Model.
See the attached image.
index.php/fa/6743/0/

This works if I use:

modeltype RDB uses 'ht..://www.eclipse.org/qvt/1.0.0/Operational/examples/rdb';

Thanks, Regards.
Gustavo.

Attachment: qvto.jpg
(Size: 85.91KB, Downloaded 1061 times)

Re: Metamodel in workspace in QVTO Problem [message #780363 is a reply to message #779461]

Tue, 17 January 2012 12:03

Eclipse User

Hi Gustavo

I suspect that you have my 'favourite' problem; meta-model schizophrenia.

You are referencing the same meta-model by two different names and so
you have two distinct copies. You loaded a 'left-hand' Model but are
transforming 'right-hand' Models.

Make sure you only use one of platform: ... or http: ... of file:... to
reference it.

Regards

Ed Willink

On 15/01/2012 20:16, Gustavo Bartolomeo wrote:
> Hi all,
> Sorry for my English, I am beginner.
> I have a problem with the use of a metamodel in workspace from a QVTO' transformation.
>
> I have defined the following mapping:
> <mapping sourceURI="rdbExtended/rdb" targetURI="platform:/resource/rdbExtended/model/rdbExtended.ecore"/>
>
> And this is a piece of my transformation:
>
>
> modeltype RDB uses 'rdbExtended/rdb';
> --IN THIS WAY DOES NOT WORK:
> --modeltype RDB uses 'platform:/resource/rdbExtended/model/rdbExtended.ecore';
>
> transformation rdb2rdb(inout model: RDB);
>
> main() {
> model.rootObjects()[RDB::Model]->map model2RModel();
> }
> ..
> ..
>
>
> THE PROBLEM IS THAT THE DEBUGGER SAYS THE Set 'model.rootObjects()[RDB::Model]' IS EMPTY, BUT ACTUALLY MY MODEL HAS AN ELEMENT OF TYPE Model.
> See the attached image.
>
>
> This works if I use:
>
> modeltype RDB uses 'ht..://www.eclipse.org/qvt/1.0.0/Operational/examples/rdb';
>
>
> Thanks, Regards.
> Gustavo.
>

Re: Metamodel in workspace in QVTO Problem [message #817876 is a reply to message #780363]

Sat, 10 March 2012 15:15

Eclipse User

Thanks Ed,
In this case the problem was the use of dynamic instances.
I built an editor for my local metamodel.
Then create an instance using the editor, and the transformation worked!

Re: Metamodel in workspace in QVTO Problem [message #818148 is a reply to message #817876]

Sun, 11 March 2012 01:10

Eclipse User

Hi Gustavo

What you describe is a workaround that works for you.

I am successfully using QVTo for a cascade of transformations without
generating a Java model, let alone a Java editor.

Regards

Ed Willink

On 10/03/2012 20:15, Gustavo Bartolomeo wrote:
> Thanks Ed,
> In this case the problem was the use of dynamic instances.
> I built an editor for my local metamodel.
> Then create an instance using the editor, and the transformation worked!
>

Re: Metamodel in workspace in QVTO Problem [message #818153 is a reply to message #817876]

Sun, 11 March 2012 01:10

Eclipse User