Home » Eclipse Projects » Sirius » Validation problems: "Invalid Type: viewpoint::DragAndDropTarget"(Unable to locate the cause of a series of validation problems "Invalid Type: viewpoint::DragAndDropTarget")
| Validation problems: "Invalid Type: viewpoint::DragAndDropTarget" [message #1696338] |
Mon, 25 May 2015 20:58  |
 Ryan Schimpel
Messages: 7
Registered: May 2015 |
Junior Member |
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Hi there!
I'm relatively new to Sirius; in fact, I was just introduced to it for the first time two or three weeks ago. While I have gotten a pretty good grasp of how to use Sirius , I've been running into a serious issue where I'm getting a bunch of errors during validation. To be specific, when I attempt to validate my .odesign model (or in some cases, when I try to create a new diagram representation), I get a number of errors saying:
"Invalid Type: viewpoint::DragAndDropTarget"
The issue is that it sometimes causes the generated diagram representation to appear incorrectly; I say sometimes because there have been some cases when the outcome is correct. When it doesn't work, I literally have to restart Eclipse in order to try to fix it; nothing else seems to have any effect. That being said, having to do so every couple of minutes quickly becomes frustrating and hurts my productivity.
Initially, I thought I had made some mistake and that I had forgotten to add the appropriate Sirius metamodel(s) to the diagram element in the VSM; this is required to in order to get some types to resolve properly. However, I tried removing all metamodels (i.e. removing all restrictions) and it still ended up happening.
I've tried a variety of other things and none of them seem to be working.
Do you know what I'm doing wrong here? Or is this a bug in Sirius?
Thanks in advance for your help! 
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| Re: Validation problems: "Invalid Type: viewpoint::DragAndDropTarget" [message #1696471 is a reply to message #1696338] |
Tue, 26 May 2015 15:13  |
Esteban Dugueperoux
Messages: 472
Registered: July 2009 |
Senior Member |
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Hi Ryan,
Which release of Sirius do you use? I see in your odesign you reference
only your business metamodel. If you have "viewpoint::DragAndDropTarget"
expression in your odesign, you should also reference Sirius metamodel,
"http://www.eclipse.org/sirius/1.1.0",
"http://www.eclipse.org/sirius/diagram/1.1.0" or others according to
what you reference.
In addition DragAndDropTarget EClass comes from diagram Sirius metamodel
and not viewpoint then you should use "diagram::DragAndDropTarget"
expression.
Best Regards.
Le 26/05/2015 15:59, Ryan Schimpel a écrit :
> Hi there!
> I'm relatively new to Sirius; in fact, I was just introduced to it for the first time two or three weeks ago. While I have gotten a pretty good grasp of how to use Sirius , I've been running into a serious issue where I'm getting a bunch of errors during validation. To be specific, when I attempt to validate my .odesign model (or in some cases, when I try to create a new diagram representation), I get a number of errors saying:
>
> "Invalid Type: viewpoint::DragAndDropTarget"
>
> The issue is that it sometimes causes the generated diagram representation to appear incorrectly; I say sometimes because there have been some cases when the outcome is correct. When it doesn't work, I literally have to restart Eclipse in order to try to fix it; nothing else seems to have any effect. That being said, having to do so every couple of minutes quickly becomes frustrating and hurts my productivity.
>
> Initially, I thought I had made some mistake and that I had forgotten to add the appropriate Sirius metamodel(s) to the diagram element in the VSM; this is required to in order to get some types to resolve properly. However, I tried removing all metamodels (i.e. removing all restrictions) and it still ended up happening.
>
> I've tried a variety of other things and none of them seem to be working.
>
> Do you know what I'm doing wrong here? Or is this a bug in Sirius?
>
> Thanks in advance for your help! :)
>
--
Esteban Dugueperoux - Obeo
Need professional services for Sirius?
http://www.obeodesigner.com/sirius
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| Re: Validation problems: "Invalid Type: viewpoint::DragAndDropTarget&qu [message #1696636 is a reply to message #1696629] |
Wed, 27 May 2015 15:04 |
Esteban Dugueperoux
Messages: 472
Registered: July 2009 |
Senior Member |
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Hi Ryan,
There are known issues about validation with Acceleo 3 expressions, some
improvements will be done with Sirius 3.0. Could you provide a minimal
example to be able to reproduce or even test with an integration build
of Sirius 3.0? You can find milestones release of Sirius 3.0 at
https://wiki.eclipse.org/Sirius/Update_Sites .
Best Regards.
Le 27/05/2015 16:39, Ryan Schimpel a écrit :
> Hi Esteban,
> while that isn't a bad idea, the issue is that I
> never actually refer to the type DragAndDropTarget in any of my
> expressions; I simply haven't needed to use such a type in order to
> accomplish what are fairly standard operations. If I had explicitly
> used it somewhere, then I could potentially understand the errors that
> I'm getting but I never do; that is what makes it so mysterious...
>
> Upon careful inspection, it appears that the validator is complaining at
> the precondition expressions in the node / edge diagram elements; once I
> remove the expressions, the error goes away. I have no idea why
> something like "[self.oclIsKindOf(GroupNode) = false/]" is causing the
> Validator to throw errors about DragAndDropTarget; the expressions are
> valid and behave as expected. "self" in this context refers to the
> element of the given type being tested and is required to prevent
> multiple nodes in the diagram from being created for one particular
> semantic element; essentially, I'm dealing with a large type hierarchy
> where I only want the most specific node possible being created for each
> semantic element.
>
> Any idea why the validator dislikes these expressions? Am I doing
> something wrong?
--
Esteban Dugueperoux - Obeo
Need professional services for Sirius?
http://www.obeodesigner.com/sirius
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