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OCL expression problem extending UML2 editor [message #474438]

Tue, 10 June 2008 18:45

Joel Greenyer

Messages: 170
Registered: July 2009

Senior Member

Hi,
I'm trying to build a customized/extended composite structure editor for my middleweight-extension of UML.
My model contains a specialized Port (in addition to the regular Port from UML) which shall be displayed differently.
I copied the Port Node Mapping entry from the compositeStructures.gmfmap and adapted it to fit the new Port.
While the editor works as expected with the regular UML Ports, I have a problem with the feature initializers of the new
Port. For example, there is one OCL feature initializer saying that feature "aggregation" should be
"AggregationKind::composite". When I create a new Port in the editor, I get the following error:

Expression problem:Unknown type ([AggregationKind, composite])body:AggregationKind::composite

Any ideas why that is?
Thanks

Joel

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Re: OCL expression problem extending UML2 editor [message #474439 is a reply to message #474438]

Tue, 10 June 2008 19:56

Eclipse User

Originally posted by: cdamus.zeligsoft.com

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Hi, Joel,

If the context classifier of your OCL init expression isn't in the UML
metamodel namespace, then you will have to fully qualify your
enumeration:

uml::AggregationKind::composite

HTH,

Christian

On Tue, 2008-06-10 at 20:45 +0200, Joel Greenyer wrote:

> Hi,
> I'm trying to build a customized/extended composite structure editor for my middleweight-extension of UML.
> My model contains a specialized Port (in addition to the regular Port from UML) which shall be displayed differently.
> I copied the Port Node Mapping entry from the compositeStructures.gmfmap and adapted it to fit the new Port.
> While the editor works as expected with the regular UML Ports, I have a problem with the feature initializers of the new
> Port. For example, there is one OCL feature initializer saying that feature "aggregation" should be
> "AggregationKind::composite". When I create a new Port in the editor, I get the following error:
>
> Expression problem:Unknown type ([AggregationKind, composite])body:AggregationKind::composite
>
> Any ideas why that is?
> Thanks
>
> Joel

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Hi, Joel, 
 
If the context classifier of your OCL init expression isn't in the UML metamodel namespace, then you will have to fully qualify your enumeration: 
 
    uml::AggregationKind::composite 
 
HTH, 
 
Christian 
 
 
On Tue, 2008-06-10 at 20:45 +0200, Joel Greenyer wrote:
<BLOCKQUOTE TYPE=CITE>
<PRE>
Hi,
I'm trying to build a customized/extended composite structure editor for my middleweight-extension of UML.
My model contains a specialized Port (in addition to the regular Port from UML) which shall be displayed differently.
I copied the Port Node Mapping entry from the compositeStructures.gmfmap and adapted it to fit the new Port.
While the editor works as expected with the regular UML Ports, I have a problem with the feature initializers of the new 
Port. For example, there is one OCL feature initializer saying that feature "aggregation" should be 
"AggregationKind::composite". When I create a new Port in the editor, I get the following error:

Expression problem:Unknown type ([AggregationKind, composite])body:AggregationKind::composite

Any ideas why that is?
Thanks

Joel
</PRE>
</BLOCKQUOTE>
</BODY>
</HTML>

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Re: OCL expression problem extending UML2 editor [message #474440 is a reply to message #474439]

Tue, 10 June 2008 21:14

Joel Greenyer

Messages: 170
Registered: July 2009

Senior Member

Hi Christian,
I already suspected it had to do with the metamodel namespace.
Now it works!

Thanks for the quick reply

Joel

Christian W. Damus wrote:
> Hi, Joel,
>
> If the context classifier of your OCL init expression isn't in the UML
> metamodel namespace, then you will have to fully qualify your enumeration:
>
> uml::AggregationKind::composite
>
> HTH,
>
> Christian
>
>
> On Tue, 2008-06-10 at 20:45 +0200, Joel Greenyer wrote:
>> Hi,
>> I'm trying to build a customized/extended composite structure editor for my middleweight-extension of UML.
>> My model contains a specialized Port (in addition to the regular Port from UML) which shall be displayed differently.
>> I copied the Port Node Mapping entry from the compositeStructures.gmfmap and adapted it to fit the new Port.
>> While the editor works as expected with the regular UML Ports, I have a problem with the feature initializers of the new
>> Port. For example, there is one OCL feature initializer saying that feature "aggregation" should be
>> "AggregationKind::composite". When I create a new Port in the editor, I get the following error:
>>
>> Expression problem:Unknown type ([AggregationKind, composite])body:AggregationKind::composite
>>
>> Any ideas why that is?
>> Thanks
>>
>> Joel

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