Eclipse Community Forums: UML2

Help

Home

Home » Modeling » UML2 » OCL expression (attributes of different should not have the same name)

Show: Today's Messages :: Show Polls :: Message Navigator

OCL expression [message #1196290]

Tue, 19 November 2013 10:44

dodo babab

Messages: 6
Registered: January 2013

Junior Member

Hi,

Please, can anyone help me with this problem.
I have to classes in my meta model, each of them has an attribute (e.g., trustorRole and trusteeRole) The date type (eTupe) for both is the enumeration class (e.e.g, serviceRequester, serviceProvider). I want to create and OCL expression which defines that the attribute name of these two classes should not be the same in the instance of the meta model. To be more clear, my meta model look like in the picture below.

Best Regards

Attachment: forum.png
(Size: 15.57KB, Downloaded 276 times)

Report message to a moderator

Re: OCL expression [message #1196499 is a reply to message #1196290]

Tue, 19 November 2013 12:53

Ed Willink

Messages: 6082
Registered: July 2009

Senior Member

Hi

My first reaction was to use reflection which the Pivot-based OCL
supports, although OMG OCL does not (yet).

However a cleaner solution may occur at the metalevel by applying the
UniqueAttributeNames stereotype to Actors.

context UniqueAttributeNames
inv AttributeNamesAreUnique: Property.allInstances()->select(type =
base_Class)->isUnique(name)

(The above is untested)

Regards

Ed Willink

On 19/11/2013 10:44, dodo babab wrote:
> Hi,
>
> Please, can anyone help me with this problem.
> I have to classes in my meta model, each of them has an attribute (e.g., trustorRole and trusteeRole) The date type (eTupe) for both is the enumeration class (e.e.g, serviceRequester, serviceProvider). I want to create and OCL expression which defines that the attribute name of these two classes should not be the same in the instance of the meta model. To be more clear, my meta model look like in the picture below.
>
> Best Regards

Report message to a moderator

Re: OCL expression [message #1197118 is a reply to message #1196499]

Tue, 19 November 2013 19:16

dodo babab

Messages: 6
Registered: January 2013

Junior Member

Hi,

Thanks a lot for your answer, but I couldn't solve the problem.
Pleaseeee, if you have time can you have a look in my meta model.
Or, do you have any other idea. I need this result for my master thesis.

Thanks again. Regards
Dorina

Attachment: forum2.png
(Size: 10.35KB, Downloaded 273 times)

[Updated on: Tue, 19 November 2013 21:01]

Report message to a moderator

Re: OCL expression [message #1197313 is a reply to message #1197118]

Tue, 19 November 2013 21:25

Ed Willink

Messages: 6082
Registered: July 2009

Senior Member

Hi

Sorry. "I need this result for my master thesis." guarantees that I will
not help. Your thesis should represent your own work and research.

Regards

Ed Willink

On 19/11/2013 19:16, dodo babab wrote:
> Hi,
>
>
> Thanks a lot for your answer, but I couldn't solve the problem.
> Pleaseeee, if you have time can you have a look in my meta model.
> Or, do you have any other idea. I need this result for my master thesis.
>
> Thanks again. Regards
> Dorina
>
>

Report message to a moderator

Re: OCL expression [message #1198155 is a reply to message #1196290]

Wed, 20 November 2013 07:07

dodo babab

Messages: 6
Registered: January 2013

Junior Member

Thanks for your answer. The fact that I need this for my thesis doesn't implies that I will don't understand it. Becaouse I have to explain it and not just only create it in the meta model. It is better to say that I don't want to help you or I don't know how to do it (the truth).

Regards

Report message to a moderator

Previous Topic:	Binary serialization broken with UML2 Kepler ?
Next Topic:	update attributes of class programmatically

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Tue Oct 23 07:19:28 GMT 2018

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter