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Using OCL in Profiles in Papyrus in 10 Steps [message #1072271]

Mon, 22 July 2013 12:34

Ronan B

Messages: 273
Registered: July 2009

Senior Member

Hi,
Seeing as it is a little bit tricky to create OCL constraints on profiles in Papyrus, I have prepared a quick howto. The steps are compiled based on bugzilla issues/newsgroup messages and testing I have done.

1. Use at least Papyrus 0.10.0v201306121352 on Kepler 4.3.0
2. Create a Profile with a diagram
3. Create a Stereotype
4. Drag a UML MetaModel element from the UML 2.4.1 Metamodel <Package Import> and place on diagram
5. Draw and connect a "UML Extension" between your stereotype and the element selected in #4
6. Create a new constraint by dropping a "UML Constraint" on your diagarm. Ignore the ititial editor that pops up. It is no use as you must select a context first.
7. Select your constraint and then change the "Context" in the Properties editor. Set the context to your stereotype.
8. Now click your UML Constraint on the diagram and the OCL editor should pop up. This time it has a context.
9. Write your OCL constraint using the excellent editor.
10. Save the profile and define. Note: YOU MUST SELECT "Save OCL constraints into the definition". If you don't the OCL will not run. See issue https://bugs.eclipse.org/bugs/show_bug.cgi?id=411256

Regards,
Ronan

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Re: Using OCL in Profiles in Papyrus in 10 Steps [message #1072276 is a reply to message #1072271]

Mon, 22 July 2013 12:45

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

If you're using serious OCL constraints in profiles, I strongly
recommend installing the latest OCL I-build; currently

http://www.eclipse.org/modeling/download.php?file=/modeling/mdt/ocl/downloads/drops/4.2.0/I201307170419/mdt-ocl-Update-tools-I201307170419.zip

I've fixed some embarrassing bugs in the Kepler release where
- profile defined operations with OCL bodies fail to execute usefully
- profile defined enumerations fail to participate in evaluations usefully

Regards

Ed Willink

On 22/07/2013 13:34, Ronan B wrote:
> Hi,
> Seeing as it is a little bit tricky to create OCL constraints on
> profiles in Papyrus, I have prepared a quick howto. The steps are
> compiled based on bugzilla issues/newsgroup messages and testing I
> have done.
>
> 1. Use at least Papyrus 0.10.0v201306121352 on Kepler 4.3.0
> 2. Create a Profile with a diagram
> 3. Create a Stereotype
> 4. Drag a UML MetaModel element from the UML 2.4.1 Metamodel <Package
> Import> and place on diagram
> 5. Draw and connect a "UML Extension" between your stereotype and the
> element selected in #4
> 6. Create a new constraint by dropping a "UML Constraint" on your
> diagarm. Ignore the ititial editor that pops up. It is no use as you
> must select a context first.
> 7. Select your constraint and then change the "Context" in the
> Properties editor. Set the context to your stereotype.
> 8. Now click your UML Constraint on the diagram and the OCL editor
> should pop up. This time it has a context.
> 9. Write your OCL constraint using the excellent editor.
> 10. Save the profile and define. Note: YOU MUST SELECT "Save OCL
> constraints into the definition". If you don't the OCL will not run.
> See issue https://bugs.eclipse.org/bugs/show_bug.cgi?id=411256
>
> Regards,
> Ronan

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Re: Using OCL in Profiles in Papyrus in 10 Steps [message #1072343 is a reply to message #1072276]

Mon, 22 July 2013 15:03

Camille Letavernier

Messages: 952
Registered: February 2011

Senior Member

A few other notes:

- In the OCL preferences, set the executor to Pivot (Instead of the default LPG). Go to Window > Preferences > OCL > Change the value of "Executor targeted by the default OCL delegate"

This will fix some validation issues; see Bug 411603: [Evaluation exceptions] For specific constructs such as Let... In

It has been reported as an OCL bug, but it will most likely need to be fixed in Papyrus.

- For 4), you can also use the "Import Metaclass" tool from the palette
- For 7), to set the context of your constraint, you can also use the "Context link" tool from the palette.

Regards,
Camille

Camille Letavernier

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