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Association annotation [message #1697814]

Mon, 08 June 2015 11:08

Eclipse User

Hi,

In Mars RC3 I'm seeing that associations I create in the Class Diagram
editor have an annotation:

source: org.eclipse.papyrus
detail: nature -> UML_Nature

What is the purpose of this annotation? What will break if I delete it
from all of my associations?

Thanks,

Christian

Re: Association annotation [message #1697815 is a reply to message #1697814]

Mon, 08 June 2015 11:14

Eclipse User

Hi,

I can only suppose that this is used to distinguish between UML and SysML associations, since SysML Associations have a different semantics and are not stereotyped. I don't expect any side-effect if you delete the Annotation, unless you are mixing UML and SysML in the same model

HTH,
Camille

Re: Association annotation [message #1698016 is a reply to message #1697815]

Wed, 10 June 2015 07:59

Eclipse User

I have also observered that Papyrus adds the kind of annotation to associations mentioned by Christian.

Does that mean that if I programmatically want to create associations in a model, using the UML2 API, have to add the same kind of annotation for the models to be "Papyrus compliant" and to avoid any future conflicts?

This also raise the question: are there any other kind of (mandatory) annotations on other elements to be aware of that must be added when creating a model programmatically by using the UML2 API?

/Thomas

Re: Association annotation [message #1698025 is a reply to message #1698016]

Wed, 10 June 2015 09:03

Eclipse User

Hi Thomas,

No, these annotations are not mandatory. That's a tooling trick to solve a SysML trick, but that shouldn't have any critical impact. And definitely no impact at all for non-sysml models. We'll do better (without any trick) for SysML 1.4

Camille

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