EA and Associations

[Michael Müller]

Hi,

i have an association. In the EA(8.0) Properties Dialog at the Tab "Source Role" i set the property Navigability = Navigable. 1. But my Association is not navigable:
Xpand Code:

«FOREACH this.AllAssociations().typeSelect(uml::Association) AS ass»
«FOREACH ass.ownedEnd.select(e|e.type.name!=name) AS a»
//1. name!=name «a.name» «a.isNavigable()»
«ENDFOREACH» 
«ENDFOREACH»
Java Code:
public static EList getAllAssociations(Classifier classifier) {
return classifier.getAssociations();
}
[code]
2. I add a qualifier in this association, but the collection is also empty
[code] «ass.qualifier.size» //always 0 [/end]
3. How could i get teh direction of the association? I tried:
[code] «ass.associationEnd» [/end] but its always null!
Has anybody an idea how to solve this problems? Or does the EA_Exporter not export this information?

[Michael Müller]

oh sorry could you edit my code tags, they are wrong.

[Ueli Brawand]

Hi Micheal

EA_Exporter export the navigability information.

Here is an extension that works for me

uml::Property sourceEnd(uml::Association this):
    let meList = memberEnd.select(e|!e.isNavigable()):
    meList.size == 1 ? meList.get(0) : null;

This extension is available in the exporter as following:

extension net::cmp4oaw::uml2::support::UMLSupport

Hope this helps.

Ueli

[Ueli Brawand]

Oh, now I see why it isn't working.

You use ownedEnd() instead of memberEnd().

ownedEnd() are for associations where navigability is not set!!

Ueli

[Michael Müller]

Ahhhh nice =) that works =) if i use memberEnd()…

But how does i get my other information? The qualifiers and the direction?

[Ueli Brawand]

Direction is not a property of UML model. This is somerthing internal of EA.

In UML there is no "direction". An association has two or more ends. Each end could be navigable, non-navigable or not defined. If it's navigable in the classifier of the oposite end a property is added. So if you need a direction, you have to find it out yourself.

Qualifiers are not supported yet. If you need them, pleas add a feature request.

:-)

[Michael Müller]

thanks =)…

i done a feature request.

[Michael Müller]

Can you estimate the time, when the next realease is available (with the qualifiers?

[Ueli Brawand]

Hi Michael
I'm working on it and I hope it will be finished until end of this week. Then I prepare a release for you for testing.

Regards