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[Eugenia] using properties of embedded classes in labels? [message #1400884]

Mon, 14 July 2014 21:30

Scott Finnie

Messages: 94
Registered: October 2011

Member

Hi

I have a simplified UML class diagram editor working with Eugenia. The `Association` class currently looks like this:

@gmf.link(label = "name", source = "classA", target="classB")
class Association extends NamedModelElement {
	ref  FClass classA;
	attr String phraseA;
	attr String multiplicityA;
	ref  FClass classB;
	attr String phraseB;	
	attr String multiplicityB;
}

which works, but the repeating elements are inelegant. I'd rather do something like this:

@gmf.link(label = "name", source = "roleA.participant", target="roleB.participant")
class Association extends NamedModelElement {
	val  RelRole roleA;
	val  RelRole roleB;
}

class RelRole {
	ref  FClass participant;
	attr String relPhrase;
	attr String multiplicity;
}

However that results in an error at build time. Is there a way to achieve this? Apologies if it's documented somewhere, didn't show up in googling.

Thanks.

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Re: [Eugenia] using properties of embedded classes in labels? [message #1400906 is a reply to message #1400884]

Mon, 14 July 2014 22:15

Dimitris Kolovos

Messages: 2165
Registered: July 2009
Location: York, UK

Senior Member

Hi Scott,

Referencing properties of nested classes is not supported in Eugenia. I can't really think of a good workaround for this I'm afraid...

Cheers,
Dimitris

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