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problem with "source.constraint" Eugenia annotation [message #1062272]

Thu, 06 June 2013 22:07

Ilias Gerostathopoulos

Messages: 3
Registered: June 2013

Junior Member

Hello,

I am just trying to add a simple OCL constraint to my diagram, the one that prohibits link self-reference.
Even though I can add it when manually by changing the gmfmap model, I cannot make it work with the Eugenia annotation ("source.constraint"). Is there a bug here? Or am I missing something? I am using the latest Epsilon bundle.

Here is a sample Emfatic code to reproduce the problem:

@namespace(uri="test", prefix="test")
@gmf(foo="bar")
package test;

@gmf.diagram(foo="bar")
class Test {
	val Clazz[*] classes;
	val Relation[*] relations;
}

@gmf.node(figure="rectangle")
class Clazz {
   attr String name;
}

@gmf.link(source="start", target="end", 
	source.constraint="self <> oppositeEnd") 
class Relation {
   ref Clazz[1] start;
   ref Clazz[1] end;
}

Thanks for any help!

Ilias

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Re: problem with "source.constraint" Eugenia annotation [message #1062405 is a reply to message #1062272]

Fri, 07 June 2013 14:33

Antonio Garcia-Dominguez

Messages: 594
Registered: January 2010
Location: Birmingham, UK

Senior Member

According to the bug report, this is only available in the latest interim version, and not in the latest stable version (1.0):

https://bugs.eclipse.org/bugs/show_bug.cgi?id=400569

Have you installed the latest interim release?

By the way, you forgot to define a label for Clazz, and the 'foo="bar"' bits are not necessary anymore:

@namespace(uri="test", prefix="test")
@gmf
package test;

@gmf.diagram
class Test {
	val Clazz[*] classes;
	val Relation[*] relations;
}

@gmf.node(figure="rectangle", label="name")
class Clazz {
   attr String name;
}

@gmf.link(source="start", target="end", 
	source.constraint="self <> oppositeEnd") 
class Relation {
   ref Clazz[1] start;
   ref Clazz[1] end;
}

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Re: problem with "source.constraint" Eugenia annotation [message #1062421 is a reply to message #1062405]

Fri, 07 June 2013 15:18

Ilias Gerostathopoulos

Messages: 3
Registered: June 2013

Junior Member

Okay, getting the interim release was the solution. Thanks!

BTW, if you make a note of this on the starters' tutorial
http://www.eclipse.org/epsilon/doc/articles/eugenia-gmf-tutorial/
might help other newbies like myself not to get confused about which features are included in the stable release and which are not.

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