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Home » Modeling » EMF "Technology" (Ecore Tools, EMFatic, etc)  » Validation & OCL
Validation & OCL [message #577191] Tue, 09 May 2006 08:25
asha is currently offline ashaFriend
Messages: 2
Registered: July 2009
Junior Member

One Constraint from UML 1.3 spec : "No Attributes may have the same name
within a Classifier."

Various model update scenario could be adding attribute for classifier ,
modifying attribute name , deletion of attribute.

When I specify constraint as follows it can address adding attribute

<constraint lang="OCL" ...>
<target class="Classifier">
<event name="Set">
<feature name="attribute" />
self.feature->select ( a | a.oclIsKindOf (Attribute) )->forAll
( p, q | = implies p = q )

But it does not address modifying of attribute name. How to specify such
indirect event for the target classes using validation framework?

Thanks and Regards,
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