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Using profiles as Metamodels in ATL EMFTVM [message #1795840]

Mon, 01 October 2018 00:12

omar hassane

Messages: 12
Registered: February 2018

Junior Member

Hello,

I was trying to execute a transformation using the ATL EMFTVM engine, that takes models conforming to UML profiles as Metamodels, but when I execute the transformation I get the following error :

org.eclipse.m2m.atl.emftvm.util.VMException: Error during module loading: org.eclipse.uml2.uml.internal.impl.ProfileImpl cannot be cast to org.eclipse.emf.ecore.EPackage

Is there any possibility that I can use profiles as metamodels without converting them to ecore.

Thank you.

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Re: Using profiles as Metamodels in ATL EMFTVM [message #1798450 is a reply to message #1795840]

Mon, 19 November 2018 10:50

Dennis Wagelaar

Messages: 589
Registered: September 2012
Location: Belgium

Senior Member

It is technically possible to load the internal Ecore representation of a UML Profile as a metamodel, but this is not recommended.
Even though UML2 converts Profiles to an Ecore representation whenever you click "Define Profile", this Ecore representation is not public API, and tends to change with newer releases. Also, as you define multiple versions of the Profile, multiple Ecore representations will be embedded within the Profile, and causes confusion within ATL.
The only stable way to interact with UML Profiles is via the UML2 API (e.g. "getAppliedStereotypes()", etc.).

Cheers,
Dennis

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