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How to get instance of stereotype as generated ecore class instance [message #1790507]

Tue, 12 June 2018 02:01

Eclipse User

If I create a UML profile, and then generate the Ecore representation and its generated code we get a java interface and class for each stereotype in the profile. Now if I apply the profile to a UML model, and then apply one of its stereotypes to some element, lets say component A, I would like to programatically take A as input and be able to get the instance of the java class generated for that stereotype.

I have been spinning my wheels on this for a while now and I suspect either that it is not possible or (more likely) I am misunderstanding something about how to use UML profiles. Any help would be appreciated. If you need more information to help, just let me know and I will explain what I am doing in more detail.

Thanks for your time.
-Randall

Re: How to get instance of stereotype as generated ecore class instance [message #1790548 is a reply to message #1790507]

Tue, 12 June 2018 13:56

Eclipse User

Hi, Randall,

An Element to which stereotypes are applied can provide the EObject implementations of those stereotype instances via the Element::getStereotypeApplications() operation. These EObjects, in turn, provide their EClasses via the EObject::eClass() operation. And an EClass provides the generated Java interface that it represents via EClass::getInstanceClass().

Also, the Element::getStereotypeApplication(Stereotype) operation finds the particular instance of an applied stereotype if you know which one you're looking for.

HTH,

Christian

Re: How to get instance of stereotype as generated ecore class instance [message #1790573 is a reply to message #1790507]

Wed, 13 June 2018 03:30

Eclipse User

Hi,

There's also a shortcut from UMLUtil:

UMLUtil.getStereotypeApplication(Element, Class<T>)

Where Class<T> is your generated stereotype interface.

MyStereotype s = UMLUtil.getStereotypeApplication(myComponentA, MyStereotype.class);

HTH,
Camille

Re: How to get instance of stereotype as generated ecore class instance [message #1793795 is a reply to message #1790573]

Wed, 15 August 2018 22:02

Eclipse User

I forgot to reply earlier, but just wanted to say thanks for the help. It solved my problem.

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