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ATL: Navigating between model elements [message #17627] Wed, 21 February 2007 09:01 Go to next message
Eclipse UserFriend
Originally posted by: paul.gribben.gmail.com

Hello,

I'm using ATL2006 with Eclipse 3.2.1. Is it possible in ATL to navigate
from a model element to that element's parent. The element in question is
an EAttribute in an ecore metamodel, and I want a reference to its
containing EClass, but is has no direct reference to its parent.

I've read through the ATL User Guide and some ATL examples but didn't find
anything useful.

Thanks
Re: ATL: Navigating between model elements [message #17654 is a reply to message #17627] Wed, 21 February 2007 09:13 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: paul.gribben.gmail.com

I can answer my own question: The OclAny operation refImmediateComposite()
gives a ref to the immediate container
Re: ATL: Navigating between model elements [message #17667 is a reply to message #17654] Wed, 21 February 2007 13:51 Go to previous messageGo to next message
Eclipse UserFriend
Hi,

You can indeed use refImmediateComposite(), which returns the immediate
container of the element on which it is called.

Another possibility is to use a reference defined in the metamodel, when
it exists. In your case, this reference is eContainingClass, defined on
EStructuralFeature (EAttribute extends EStructuralFeature).

The following page has a visual representation of Ecore, in which you
can see the eContainingClass reference:
http://help.eclipse.org/help32/index.jsp?topic=/org.eclipse. emf.doc/references/javadoc/org/eclipse/emf/ecore/package-sum mary.html


Regards,

Frédéric Jouault

Paul Gribben wrote:
> I can answer my own question: The OclAny operation
> refImmediateComposite() gives a ref to the immediate container
>
Re: ATL: Navigating between model elements [message #17705 is a reply to message #17667] Thu, 22 February 2007 11:30 Go to previous message
Eclipse UserFriend
Originally posted by: paul.gribben.gmail.com

Thanks for that additional information - very useful.
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