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[ATL] How can I navigate to find a container or parent of a object? [message #91558]

Tue, 07 October 2008 18:49

Eclipse User

Originally posted by: guo.mci.sdu.dk

I have two metamodels building in Ecore, and am doing the transformation
using ATL.

How can I navigate to find a container or parent of a object?
For example, in the source metamodel, I have a object called
"Container", it has a sub object called "Child". The relation between
them is aggregation called "getChild", but from the "Child" there has NO
way to get the "Container".

There is another object "ExternalClass", which is associated to the
"Child" object by relation "link".

The question is: How can I get the "Container" from the "ExternalClass"?

By using "ExternalClass.link", I could get the object "Child". How to
get the "Container" next?

Best Regards,
Yu Guo

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Re: [ATL] How can I navigate to find a container or parent of a object? [message #91574 is a reply to message #91558]

Tue, 07 October 2008 22:33

Eclipse User

Originally posted by: freddy.allilaire.univ-nantes.fr

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Hi Yu Guo,

If there is no reference "child to parent" in your metamodel, you could
use refImmediateComposite() operation. refImmediateComposite() is a
reflective operation that returns the immediate composite (e.g. the
immediate container).

You will find an example here:
http://www.eclipse.org/m2m/atl/basicExamples_Patterns/articl e.php?file=Port/index.html
in the last section.

HTH

Regards,
Freddy.

Yu Guo a

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Re: [ATL] How can I navigate to find a container or parent of a object? [message #91930 is a reply to message #91574]

Thu, 09 October 2008 19:02

Eclipse User

Originally posted by: jbocanegra.uniamazonia.edu.co

Hi Freddy.

Is there some opcion like refImmediateComposite() for QVTO???

Jos

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Re: [QVTO] How can I navigate to find a container or parent of a object? [message #92007 is a reply to message #91930]

Fri, 10 October 2008 11:08

Freddy Allilaire

Messages: 130
Registered: July 2009

Senior Member

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Hi Jos

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