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[ATL] Use Java method in ATL [message #631093]

Wed, 06 October 2010 03:50

Eclipse User

Hello,

I'm a begginer in ATL, and I want to know if there exists any way to execute Java code in order to do some things to the generated Object.

I want to do that, because I have already implemented a complex initialization in Java of that kind of objects, and I don't want to duplicate this initialization...

If it's possible, please let me know how to do it Smile

Thanks!
Marc Gil

Re: [ATL] Use Java method in ATL [message #631094 is a reply to message #631093]

Wed, 06 October 2010 03:58

Eclipse User

EObject operations are available in ATL transformations. Just use

objet.operation()

in your ATL code

Re: [ATL] Use Java method in ATL [message #631097 is a reply to message #631094]

Wed, 06 October 2010 04:03

Eclipse User

Thanks Sylvain,

But this is an operation of the Metamodel. It's possible to execute a method placed into a static Class? Indicating the whole Namespace, name of the Class and name of the Method?

And other question: if finally I choose to call a Metamodel Operation, have I access to the atributes values that I have initialized in ATL before calling this operation?

Thanks a lot!
Marc

Re: [ATL] Use Java method in ATL [message #631107 is a reply to message #631097]

Wed, 06 October 2010 04:38

Eclipse User

Quote:

But this is an operation of the Metamodel. It's possible to execute a method placed into a static Class? Indicating the whole Namespace, name of the Class and name of the Method?

I don't think so. You could still code your own EMFModelAdapter to be able to do that.

Quote:

And other question: if finally I choose to call a Metamodel Operation, have I access to the atributes values that I have initialized in ATL before calling this operation?

This should work.

Re: [ATL] Use Java method in ATL [message #631113 is a reply to message #631107]

Wed, 06 October 2010 04:59

Eclipse User

I don't really know how to do what you're saying... You mean to modify the XXXAdapterFactory generated in the model code? In order to do what? Or how can I code my own EMFModelAdapter and tell ATL that uses it?

Re: [ATL] Use Java method in ATL [message #631127 is a reply to message #631093]

Wed, 06 October 2010 05:45

Eclipse User

ATL uses an EMFModelAdapter.
It is used to register the operations available in the ATL transformations such as refImmediateComposite(), oclIsTypeOf() and so on.
You can extend that EMFModelAdapter to add your own operations.

You can then code your own launcher to use your EMFModelAdapter.

Finally you can register the launcher by using the extension point : org.eclipse.m2m.atl.core.launcher

Re: [ATL] Use Java method in ATL [message #631147 is a reply to message #631127]

Wed, 06 October 2010 07:00

Eclipse User

Thanks a lot Sylvain!!

Finally I used the operations in the Metamodel. I found this solution better than the other one.

Nevertheless, the other solution is great for other things in the future...

One last question: in this way, I plan use this second solution (modify the EMFModelAdapter) in order to, for example, update a progress monitor, to show user that "something" is being done, cause we have some transformations that can take a lot of minutes. There exists any other way to 'update a progress monitor' in ATL code? Or this one is good?

Re: [ATL] Use Java method in ATL [message #634026 is a reply to message #631093]

Wed, 20 October 2010 06:14

Eclipse User

http://www.slideshare.net/wpiers/modelt-to-model-transformat ion-withatl
The above link is usefull i think

Re: [ATL] Use Java method in ATL [message #634027 is a reply to message #634026]

Wed, 20 October 2010 06:24

Eclipse User

Hi markberg,

At this moment, in fact I'm modifying my Metamodel in order to include operations to do what I want. This solution is useful for me, because the Metamodel is mine, but if not (like uml, for instance) I must to use my own EMFModelAdapter.

Thanks Smile

Marc

Re: [ATL] Use Java method in ATL [message #634722 is a reply to message #634027]

Fri, 22 October 2010 16:30

Eclipse User

Hi,

you may also use a more "lightweight" solution, without the need to implement a new model adapter.

You can use the "org.eclipse.m2m.atl.engine.emfvm.libextension" extension point and register your operations.

Check the ASMString class (in the engine) and the corresponding packages for an example (there is no doc for this, or at least I didn't find).

Regards,

Marcos Didonet.

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