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[ATL] Structuring a transformation in different files / libraries [message #93689]

Wed, 29 October 2008 10:32

Skander TURKI

Messages: 130
Registered: July 2009

Senior Member

Hi,
I'm building a transformation that has a big managed rule that calls a lot
of little lazy rules. So i want to separate the lazy rules in other ATL
files for better readability and to have a more automated development
process (i'm thinking of an automatic generation of these files/libraries
because of the repeated structure they have).

So the problem is :
- How to call a lazy rule that is defined in a different
file/Module/library?
- Is there another way to better structure the transformation?
- Is there a forthcoming release of ATL that deals with such issues?

Thanks for all!!

------------------------------------------------------------ ------
Dr. Skander TURKI
Post-Doc
Université de Bretagne Sud
Lab-STICC / CNRS UMR 3192
BP92116 / 56321 LORIENT Cedex
Tel:0624392697
------------------------------------------------------------ ------

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Re: [ATL] Structuring a transformation in different files / libraries [message #93762 is a reply to message #93689]

Wed, 29 October 2008 14:11

Freddy Allilaire

Messages: 130
Registered: July 2009

Senior Member

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Hi Skander,

I think it is not possible by default :-(. Maybe you could use ATL
superimposition (http://wiki.eclipse.org/ATL_Superimposition) to do
this, but this wasn't the intended goal of superimposition.

You can ask for an enhancement via M2M/ATL Bugzilla ;-)

Regards,
Freddy.

Skander a

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Re: [ATL] Structuring a transformation in different files / libraries [message #93794 is a reply to message #93689]

Wed, 29 October 2008 14:46

Alfons Laarman

Messages: 71
Registered: July 2009

Member

Hi,

The only things you can put in a library are queries (OCL helpers). Only
helpers on non-primitive types (model elements) and global queries are
accessible outside the library itself.
I advice you to compact the lazy rules by extracting OCL code to helpers and
put those in the library where appropriate.
The main purpose of a library is ofcourse to share code between different
transformations.

If you group your rules according to purpose or type (lazy / called / helper
/ normal rule) and place bookmarks in your code, will it make your code
better manageable?

A final idea would be to use super imposition to put the lazy rules in a
kind of library. But wsince this is not the purpose of super imposition it
may lead to undesirable effects.

Good luck, regards,

Alfons

"Skander " <skander.turki@gmail.com> schreef in bericht
news:1de05ef71acd2ab2c815964e316b9913$1@www.eclipse.org...
> Hi,
> I'm building a transformation that has a big managed rule that calls a lot
> of little lazy rules. So i want to separate the lazy rules in other ATL
> files for better readability and to have a more automated development
> process (i'm thinking of an automatic generation of these files/libraries
> because of the repeated structure they have).
> So the problem is : - How to call a lazy rule that is defined in a
> different file/Module/library?
> - Is there another way to better structure the transformation?
> - Is there a forthcoming release of ATL that deals with such issues?
>
> Thanks for all!!
>
> ------------------------------------------------------------ ------
> Dr. Skander TURKI
> Post-Doc
> Universit

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Re: [ATL] Structuring a transformation in different files / libraries [message #93809 is a reply to message #93762]

Wed, 29 October 2008 14:50

Alfons Laarman

Messages: 71
Registered: July 2009

Member

Hi Freddy,

You beat me :)
The good news is that "rule libraries" was planned (at least at one point in
time) for a future release of ATL:
http://sosym.dcs.kcl.ac.uk/events/mtip05/submissions/jouault _kurtev__transforming_models_with_atl.pdf
page 26

Cheers,

Alfons

"Freddy Allilaire" <freddy.allilaire@obeo.fr> schreef in bericht
news:ge9qu5$qqn$1@build.eclipse.org...
> Hi Skander,
>
> I think it is not possible by default :-(. Maybe you could use ATL
> superimposition (http://wiki.eclipse.org/ATL_Superimposition) to do
> this, but this wasn't the intended goal of superimposition.
>
> You can ask for an enhancement via M2M/ATL Bugzilla ;-)
>
> Regards,
> Freddy.
>
> Skander a

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