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[ETL] Specify metamodels in transformation for content assist/validation [message #778593]

Fri, 13 January 2012 13:00

Jens von Pilgrim

Messages: 313
Registered: July 2009

Senior Member

Hi,

is it possible to somehow specify the metamodels in an ETL
transformation, e.g., for enabling content assist? Does the ETL editor
support content assist (of metamodel related information)? That is, show
attributes of a model element?

Does the editor validates the transformation, anyway? Do I have to add a
nature to the project for that (and if, how)?

Cheers,
Jens

P.S. I've installed Epsilon Core and HUTN 0.9.1. (Note: Core depends on
HUTN, which apparently isn't configured in the p2 metadata, is it?).

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Re: [ETL] Specify metamodels in transformation for content assist/validation [message #778614 is a reply to message #778593]

Fri, 13 January 2012 14:13

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Jens,

ETL is a dynamically-typed language and as such the editor does not support metamodel-driven code completion or validation.

Regarding the Core->HUTN dependency, I'll need to check this and get back to you.

Cheers,
Dimitris

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Re: [ETL] Specify metamodels in transformation for content assist/validation [message #1064974 is a reply to message #778614]

Sat, 22 June 2013 09:32

Gaëtan Pruvost

Messages: 19
Registered: June 2013

Junior Member

Hi Dimitri ,

Sorry to dig up this topic but I share the same need as Jens regarding code completion.

I understand that ETL is dynamically-typed but that doesn't mean that the editor can't help us typing (if we give him enough info). In the ATL plugin I previously tried, you could set a few commented annotations in the header of the file.

Something like:
// @Model( model1 : my.model.uri/mm1.ecore )
// @Model( model2 : my.model.uri/mm2.ecore )
// @Model( model3 : my.model.uri/mm3.ecore )

No matter what was feeded to the script at runtime, this was just here to help the editor provide usefull tooltips/code completion. I think most people already write such kinds of comments at the top of their ETL scripts. Letting the editor understand them (without changing anything to the ETL language itself) would be a great user interface improvement.

Does it seem feasible to include such a feature?

Thanks and congrats for this great tool!

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Re: [ETL] Specify metamodels in transformation for content assist/validation [message #1065126 is a reply to message #1064974]

Mon, 24 June 2013 13:06

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Gaëtan,

Thanks for your feedback. We're currently working on adding support for static analysis to all languages in Epsilon so we should be able to support code completion in the, not too distant, future.

Cheers,
Dimitris

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