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HighOrderTransformation: From Model to Text [message #991439]

Wed, 19 December 2012 02:41

Eclipse User

Hi,

I'm developing a transformation from the metamodel of my system (conforms to Ecore) to a modified metamodel (conforms to Ecore too). My MM has more than a hundred classes and I'll need transform models, conforms my source MM to the other one, conforms my target metamodel.

Anyway, I need perform an high order transformation, and... after I read some papers and examples, all these HOTs are developing with TCS (Textual Concret Syntax) to translate from model to text *.atl. The problem is than TCS is outdate and it does not run in newer Eclipse (e.g. Eclipse Juno).

Are there another way to do this? Are there any Xpand project (or similar) to translate from atl model to atl file?

Or I need necessary to do this in older Eclipse versions?

Thank you so much Smile

,
Antonio.

Re: HighOrderTransformation: From Model to Text [message #991530 is a reply to message #991439]

Wed, 19 December 2012 12:05

Eclipse User

Hello,

I guess there is a misunderstanding somewhere: HOTs are transformations, so they are also defined with ATL.
Thus, what is required is to be able to inject ATL files as ATL models and to extract ATL models as ATL files.

ATL already provides these base injector and extractor.
They can be called for instance using ATL ANT Tasks (cf. the atl.loadModel and atl.saveModel usage examples provided from that documentation).

I hope this helps.

Best regards,

Hugo

Re: HighOrderTransformation: From Model to Text [message #991805 is a reply to message #991530]

Thu, 20 December 2012 03:37

Eclipse User

Thank you so much. My problem was solved. Now I have a ANT Task to extract ATL code.

Another question regarding HOT but about other concern. Reading the paper:

Massimo Tisi, Jordi Cabot, Frédéric Jouault: Improving Higher-Order Transformations Support in ATL. ICMT 2010: 215-229

a new syntax for development HOT is proposed:

from
c : MyMM!EClass
using {
name : String = 'Flatten' + c.name;
metamodel : String = thisModule.inputMMHOT;
modelElemName : String = c.name;
}
to
r : HOT!MatchedRule |[
rule %name {
from
packageClass : %metamodel!%modelElemName
to
flattenClass : %metamodel!%modeleElemName
}
]|

Is there implemented in newer ATL versions? I'm using 3.3.1 atl plugin version (the latest I guess) and it does not recognize this syntax proposed.

Thank you so much and sorry for ask another question different to post title.
Antonio

Re: HighOrderTransformation: From Model to Text [message #991863 is a reply to message #991805]

Thu, 20 December 2012 06:24

Eclipse User

The syntax was supported by a research prototype that never made into the main ATL distribution.

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