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Extraction to multiple files [message #555105]

Wed, 25 August 2010 13:21

adrian

Messages: 93
Registered: August 2009

Member

Hi all,
My grammar is like that :
Programmes:
prs=Programme
Programme : ........

so each Programmes has one Programme.
I have as input a model ecore defined as :
Programmes :
----Programme1: ....
----Programme2:...
....................................
----ProgrammeN:.........

How I can change the extraction workflow to obtain form this model N files each file contains a 'Programme'?

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Re: Extraction to multiple files [message #555114 is a reply to message #555105]

Wed, 25 August 2010 13:37

Alexander Nittka

Messages: 1193
Registered: July 2009

Senior Member

Hi,

I don't quite understand the scenario. If each Programmes can only have
one program (as the grammar suggessts), how can the input model have
several.

Do you mean the generator project's workflow when you say "extraction"
workflow?

If you use MWE2 you can load elements of a particular type into the
model slot. If you choose Programme, you could have a main template
defined for Programme (creating a file) and in the workflow file you
simply invoke the template "...FOREACH modelslot".
(This is basically what the greetings example does).
Note also that for this to work (out of the box), Programme has to have
a name attribute, so that it gets a qualified name by default.

If this does not help, please describe more clearly what you try to achieve.

Alex

Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext@itemis.de

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Re: Extraction to multiple files [message #555120 is a reply to message #555105]

Wed, 25 August 2010 13:51

adrian

Messages: 93
Registered: August 2009

Member

Hi Alexander,
The point is that I have a model ecore which contains several programmes and I want to extract text from this model.THe input model is not conforme to the grammar so I think it must be divided into several ecore models each one contains a programme.
I want to set a mecanism that enables me to have as output of the extraction of the input model as many text files as the number of the programs in the input model.

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Re: Extraction to multiple files [message #555133 is a reply to message #555120]

Wed, 25 August 2010 14:24

Alexander Nittka

Messages: 1193
Registered: July 2009

Senior Member

Hi,

this sounds like a model to model transformation to me. From the
non-conform ecore-model to several models that each correspond to the
meta model defined by your grammar.

Alex

Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext@itemis.de

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