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Generate text on Annotation [message #1843921]

Tue, 24 August 2021 14:00

Pascal PONSARD

Messages: 3
Registered: August 2021

Junior Member

Hi,

i want to generate text on a Eclass witch contains attributes, some attributes have Annotation.
Acceleo 2 template was that :

<%script type="ecore.EClass" name="scTrier"%>
<%if (eAttributes[eAnnotations[source=="fce"].details[key=="trier"]]){%>
<%for (eAttributes[eAnnotations[source=="fce"].details[key=="trier"]].sep(",")){%><%name%><%}%>
<%}%>

This template "scTrier" Acceleo 2 returns
att1,att2
where att1 have a Annotation 'fce 'with a key 'trier'.
and nothing if any attribute of a Eclass contains this Annotation and this key.

How can i do the same thing on acceleo 3 ?

Thanks

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Re: Generate text on Annotation [message #1843942 is a reply to message #1843921]

Wed, 25 August 2021 09:01

Ed Willink

Messages: 7635
Registered: July 2009

Senior Member

Hi

This forum is not a free coding service.

Once you have studied https://wiki.eclipse.org/Acceleo/Migration_From_Acceleo_2 feel free to post your best endeavor and n outline of what problems you face. Then we can help you.

Regards

Ed Willink

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Re: Generate text on Annotation [message #1844074 is a reply to message #1843942]

Tue, 31 August 2021 08:58

Laurent Goubet

Messages: 1901
Registered: July 2009

Senior Member

Hello Pascal,

As Ed mentionned, the wiki lists a few of the rules to keep in mind when migrating an Acceleo 2 project towards Acceleo 3.

In this case though, the acceleo 2 constructs for filtering are not intuitive and have to be translated to a proper filtering, I suggest using a query for that. Something like the following should give you the result you're expecting:

[template public scTrier(class : EClass)]
[for (attribute : EAttribute | class.eAttributes->select(att : EAttribute | att.hasAnnotation())) separator (',')][name/][/for]
[/template]

[query public hasAnnotation(att : EAttribute) : EBoolean =
att.eAnnotations->select(ann : EAnnotation | ann.source = 'fce' and ann.details->select(entry : EStringToStringMapEntry | entry.key = 'trier')->size() > 0)->size() > 0
/]
[/query]

Regards,

Laurent Goubet
Obeo

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