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Navigation between the elements of a MetaModel With ATL [message #1232830]

Fri, 17 January 2014 21:26

Amine Nafdou

Messages: 4
Registered: January 2014

Junior Member

Hello,
My problem is as follows:

i can't put the code or the image because the forum don't let me(You can only use links to eclipse.org sites while you have fewer than 5 messages.)

so i'll try to describe the every MetaModel.

I have a MetaModel A:
that defines a root element named A which is the parent of B which is the parent of C
,each element have an attribut name:EString

I have a MetaModel B:
that defines one element that have 2 attributs:
- name of element(which is the name of element C)
- bigParent(which is the big parent of that C which is the element A who is the parent of B who is the parent of that C).

[/code]
I'm trying to create an ATL file:

Who will do the following:

- Transform all elements of C MMa to elements of MMb

name of the element <- name of C
bigParent of element <- parent B is the parent of C (name of A)

-- @path MA=/Example/metamodels/MMA.ecore
-- @path MB=/Example/metamodels/MMB.ecore

module test;
create OUT : MB from IN : MA;

rule ABC2Element {
from c : MA!C
to element: MB!Element(
name <- c.name ,
bigParent <- <== ??!!! here is the question Smile

)
}

Thank you in advance.

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Re: Navigation between the elements of a MetaModel With ATL [message #1235446 is a reply to message #1232830]

Fri, 24 January 2014 11:43

Victor Pavon

Messages: 50
Registered: April 2012
Location: Spain

Member

Hello Amine,

You could use the function refInmediateComposite() that give you the parent of the C element in this case B. To obtain the A parent you could deffine a recursive helper like this:

helper context oclAny def : getBigParent() : mmA!A = 
  if self.refInmediateComposite().oclIsTypeOf(mmA!A) then
     self.refInmediateComposite()
  else
     self.refInmediateComposite().getBigParent()
  endif;

Best regards,
Víctor.

Víctor Pavón,
Research at Quercus Software Engineering Group
University of Extremadura, Spain.

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Re: Navigation between the elements of a MetaModel With ATL [message #1236710 is a reply to message #1235446]

Mon, 27 January 2014 22:46

Amine Nafdou

Messages: 4
Registered: January 2014

Junior Member

Hello Victor,

Thank you very much for your response, i will try it, and tell you the results Smile

, and if it's possible can i contact you ??

Thank you in advance Smile

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Re: Navigation between the elements of a MetaModel With ATL [message #1236718 is a reply to message #1236710]

Mon, 27 January 2014 23:20

Amine Nafdou

Messages: 4
Registered: January 2014

Junior Member

Hi there,

i tried your solution and that's what i got :

org.eclipse.m2m.atl.engine.emfvm.VMException: Operation not found: IN!C1:MA!C.refInmediateComposite()

Thank you in advance Smile

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