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ATL duplicate instances [message #1760659]

Sun, 30 April 2017 18:07

joe fridik

Messages: 15
Registered: April 2017

Junior Member

Hello ,

I am trying to test a transformation that works, with a single rule that works but with duplicates.
Inpout model I have two instances (2 tasks) but as a result it gives me 4 instances (4tasks).

How I can group many elements into one

Here is a file that will give you more information about my model

Any help would be very useful to me

rule taskss{

from e:MM!task , t: MM!A
to
r:MM1!task( id <- e.name, text <-t.text1)

}

Attachment: rule rrr.docx
(Size: 68.15KB, Downloaded 161 times)

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Re: ATL duplicate instances [message #1760662 is a reply to message #1760659]

Sun, 30 April 2017 20:42

joe fridik

Messages: 15
Registered: April 2017

Junior Member

In other words a task contains a description, the latter contains an Action element that inherits three elements A, B and C.

How from a Task element access to an attribute of an element A
When I try this syntax does not give me anything :

Task.Description.Action.A.text1

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Re: ATL duplicate instances [message #1760679 is a reply to message #1760662]

Mon, 01 May 2017 15:45

Dennis Wagelaar

Messages: 589
Registered: September 2012
Location: Belgium

Senior Member

Your rule matches the Cartesian product (i.e. all combinations of) 'e' and 't', without any guard on the relationship between 'e' and 't'. If you just mean to trigger the rule for all 'e', you should specify 't' in the "using" section of the rule instead:

rule taskss{
  from e:MM!task (
    not e.description.oclIsUndefined() and
    e.description.action.oclIsKindOf(MM!A))
  using {
    t: MM!A = e.description.action;
  }
  to r:MM1!task (
    id <- e.name,
    text <- t.text1)
}

Cheers,
Dennis

[Updated on: Mon, 01 May 2017 18:15]

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Re: ATL duplicate instances [message #1760681 is a reply to message #1760679]

Mon, 01 May 2017 17:09

im hello world

Messages: 44
Registered: February 2017

Member

Hi Dennis,
I had the same problem as Joe and i tried the solution proposed by you.
I had an error after closing ' }' related to the clause "using"
using { ........ }
"mismatched input '}' expecting SEMI"
I don't understand where does the problem come from.
Any help please?
Thanks

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