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[ATL] Can I apply helpers just on classes used as main class? [message #547686]

Mon, 19 July 2010 07:10

Eclipse User

Hello

I created a helper which has his context related to class ControlFlow.

 helper context EPK!ControlFlow def: isConditionExpression()

Now I wanted to assign this helper to the rule:

-- Rule 9c / 11b
rule Event {
from
	e : EPK!Event (not e.isConditionExpression())
to 
...

Is this not working (context of helper: ControlFlow / from in rule EPK!Event)? How can I then check this?

thanks for your help. Cheers Roger

Re: [ATL] Can I apply helpers just on classes used as main class? [message #547692 is a reply to message #547686]

Mon, 19 July 2010 07:23

Eclipse User

Le 19/07/2010 13:10, Roger80 a écrit :
> Hello
> I created a helper which has his context related to class ControlFlow.
> helper context EPK!ControlFlow def: isConditionExpression()
> Now I wanted to assign this helper to the rule:
>
>
> -- Rule 9c / 11b
> rule Event {
> from
> e : EPK!Event (not e.isConditionExpression())
> to ..
>
>
> Is this not working (context of helper: ControlFlow / from in rule
> EPK!Event)? How can I then check this?
>
> thanks for your help. Cheers Roger

ATL and EMF respect inheritance principles so if you want to apply your
rule to multiple types which inherit from a main class, you have to put
the main type as context of this rule !!!
--
Cordialement

Vincent MAHÉ

Ingénieur Expert - Projet IDM++ - Équipe AtlanMod
École des Mines de Nantes
La Chantrerie - 4, rue Alfred Kastler
B.P. 20722 - F-44307 NANTES Cedex 3
Tel: (33)2 51 85 81 00

Re: [ATL] Can I apply helpers just on classes used as main class? [message #547706 is a reply to message #547686]

Mon, 19 July 2010 08:12

Eclipse User

Ok, but then my helper is not working anymore...i need this helper for both rules, once for the Event rule and once for the Control flow rule...do I have to make then two rules?

Re: [ATL] Can I apply helpers just on classes used as main class? [message #547708 is a reply to message #547686]

Mon, 19 July 2010 08:15

Eclipse User

Use an OclAny context if there is no common EClass in the inheritance trees of the two classes.

Re: [ATL] Can I apply helpers just on classes used as main class? [message #547768 is a reply to message #547686]

Mon, 19 July 2010 11:00

Eclipse User

Thanks, through your answer I was able to solve it.

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