Eclipse Community Forums: ATL » lazy rules with returning sequence

Help

Home

Home » Modeling » ATL » lazy rules with returning sequence

Show: Today's Messages :: Show Polls :: Message Navigator

lazy rules with returning sequence [message #897434]

Tue, 24 July 2012 06:58

Martin Benedict

Messages: 22
Registered: June 2012

Junior Member

I have written a lazy rule transforming a model element from source model to two model elements of the target models.
The problem now is that a lazy rule only returns the first element of the to block. Now I have two elements to be returned. The first is a class and the second is an association. Both elements result from one model element.
How can I reach that both elements are returned by the lazy rule?

Here is a code sample:

from
    ep: M!AnElement
to
   epSeq : Sequence{c2, as }, -- I want to do something like this, but this is not working

--these elements should be bundled for return
		c2: UML!Class (
			name <- ep.name.firstToLower()
		),
		as: UML!Association (
			ownedEnd <- Set{p1},
			navigableOwnedEnd <- Set{p2} -- directed association
			
		),
--.......

Thanks for any help
Martin

Report message to a moderator

Re: lazy rules with returning sequence [message #897443 is a reply to message #897434]

Tue, 24 July 2012 07:43

Sylvain EVEILLARD

Messages: 556
Registered: July 2009

Senior Member

Using a called rule instead of a lazy rule as you can stipulate the elements to return in the do section.

rule XXX(ep: M!AnElement){
to
		c2: UML!Class (
			name <- ep.name.firstToLower()
		),
		as: UML!Association (
			ownedEnd <- Set{p1},
			navigableOwnedEnd <- Set{p2} -- directed association
			
		)
do{
Sequence{c2, as };
}
}

Report message to a moderator