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ocl constraint for allowing links only for elements in same container [message #152183]

Wed, 26 September 2007 05:13

Eclipse User

Originally posted by: michael.dev.NOSPAM.gmx.de

Hello All,

is it possible to use a ocl constraint in .gmfmap to allow connections
only for elements that share the same container and not if the elements
to be connected are in different containers? Means if element A and B
are in container C let em connect. If element A is in container C1 and B
is in C2 then do not allow a connection. Can anyone please tell me how
this constraint has to look like?

Michael

Re: ocl constraint for allowing links only for elements in same container [message #152379 is a reply to message #152183]

Thu, 27 September 2007 10:21

Eclipse User

Hi Michael,

I would create a "Target End Constraint" (under your Link Mapping)
in OCL like this:
self.parentContainer = oppositeEnd.parentContainer
This requires that your elements A and B have a reference to C.

Hope that helps!
Nicolai

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