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Hi Andreas,
On 07/18/2012 03:21 PM, wp1101223-androbit wrote:
Hi Henshin Devs,
first of all: Henshin is great :) . Currently I am trying to
use it to transform BPMN models to a graph exchange format.
Thanks.
I have managed the basic parts and now I am little bit stuck on
checking the multiplicity of edges. Is it possible to have an
contraint on the number of matching edges / nodes (see attached
image)?
I am not 100% sure whether this is what you want to do, but if you
want to make sure that there exists only one SequenceFlow object
with a reference to the ExclusiveGate node, you can change the
SequenceFlow action to <<preserve>> (for the reference
as well), and then add a second SequenceFlow node and reference with
the action <<forbid>>.
You can find a similar example here:
http://wiki.eclipse.org/Henshin_Trace_Model
-- the difference is though that in this case Trace objects are
created only if they do not exist yet. In your case you want to
forbid the application if there is at least one such object already.
I hope this helps. Let us know if this is not what you are trying to
achieve.
Cheers,
Christian
Best Regards,
Andreas
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