Just some thoughts off the top of my head:
      
      
        - Why not add the connection when you create the instances of
          A and B?
- Alternatively, you could probably add a NAC to your
          connection-creating rule to make sure the connection doesn't
          already exist.
Best regards,
      Steffen
      
      
      On 23/05/2017 11:24, Juergen Freund
        wrote:
      
      
        
        Dear Henshin Users and Developers,
        
        
        I have problem with rules which I am not able to solve.
        
        I want to create 50 instances of a class A and 50 instances of a
        class B.
        
        After that is done I want to connect all of them in a separate
        rule. And I only want them to connect only once. 
        Which means in the end there should be 50 edges more in the
        graph.
        
        So what I have done:
        
        
          - Rule to create class A and class B
- Iterated Unit which calls the rule above 50 times.
Now is the part I don't know haw to do it right.
        
          - Rule which creates an edge between a preserved A and a
            preserved B --> only one single connection is added
- Amalgamation Rule which creates an edge between a
            preserved* A and a preserved* B --> each a has 50
            connections to each B
I added the project with my examples. It would be nice if you
          could me out.
        
        
        Kind regards,
        Jürgen
        
        
        -- 
Dipl.-Ing. Jürgen Freund
Arbeitsgruppe Ähnlichkeitsmechanik
Telefon: +49 (0)711 685 69530
E-Mail:  freund@xxxxxxxxxxxxxxxxxxxx
Postadresse:
Universität Stuttgart
Institut für Statik und Dynamik der Luft- und Raumfahrtkonstruktionen
Pfaffenwaldring 27 - Zimmer 01.002
70569 Stuttgart
        
        
        
        _______________________________________________
henshin-user mailing list
henshin-user@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://emea01.safelinks.protection.outlook.com/?url="">
      
      
      -- 
Dr. rer. nat. Steffen Zschaler AHEA
Senior Lecturer
King's College London
Department of Informatics
Email szschaler@xxxxxxx
Phone +44 (020) 7848 1513
WWW   http://www.steffen-zschaler.de/
      
      
      
      _______________________________________________
henshin-user mailing list
henshin-user@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://dev.eclipse.org/mailman/listinfo/henshin-user