Eclipse Community Forums: Sirius » Issue of edges having same target when the target nodes have same name

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Issue of edges having same target when the target nodes have same name [message #1818214]

Tue, 10 December 2019 05:04

Eclipse User

Hi all,

I have created two containers as below:

Element1 with one bordered node with name AB .
Element2 with two bordered nodes with same name A1 and A1.

I can connect from Element1's bordered nodes to Element2's bordered nodes.

I connected from AB to first A1 and AB to second A1.

index.php/fa/36937/0/

It is connected properly. But when I close and open the eclipse , if the diagram is saved and opened, in diagram the two edges are connected to same A1.

index.php/fa/36938/0/

The target bordered nodes are two different objects with same name. But I am not getting why the edge target is same only when I close and open the eclipse.

Attachment: DifferentTarget.PNG
(Size: 5.54KB, Downloaded 420 times)
Attachment: SameTarget.PNG
(Size: 6.67KB, Downloaded 165 times)

[Updated on: Tue, 10 December 2019 05:05] by Moderator

Re: Issue of edges having same target when the target nodes have same name [message #1818216 is a reply to message #1818214]

Tue, 10 December 2019 06:03

Eclipse User

Hi,

One possible explanation is that the "two different objects with same name" actually have more than the same name, but also the same id, if in your metamodel the "name" attribute has id=true. In this case when the model is serialized by EMF both objects will have the exact same URI, so when it is reloaded back in memory EMF resolves both references to "the element with id A1" to the same instance and has no possibility to distinguish them.

If that is the case you should be able to confirm it by opening your semantic model with a non-Sirius editor (the default tree-based EMF editor for example) and inspect how the references were resolved.

Regards,
Pierre-Charles

Re: Issue of edges having same target when the target nodes have same name [message #1818261 is a reply to message #1818216]

Wed, 11 December 2019 01:58

Eclipse User

Thank you Pierre for the reply. The "name" attribute has id=false.

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