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Submodules: X-Resource URIs [message #1752536]

Tue, 24 January 2017 22:46

Andreas Graf

Messages: 211
Registered: July 2009

Senior Member

Dear all,

when using submodules, it seems that the URIs of references to elements in other resources seem to include the resource name:

<packagedElement xmi:type="uml:Usage" xmi:id="_H-r4EOKBEeadSdf3Zj6cDQ">
<client xmi:type="uml:Actor" href="UCX.uml#_Gcsg4OKBEeadSdf3Zj6cDQ"/>
<supplier xmi:type="uml:UseCase" href="UCX.uml#_GVdNQOJ9EeadSdf3Zj6cDQ"/>
</packagedElement>

Is the resource name before the fragment actually used for reference / proxy resolution? It would seem that this would introduce a lot of dependencies between the files: Renaming a resource that is being referred would imply changes in all the referring resources. Or is the file name only informational?

Regards,

Andreas

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Re: Submodules: X-Resource URIs [message #1752619 is a reply to message #1752536]

Wed, 25 January 2017 15:41

Christian Damus

Messages: 1270
Registered: July 2009
Location: Canada

Senior Member

Hi, Andreas,

That's the EMF standard for serialization of XMI cross-document references. The href attribute is the URI (with fragment) of the referenced object. The URI is relative to the referencing resource, so in this case it needs only the resource file name because the referenced file is in the same folder as the referencing file.

And, yes, this does imply a need to refactor referencing resources when an object moves from one resource to another. IIRC, Papyrus implements refactorings, but I'm not sure of the details.

HTH,

Christian

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