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Generated Element IDs (xmi:id)? [message #657387]

Wed, 02 March 2011 16:21

Conor Missing name

Messages: 159
Registered: July 2009

Senior Member

Hi All,

I was wondering if it was possible to shorten the generated xmi:id that is associated with GMF editor components. I have to process composed models multiple times and need to reduce their size to the absolute minimum. I have already stripped out everything I can from the composed models with a transform with the element ids the last thing to be addressed.

Is there anyway of setting the ids length to be in the region of 2 or 3 characters? (instead of the default of 23 or 24)

Thanks,

Gaff

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Re: Generated Element IDs (xmi:id)? [message #657410 is a reply to message #657387]

Wed, 02 March 2011 16:52

Ed Merks

Messages: 33142
Registered: July 2009

Senior Member

Gaff,

IDs need to be unique within a resource. GMF makes heavy use of UUIDs
for that purpose; they're guaranteed to be universally unique.
Certainly it's possible (via XMLResource.setID) for you to assign
different values.

Conor wrote:
> Hi All,
>
> I was wondering if it was possible to shorten the generated xmi:id
> that is associated with GMF editor components. I have to process
> composed models multiple times and need to reduce their size to the
> absolute minimum. I have already stripped out everything I can from
> the composed models with a transform with the element ids the last
> thing to be addressed.
>
> Is there anyway of setting the ids length to be in the region of 2 or
> 3 characters? (instead of the default of 23 or 24)
>
> Thanks,
>
> Gaff

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Generated Element IDs (xmi:id)? [message #723437 is a reply to message #657410]

Thu, 08 September 2011 14:45

chavi

Messages: 67
Registered: April 2011

Member

Can you please tell me that how to fetch XMI Id.
I have written following code

import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.xmi.XMLResource;

public class myxmi{

public static String xmiId(EObject x) {
Resource resouce = x.eResource();
if (resouce instanceof XMLResource) {
XMLResource xmlResource = (XMLResource)resouce;
return xmlResource.getID(x);
}
return "";
}

}

But when i call this method as myxmi.xmiId(eobject).How can i fetch this object when i click on a particular component.

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