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EMF disable to open old model versions [message #1140265]

Wed, 16 October 2013 08:35

Jaroslav Stružka

Messages: 5
Registered: April 2013

Junior Member

I got model written in emf file, ecore model is generated etc. Run my app create and save a new file. Then I change my model (add, remove, rename class, ... ) in emf and regenerate all. I run the app and i still can open the file created with old version of model. In emf file a changed the namespace uri of the package. Is there any way to validate, check or something how to not open the old file?

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Re: EMF disable to open old model versions [message #1140384 is a reply to message #1140265]

Wed, 16 October 2013 10:12

Ed Merks

Messages: 33137
Registered: July 2009

Senior Member

Jaroslav,

Comments below.

On 16/10/2013 10:35 AM, Jaroslav Stružka wrote:
> I got model written in emf file, ecore model is generated etc. Run my
> app create and save a new file. Then I change my model (add, remove,
> rename class, ... ) in emf and regenerate all. I run the app and i
> still can open the file created with old version of model.
But it fails horribly?
> In emf file a changed the namespace uri of the package.
So you changed the nsURI?
> Is there any way to validate, check or something how to not open the
> old file?
I'm not sure what exactly you want to prevent. If you register the
resource factory and editor by file extension, there's no preventing the
editor being opened. If you define support for content types (set a
content type identifier in the GenPackage) then you can have it set up
so it checks the nsURI and considers the content not to be your content
if it doesn't match your namespace.

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

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