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Check if an object has been already created [message #1273899]

Thu, 20 March 2014 18:05

Simone Di Cola

Messages: 60
Registered: February 2014

Member

Hi all,
how can I check if an EClass has been already created? Is there anyway to enforce the rules I've created in the ecore model?

Thanks
Simone

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Re: Check if an object has been already created [message #1274038 is a reply to message #1273899]

Thu, 20 March 2014 23:06

Robert Brodt

Messages: 811
Registered: August 2010
Location: Colorado Springs, CO

Senior Member

Is it possible to override your model factory's create(EClass) method? That's what comes to mind as a possible hook for tracking object creations...

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Re: Check if an object has been already created [message #1274288 is a reply to message #1274038]

Fri, 21 March 2014 08:35

Simone Di Cola

Messages: 60
Registered: February 2014

Member

Yes I do, but I was just wondering if there was a simpler and more elegant solution. Nevertheless, EMF provides validation for my model, so it would be nice to invoke the validator and ask if an action is possible or not.

Any idea if my scenario is achievable?

Thanks
Simone

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Re: Check if an object has been already created [message #1276247 is a reply to message #1274288]

Mon, 24 March 2014 09:43

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

Simone,

one idea might be to register a project builder, that calls your validator.
By doing that validation will be triggered each time you save.

Michael

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Re: Check if an object has been already created [message #1276283 is a reply to message #1276247]

Mon, 24 March 2014 10:38

Simone Di Cola

Messages: 60
Registered: February 2014

Member

Thanks Micheal,
could please tell me a little bit more about your approach? I have no clue how to do it.

Simone

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Re: Check if an object has been already created [message #1279075 is a reply to message #1276283]

Fri, 28 March 2014 07:49

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

Simone,

there's lots of information on this available in the web, just google for
"eclipse builder tutorial" and you'll find tutorials, docus and FAQs about
creating a builder.

Inside that builder you would then trigger the validation of your objects
and create markers for issues.

Michael

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