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Home » Modeling » TMF (Xtext) » How do Xtext dev manage to have custom impl for emf classes?
How do Xtext dev manage to have custom impl for emf classes? [message #1015833] Sun, 03 March 2013 08:11 Go to next message
Victor Mising name is currently offline Victor Mising name
Messages: 55
Registered: June 2010
Member
Hi,

I noticed some of the implementation for the JavaVMTypes emf classes are custom ones.

What's the trick for having such a custom impl that is used everywhere (in particular if I have generated classes by another grammar extending some fo the JavaVMTypes emf classes)?

Thanks for any tips :)

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015836 is a reply to message #1015833] Sun, 03 March 2013 09:31 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian Dietrich
Messages: 4419
Registered: July 2009
Senior Member
Hi Xtext comes with a workflow component called ecoregenerator that
enables the generation gap pattern for ecore.

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015845 is a reply to message #1015836] Sun, 03 March 2013 12:47 Go to previous messageGo to next message
Victor Mising name is currently offline Victor Mising name
Messages: 55
Registered: June 2010
Member
Hi, ok but I coudln't see it used for commons.types!

I saw that xbase was using it while refering to commons.types src folder, but that's all.

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015847 is a reply to message #1015845] Sun, 03 March 2013 13:13 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian Dietrich
Messages: 4419
Registered: July 2009
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http://git.eclipse.org/c/tmf/org.eclipse.xtext.git/tree/plugins/org.eclipse.xtext.common.types/src/org/eclipse/xtext/common/types/GenerateEMF.java

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015849 is a reply to message #1015847] Sun, 03 March 2013 13:26 Go to previous messageGo to next message
Victor Mising name is currently offline Victor Mising name
Messages: 55
Registered: June 2010
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Great, thanks Smile

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015850 is a reply to message #1015849] Sun, 03 March 2013 13:33 Go to previous messageGo to next message
Victor Mising name is currently offline Victor Mising name
Messages: 55
Registered: June 2010
Member
It works, and if I want my language, which relies on the EMF meta-model previously generated using this component, to also exploits the custom implementation (in a case of a grammar rule that returns a class with a custom impl), can I do it without having to manage the ecore model by hand instead of generating it with xtext?

Because with the default EcoreGeneratorFragment, the custom impl are not taken into account...

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015851 is a reply to message #1015850] Sun, 03 March 2013 13:38 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian Dietrich
Messages: 4419
Registered: July 2009
Senior Member
hmmmm, i dont know if this is intended

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015981 is a reply to message #1015851] Mon, 04 March 2013 08:29 Go to previous messageGo to next message
Victor Mising name is currently offline Victor Mising name
Messages: 55
Registered: June 2010
Member
So, do you think I should report this as a bug maybe?

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Re: How do Xtext dev manage to have custom impl for emf classes? [message #1015989 is a reply to message #1015981] Mon, 04 March 2013 09:06 Go to previous message
Christian Dietrich is currently offline Christian Dietrich
Messages: 4419
Registered: July 2009
Senior Member
Feel free to do so

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