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How to use Xtend create extensions with JavaBeansMetaModel [message #659625]

Mon, 14 March 2011 20:27

Olaf Bigalk

Messages: 155
Registered: July 2009
Location: Berlin

Senior Member

Hi.

I am using an Xtext project with the generated generator and ui projects. I suppose that the default configuration of the Xtext project uses JavaBeansMetaModel. But this seems to not work with create extensions.

Can anybody tell me how to use EMFMetaModels with Xtext?
or
can anybody tell me how to use create extensions with the JavaBeansMetaModel?

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Re: How to use Xtend create extensions with JavaBeansMetaModel [message #659630 is a reply to message #659625]

Mon, 14 March 2011 20:55

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

what about

component = org.eclipse.xpand2.Generator {
		metaModel = org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel {}
		expand = "templates::Template::main FOREACH greetings"
		outlet = {
			path = targetDir
		}
		fileEncoding = fileEncoding
	}

you have to adapt namespaces too.

«IMPORT myDsl»

«EXTENSION templates::Extensions»

«DEFINE main FOR Greeting-»
«FILE name+".txt"-»
This is an example of a generated file.

The input element was "Hello «name»!"

All greetings in the same file:
«FOREACH ((Model)eContainer).sortedGreetings() AS g SEPARATOR ', '»«g.name»«ENDFOREACH»
«ENDFILE-»
«ENDDEFINE»

and configure it in your generator project Xtend/Xpand properties

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: How to use Xtend create extensions with JavaBeansMetaModel [message #659632 is a reply to message #659625]

Mon, 14 March 2011 20:57

Karsten Thoms

Messages: 762
Registered: July 2009
Location: Dortmund, Germany

Senior Member

Hi Olaf,

the JavaBeansMetaModel is not capable of instantiating EMF classes. But I have something in the pipeline that I for which I just added an enhancement bug and attached a solution. Use the org.eclipse.xtend.typesystem.emf.java.EMFJavaMetaModel from the attached plugin.

Kind regards,
~Karsten

Need professional support for Xtext, EMF, Eclipse IDE?
Go to: http://devhub.karakun.com
Twitter : @kthoms
Blog : www.karsten-thoms.de

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