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Xtend2 working with org.eclipse.xtend.XtendComponent [message #759574]

Tue, 29 November 2011 08:55

Martin

Messages: 3
Registered: November 2011

Junior Member

Hi all,

I tried using the new Xtend2 functionality with the Modeling Workflow Engine, in particular the org.eclipse.xtend.XtendComponent.

Below is a snippet from my workflow code.

var emitter = "de::fzi::mam::dsl::Emitter::generateDomainObjects(MobileApp)"

Workflow {
  (...)
  component = org.eclipse.xtend.XtendComponent {
    metaModel = org.eclipse.xtend.typesystem.emf.EmfMetaModel {
      metaModelFile = "..."		
    }
    invoke = "${emitter}"
       	
    outputSlot = "..."
  }
}

Now, I get a miraculous RuntimeException when using the invoke method of the XtendComponent:

Caused by: java.lang.RuntimeException: 
[ERROR]: Property 'invoke' not specified properly. AbstractExtension file 'de::fzi::mam::dsl::Emitter' not found.(Element: -UNKNOWN-; Reported by: -UNKNOWN-)

The funny thing is: when I rename my .xtend file to some .ext file, I get further to a

68   [main] ERROR    org.eclipse.xtend.XtendComponent  - Error in Component  of type org.eclipse.xtend.XtendComponent: 
	EvaluationException : Couldn't find type or property 'MobileApp'
	nofile[22,9] on line 1 'MobileApp'

No my question is: does the org.eclipse.xtend.XtendComponent work with .xtend files at all?

Best,
-Martin

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Re: Xtend2 working with org.eclipse.xtend.XtendComponent [message #759576 is a reply to message #759574]

Tue, 29 November 2011 08:58

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

there is a general misunderstanding,
Xtend2 has nothing to do with Xtend(1) => you cannot use XtendComponent.

you have to write a own workflow component / let your xtend class implement IWorkflowComponent

~Christian

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

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