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[Acceleo] eContainer returns invalid class [message #664905]

Tue, 12 April 2011 13:20

Melanie Bats

Messages: 35
Registered: July 2009

Member

Hello,

I am writing a template with Acceleo 3.1.0M5 for generating a C file from an ecore model and I meet a weird behaviour. In my template, I just call the eContainer on my object like this :
[iConnectedData.eContainer()/]

If I run my template from eclipse as plugin I obtain :
RteLGenModel.impl.RteLGenReceiverPortImpl (shortName: ev_Mode_Change_Realized_rp, longName: null, category: ) (portInterface: ev_Mode_Change_Realized_interface) which is the expected result

but

If I run my template from a standalone java application, the result is :
org.eclipse.emf.ecore.impl.DynamicEObjectImpl (eClass: org.eclipse.emf.ecore.impl.EClassImpl (name: OclInvalid_Class) (instanceClassName: null) (abstract: false, interface: false))

Do you have an explanation? and a solution in order that the eContainer works in standalone mode?

Thanks,
Melanie

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Re: [Acceleo] eContainer returns invalid class [message #664970 is a reply to message #664905]

Tue, 12 April 2011 16:02

Ed Merks

Messages: 33007
Registered: July 2009

Senior Member

Melanie,

It sounds like in one case it finds the model (because its nsURI is
registered in the plugin.xml) but in the other case it doesn't, because
you have to register it manually. I.e., calling
XyxPackage.eINSTANCE.eClass() for every package you'll be using. It's
usually easier to run as a headless Eclipse application so that all the
normal registrations are just there...

Melanie Bats wrote:
> Hello,
>
> I am writing a template with Acceleo 3.1.0M5 for generating a C file
> from an ecore model and I meet a weird behaviour. In my template, I
> just call the eContainer on my object like this :
> [iConnectedData.eContainer()/]
>
> If I run my template from eclipse as plugin I obtain :
> RteLGenModel.impl.RteLGenReceiverPortImpl (shortName:
> ev_Mode_Change_Realized_rp, longName: null, category: )
> (portInterface: ev_Mode_Change_Realized_interface) which is the
> expected result
>
> but
> If I run my template from a standalone java application, the result is :
> org.eclipse.emf.ecore.impl.DynamicEObjectImpl (eClass:
> org.eclipse.emf.ecore.impl.EClassImpl (name: OclInvalid_Class)
> (instanceClassName: null) (abstract: false, interface: false))
>
> Do you have an explanation? and a solution in order that the
> eContainer works in standalone mode?
>
> Thanks,
> Melanie

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

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Re: [Acceleo] eContainer returns invalid class [message #664971 is a reply to message #664905]

Tue, 12 April 2011 16:05

Ed Willink

Messages: 7635
Registered: July 2009

Senior Member

Hi Melanie

>
> If I run my template from a standalone java application, the result is :
> org.eclipse.emf.ecore.impl.DynamicEObjectImpl (eClass:
> org.eclipse.emf.ecore.impl.EClassImpl (name: OclInvalid_Class)
> (instanceClassName: null) (abstract: false, interface: false))
which means 'invalid'
>
> Do you have an explanation? and a solution in order that the
> eContainer works in standalone mode?
There have been significant fixes to Standalone operation in M6 and M6a.
I recommend giving them a try.

Regards

Ed Willink

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Re: [Acceleo] eContainer returns invalid class [message #665060 is a reply to message #664905]

Wed, 13 April 2011 07:26

Stephane Begaudeau

Messages: 458
Registered: April 2010
Location: Nantes (France)

Senior Member

Hi Melanie,

If you are running in stand alone, you may have to register the metamodel by yourself (see the registerPackages method in the java launcher of your generator for an example). But I agree with Edward Willink, you should give a try to the 3.1M6 Smile