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[Xtext] Workflow invocation yields "Incompatible Classes" error [message #42138]

Tue, 28 April 2009 07:25

Eclipse User

Hi all,

I'm trying to call workflow B from workflow A and then to invoke the
XtendComponent like so:

<component class="org.eclipse.xtend.XtendComponent">
<metaModel
class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel "/>
<invoke value="${topFunctionCallExpression}" />
<outputSlot value="otherModel" />
</component>

It get the following error message when running workflow A:

SEVERE: [ERROR]: Incompatible Classes:
'org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel' is not a
subclass of the expected class
'org.eclipse.xtend.typesystem.MetaModel'.(Element: bean metaModel
class='org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel ' in
org/example/test/model2model.mwe:12; Reported by: -UNKNOWN-)

The error traces back to the VisitorAnalyzer class (visitComponentAST()
method). I get a bit confused by the error message.. is that correct?

Regards,
Johan

Re: [Xtext] Workflow invocation yields "Incompatible Classes" error [message #42371 is a reply to message #42138]

Wed, 29 April 2009 04:40

Eclipse User

Hi Johan,

are you running the workflow within OSGi?
Is it possible to provide a stripped down example?
If it contains information you don't want to share publicly, you can
send it to me directly.

Cheers,
Sven

Johan Wannheden schrieb:
> Hi all,
>
> I'm trying to call workflow B from workflow A and then to invoke the
> XtendComponent like so:
>
> <component class="org.eclipse.xtend.XtendComponent">
> <metaModel
> class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel "/>
> <invoke value="${topFunctionCallExpression}" />
> <outputSlot value="otherModel" />
> </component>
>
> It get the following error message when running workflow A:
>
> SEVERE: [ERROR]: Incompatible Classes:
> 'org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel' is not a
> subclass of the expected class
> 'org.eclipse.xtend.typesystem.MetaModel'.(Element: bean metaModel
> class='org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel ' in
> org/example/test/model2model.mwe:12; Reported by: -UNKNOWN-)
>
> The error traces back to the VisitorAnalyzer class (visitComponentAST()
> method). I get a bit confused by the error message.. is that correct?
>
> Regards,
> Johan

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