Eclipse Community Forums: TMF (Xtext) » Cross-references to external EMF models (revisited)

Help

Home

Home » Modeling » TMF (Xtext) » Cross-references to external EMF models (revisited)

Show: Today's Messages :: Show Polls :: Message Navigator

Cross-references to external EMF models (revisited) [message #550914]

Wed, 04 August 2010 11:49

Joern
Messages: 22
Registered: March 2010

Junior Member

I try to reference elements given in external EMF models as Andreas in http://www.eclipse.org/forums/index.php?t=msg&th=170756& amp;start=0&S=81127b7c17990f3eddb47e01037a6405.

Therefore I adapted the solution given in org.eclipse.xtext.ecore and org.eclipse.xtext.ui.ecore for "my" language (here: bpmn2 from the corresponding Eclipse project). Nevertheless if I „import" the (process) model in my DSL I cannot reference the elements (e.g. the auto completion does not show the elements given in the model). Referencing elements from plain Ecore models does work.

Debugging the DSL editor I found that the "resource" member in BpmnResourceDescription (cf. EcoreResourceDescription) does not contain elements and reports two errors: PackageNotFoundException and ClassNotFoundException for the imported (process) model and it's URI.

Do I have to register the metamodel somewhere within xText, e.g. in the MWE2 workflow (editing process models within the generated Ecore editor works)? Or something else?

Thank you in advance.

Report message to a moderator

Re: Cross-references to external EMF models (revisited) [message #551084 is a reply to message #550914]

Thu, 05 August 2010 03:26

Sven Efftinge
Messages: 1667
Registered: July 2009

Senior Member

You don't need to register the EPackage with Xtext. Xtext relies on
EMF's registry.

Make sure, the bundle containing the EPackage has a valid plugin.xml and
is activated successfully. (i.e. can you use the EPackage directly?)

Sven

Am 8/4/10 5:49 PM, schrieb Joern:
> I try to reference elements given in external EMF models as Andreas in
> http://www.eclipse.org/forums/index.php?t=msg&th=170756& amp;start=0&S=81127b7c17990f3eddb47e01037a6405
>
>
> Therefore I adapted the solution given in org.eclipse.xtext.ecore and
> org.eclipse.xtext.ui.ecore for "my" language (here: bpmn2 from the
> corresponding Eclipse project). Nevertheless if I „import" the (process)
> model in my DSL I cannot reference the elements (e.g. the auto
> completion does not show the elements given in the model). Referencing
> elements from plain Ecore models does work.
> Debugging the DSL editor I found that the "resource" member in
> BpmnResourceDescription (cf. EcoreResourceDescription) does not contain
> elements and reports two errors: PackageNotFoundException and
> ClassNotFoundException for the imported (process) model and it's URI.
>
> Do I have to register the metamodel somewhere within xText, e.g. in the
> MWE2 workflow (editing process models within the generated Ecore editor
> works)? Or something else?
>
> Thank you in advance.
>

--
--
Need professional support for Xtext or other Eclipse Modeling technologies?
Go to: http://xtext.itemis.com
Twitter : @svenefftinge
Blog : http://blog.efftinge.de

--
Need professional support for Xtext and EMF?
Go to: http://xtext.itemis.com
Twitter : @svenefftinge
Blog : blog.efftinge.de

Report message to a moderator

Re: Cross-references to external EMF models (revisited) [message #551699 is a reply to message #551084]

Mon, 09 August 2010 04:45

Joern
Messages: 22
Registered: March 2010

Junior Member

Thanks, that helped: BPMN2 does only export the XMI-related namespace, not the one for the XSD serialization in the plugin.xml. I will add a comment in the corresponding forum.

Cheers,

Joern

Report message to a moderator

Previous Topic:	[MWE2] Accessing the current workspace from a workflow component
Next Topic:	Combining two DSLs

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri May 24 03:01:02 EDT 2013