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Cannot find class in reference model [message #1047563]

Tue, 23 April 2013 07:38

Gunnar Arndt
Messages: 46
Registered: June 2012

Member

Hi again,

I'm trying to create sub-model elements in my output model, which yields the error messages:

org.eclipse.m2m.atl.engine.emfvm.VMException: Cannot find class OpenScreen in reference model otx
org.eclipse.m2m.atl.engine.emfvm.VMException: Cannot find class hmi::OpenScreen in reference model otx
org.eclipse.m2m.atl.engine.emfvm.VMException: Cannot find class otx::hmi::OpenScreen in reference model otx
org.eclipse.m2m.atl.engine.emfvm.VMException: Cannot find class org::iso::otx::hmi::OpenScreen in reference model otx

depending on the rule notation used:

lazy rule Presenter2OpenScreen {
	from
		source: transformate!PresenterTacticTransformer
	to
                otxActionRealisation: otx!OpenScreen (
                --otxActionRealisation: otx!"hmi::OpenScreen" (
                --otxActionRealisation: otx!"otx::hmi::OpenScreen" (
		--otxActionRealisation: otx!"org::iso::otx::hmi::OpenScreen" (
			modal <- true
		)
}

I had posted that problem in another context before and have recently switched to loading otx.genmodel instead of otx.ecore in the transformation, because the genmodel definitely contains the sub-metamodels (HMI, namely), which originally is created from hmi.xsd imported by otx.xsd. You can verify that from the screenshots below.

OpenScreen's interface definition looks like this:

package org.iso.otx.hmi;
import org.iso.otx.ActionRealisation;
public interface OpenScreen extends ActionRealisation {
 //...
}

Two screenshots of the genmodel's properties to make the names of the metamodels clear:

The ATL documentation is not totally clear on how to specifiy sub-model elements.

Can you tell me how exactly to create sub-model elements in ATL? None of the above alternatives have worked for me. Thank you!

[Updated on: Tue, 23 April 2013 07:39]

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Re: Cannot find class in reference model [message #1048343 is a reply to message #1047563]

Wed, 24 April 2013 06:29

Gunnar Arndt
Messages: 46
Registered: June 2012

Member

SOLVED: I had accidently used an exclamation mark in a binding's name:

rule bla() {
 to
  otxIfConditionalFlow: otx!ConditionalFlow (
   condition <- otx!ConditionHeader -- Wouldn't this better be rejected by the compiler?
  ),
  otxConditionHeader: otx!ConditionHeader (
  )
 do {
  otxIfConditionalFlow;
 }
}

That prevented the instantiation of otx!ConditionHeader everywhere in the module.

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