[jira] Commented: (TUSCANY-112) Generated SDO2 DataObject class throws ClassCastException when DataObject.getType() is called

["Frank Budinsky (JIRA)" <tu...@ws.apache.org>]

    [ http://issues.apache.org/jira/browse/TUSCANY-112?page=comments#action_12369898 ] 

Frank Budinsky commented on TUSCANY-112:
----------------------------------------

It sounds like this static initialization in class DataObjectUitl hasn't run in your environment:

  /**
   * Configure EMF to support the SDO runtime by registering a specialized Ecore factory, SDOEcoreFactory.
   *  This static initializion must run before any SDO metadata is created or loaded.
   *  As long as SDO helper classes (e.g., TypeHelper, XMLHelper, etc.) are accessed though their
   *  corresponding INSTANCE fields (e.g., TypeHelper.INSTANCE), or using the SDOUtil methods (e.g.,
   *  SDOUtil.createTypeHelper(), this will always be the case.
   */
  static
  {
    EPackage.Registry.INSTANCE.put(EcorePackage.eNS_URI, new EPackage.Descriptor()
      {
        public EPackage getEPackage()
        {
          return EcorePackage.eINSTANCE;
        }

        public EFactory getEFactory()
        {
          return new SDOFactoryImpl.SDOEcoreFactory();
        }
      });
  }

You can force it by calling DataObjectUtil.initRuntime() in your startup code.

Frank.


> Generated SDO2 DataObject class throws ClassCastException when DataObject.getType() is called
> ---------------------------------------------------------------------------------------------
>
>          Key: TUSCANY-112
>          URL: http://issues.apache.org/jira/browse/TUSCANY-112
>      Project: Tuscany
>         Type: Bug
>   Components: Java SDO Implementation
>     Reporter: Raymond Feng
>     Priority: Critical

>
> These 4 lines of code will fail:
> import org.apache.tuscany.model.scdl.Module;
> import org.apache.tuscany.model.scdl.ScdlFactory;
> Module module = ScdlFactory.INSTANCE.createModule();
> Type type = ((DataObject) module).getType();
> Exception in thread "main" java.lang.ClassCastException: org.eclipse.emf.ecore.impl.EClassImpl incompatible with commonj.sdo.Type
> 	at org.apache.tuscany.sdo.impl.DataObjectImpl.getType(DataObjectImpl.java:319)
> 	at org.apache.tuscany.axis2.stax.AxiomHelper.main(AxiomHelper.java:135)

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