How to use

eContainer

method

in

org.eclipse.xsd.XSDSimpleTypeDefinition

 public boolean select(Object toTest)
 {
  if (toTest instanceof XSDFeature)
  {
   XSDTypeDefinition type = ((XSDFeature)toTest).getResolvedFeature().getType();
   if (type instanceof XSDSimpleTypeDefinition)
   {
    return true;
   }
  }
  else if (toTest instanceof XSDSimpleTypeDefinition)
  {
   XSDSimpleTypeDefinition st = (XSDSimpleTypeDefinition)toTest;
   if (st.eContainer() instanceof XSDSchema ||
     st.eContainer() instanceof XSDFeature)
   {
    return true;
   }
  }
  return false;
 }
}

if (!(std.eContainer() instanceof XSDComplexTypeDefinition) ||
  ((XSDComplexTypeDefinition) std.eContainer()).getDerivationMethod() != XSDDerivationMethod.EXTENSION_LITERAL)