[xsde-users] base class for complextype classes?

[dv]

Hello,

XSD/e generates classes out of complextypes specified in the XML schema, 
just like in 
http://www.codesynthesis.com/projects/xsde/documentation/cxx/hybrid/guide/#2.1 
.
However, the generated class does not have a base class - in XSD, it 
does (xml_schema::type). This is bad, because I have been using 
xml_schema::type in some template specialization code:

     template < typename T >
     struct DataTraits
< T
         , typename boost::enable_if
< boost::is_base_of< typename ::xml_schema::type, T>
 >::type
 >
     {
         ....
     };

T would be one of the generated classes. This code does not work with 
code generated XSD/e code, since the classes have no common base.
Is there a way to specify a base class for all complex types? I looked 
into the polymorphism options, but I am not sure they give me what I want.

regards