In the current application I am working on, we are using a Flex client that communicates with a Web service on the server side. The client's VOs are automatically generated.

One of the things that bothered me in that model is – how can I implement polymorphysm in this model?

Let's assume that in the wsdl there is a complex type A.

Two types extend it (using xsd:extension) – B1 and B2.