Runtime mapping of types?

Hi all,

I'm trying to build a Java application that does the following:

  - using WSIFUtils.readWSDL(), i read a WSDL file, yielding me an  
object of type javax.wsdl.Definition
  - within the definition, i identify the port and operation i want  
to invoke
  - i can then drill down further to get the input and output  
messages, as well as their parts
  - i also run the Definition object through  
org.apache.wsif.schema.Parser.getAllSchemaTypes() to get all the  
dependent complex types

so far, this is all working: i can output a comprehensive list of  
types defined in the WSDL, and i can identify the parts for both the  
input and output messages for a given operation.  at this point, what  
i'd like to do is run the WSDL through the WSDL2Java utility to get  
the Java code for the types to which i need to map my parameters for  
the selected operation, compile that code, and load it.

i haven't gotten that last dynamic compilation step working quite  
yet, but looking forward, i don't see how to obtain the name of the  
class i need, from each of the javax.wsdl.Message objects that i  
have.  it seems there used to be an interface called WSDL2JavaMapper,  
but in the wsif-2.0 distribution that i have downloaded and  
installed, this interface doesn't exist.  can someone clue me in as  
to what the "right way" to do this dynamic code generation/mapping  
step would be?

thanks!

-alan