WSDL generated client: change Transport method

[Wolfram Ditzer]

Hello,

I use classes created by WSDL2Java an d wsdl file.  My aim is to build a 
client for a web service.

 String serviceName = ...
 Url myAppUrl = ...
 Service service = new Service();
 MyAppServerStub myAppServer = new MyAppServerStub(myAppUrl, service);
 myAppServer.setPortName(serviceName);
 DataType1 dat1 ...
 DataType2 dat2 ...
 DataType3 dat3 ...
 dat3 = myAppServer.requestFoo(dat1, dat2)
  
This seems to run. But I still have some questions:

1) How to change the Transport classes. I have to use a connection pool, 
when createing and removing TCP connections.
    
    I could change with

      Call call = ... ????
      call.addTransportPackage(..)
      call.addTransportForProtocoll(..)
  But how to get the Call object?

2) What could I do with a client wsdd-file? I didnīt understand this?

Thank you in advance Wolfram