Calling custom DMI DSRequest from Servlet

[Sytematic]

Hello,

Using: (SC_SNAPSHOT-2012-02-27_v8.2p/PowerEdition Deployment 2012-02-27)

I have a normal Servlet, and from this servlet I want to do an 'add' DSRequest. The operationBinding of this request is shown below. It however, does not call the DMI-add method of the specified className. Instead, it executes as if there was no <serverObject> specified (this datasource is a mysql DS btw).

Is this supposed to work like this? If so, how can I make sure my DMI method is called?

<operationBinding operationType="add" requiresAuthentication="false" requiresRole="" operationId="Order_JsonWebserviceDataSourceImplDefaultAddOperation"> 
      <serverObject className="nl.sytematic.projects.MyProject.server.custom.dmi.Order_CustomDMI"/>  
</operationBinding>

I am calling it like so:

protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
   try {
	DSRequest req = new DSRequest("Order_", "add");
        //init it with some values, omitted
        //...
        // run the Add request
        req.setOperationId("Order_JsonWebserviceDataSourceImplDefaultAddOperation");
	req.setValues(values);
	DSResponse resp;

	try {
	    resp = req.execute();
	} catch (Exception e) {
	    //*snip*
	}
   }
   catch (ServiceException e) {
	//*snip*
    }
}

Should I somehow start an RPC Manager first? Help or hints are appreciated!

[Isomorphic]

No need for an RPCManager..

Have you checked whether this operationBinding is working normally when called through IDACall? Maybe it's just a problem like not putting <operationBinding> within <operationBindings>.

[Sytematic]

Darn, it was something like that indeed. Thanks!