Helper classes that include calling and evaluating a WSDL.

P.O. boxes or services in the OSCI 2 context are always described with WSDLs. The communication-flow is as follows:

- Calling of the endpoint's WSDL,
- Evaluating information from the WSDL,
- Selecting the service that is to be requested (TypeOfBusinessSzenario, port, and service from the WSDL),
- Configuring and sending the message.

The EndpointLocator class supports calling, evaluating, and selecting the WSDL and its properties. Only an URL is needed for a WSDL. The class simply provides methods to set a TypeOfBusinessSzenario or a port that will be used for OSCI 2 communication.