17.1. Describing Web Services with WSDL
The Web Services Description Language is an XML language for producing documents that describe Web Services. It is not particularly easy to read; like many XML languages, it is primarily intended for processing electronically. We won't attempt to create WSDL by hand; instead, we'll look at some tools that can do this for us.
One tool is the xrpcc utility we already used for our JAX-RPC example. At the same time that we were creating server-side artifacts for the JAX-RPC server, a WSDL document was created for us. Figure 17.1 shows graphically the components that make up a WSDL document; in our description of the document format, we'll provide specific examples from the xrpcc-generated WSDL document for ...
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