Messages with No Parts
The simplest message contains no parts. This can be achieved using a WSDL message defined with no part elements as children:
<message name="VoidRequest">
This style of messaging is useful to execute a web service as a function with no data, like a void method in C++. It can also be used in a response, as a notification of completion. Otherwise, its use is fairly limited compared to the other styles, as it conveys no runtime data.
The generated client and server implementation will look just like functions for messages with parts (see below) except the arguments for the message parameters will be absent:
MyPortTypeImp::func(rwsf::CallInfo& callInfo)