A server-side web calls adapter must be implemented as a Java class org.webappos.adapters.webcalls.[adapter_name].WebCallsAdapter.
Depending on the supported calling conventions, the class has to implement one (or both) of the following interfaces:
IJsonWebCallsAdapter (org.webappos.webcaller.IJsonWebCallsAdapter)
IWebMemWebCallsAdapter (org.webappos.webcaller.IWebMemWebCallsAdapter)
The class also needs to provide the no-argument constructor.