16.1. The Basics of JAX-RPC
Beneath the surface, JAX-RPC clients and servers are exchanging SOAP messages, each of which contains XML representations of the parameters and return values of the methods being called. But as a JAX-RPC programmer, you only need to think in terms of Java objects; the fact that SOAP is being used underneath is completely transparent. In fact, JAX-RPC is designed to be fully compatible with other underlying transports. At the first release of JAX-RPC, SOAP 1.1 and HTTP are required, but future releases may allow different low-level implementations.
Because of this focus on objects, using JAX-RPC is very similar to using Java RMI; it feels much more familiar to a Java programmer than JAXM does. But some surprises are ...
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