Sams Teach Yourself J2EE™ in 21 Days, Second Edition

The JAX-RPC API

JAX-RPC defines a set of classes, interfaces, principles, and mechanisms for making SOAP-based RPC calls. The main parts are

• Type conversion between Java types and XML types— For simple types, such as strings and primitive types, very little work is required. More effort is required from either the tools or the developer when mapping more complex types between Java and XML.

• Mapping between SOAP operations defined in WSDL and Java remote method calls— Essentially, WSDL interfaces are represented in Java by Remote interfaces.

• The server environment and how calls are received and directed— The receiving Java class has access to particular information about the SOAP call provided through a service context. The lifecycle of a servlet-based ...