Michael Gilbode

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WebLogic Server provides mechanisms to expose standard J2EE components and Java classes as Web services. It typically processes an RPC-style Web service by determining the operation to invoke from the SOAP message, deserializing the operation's parameters in the SOAP message to Java, and then invoking the back-end component. Sometimes, however, this behavior is not sufficient and a Web service needs access to the SOAP message. SOAP message handlers can intercept SOAP messages in both the request and response to do additional processing of the SOAP message. SOAP message handlers are defined by the Java API for XML-based RPC (JAX-RPC). Handlers enable programmatic access to the SOAP message and are often used to process SOAP message headers. SOAP message headers may contain information about such things as transactions, security, and routing. Processing specific to t... (more)