A servlet obtains a reference to the session pool manager that was created and initialized by the WebLogic Server when it started. The pool manager is used to retrieve the session pool that was configured in the config.xml file. This session pool references the appropriate Jolt Server in a Tuxedo domain. A servlet uses the session pool to invoke a specific Tuxedo service.

Tuxedo services are described and exported (declared accessible) in the Oracle Tuxedo Service Metadata Repository. In the Metadata Repository, the service’s expected input and output parameter types are declared. A servlet must supply the expected input parameters; Oracle Jolt for Oracle WebLogic Server uses specialized ServletSessionPool objects that can accept their input directly from an HttpServletRequest object. The output is returned in a ServletResult object.