The ServletSessionPool.call() method returns a ServletResult object that contains the results from the Tuxedo service. If the service call fails, an exception is thrown. You should always attempt to catch exceptions and handle them appropriately. Refer to “Appendix A, Oracle Jolt Exceptions” in Using Oracle Jolt for details about the possible exceptions that can occur.

The following example retrieves a ServletResult object using the ServletSessionPool.call() method in an HTTP servlet:

ServletResult sResult = ssPool.call("service_name", request);

where ssPool is a ServletSessionPool, and request is an HttpServletRequest.

The ServletSessionPool.call() method returns a Result object that you must cast as a ServletResult object. The ServletResult object provides extra methods for retrieving data as Java Strings.

Provided the call was successful, the individual parameters can be retrieved from the Result or ServletResult object using various forms of the getValue() method.

• Using the Result.getValue() Method
  
• Using the ServletResult.getStringValue() Method