This section tells you about using WebSphere eXtreme Scale (eXtreme Scale), to introduce server caching into your WebSphere Enterprise Service Bus (WebSphere ESB) environment.
By using a cache solution you can improve the response time of a back-end service. The addition of a cache solution with eXtreme Scale can reduce the cost, the response time of the service, or both, by checking the ObjectGrid for data before checking the back-end service.
Mediation flows can be used to access the eXteme Scale caching function.
When you develop a Service Component Architecture (SCA) module that needs to store information in an eXtreme Scale cache, you must include the WebSphere eXtreme Scale Store mediation primitive in the mediation flow. If you want to retrieve information from an eXtreme Scale cache, you must include the WebSphere eXtreme Scale Retrieve mediation primitive. By combining the two mediation primitives in a mediation flow you can cache the response from a back-end system, so that future requests can retrieve the response from the cache and do not require access to the back-end system.
To configure access to eXtreme Scale, you must create an eXtreme Scale definition using the administrative console or administration commands from the wsadmin scripting client. An eXtreme Scale definition is the mechanism used by the WebSphere eXtreme Scale Retrieve and Store mediation primitives to connect to an eXtreme Scale server.