Abhinasha Karana

A common approach to caching data in Web applications is to use an HTTP session. A business use case that spans multiple HTTP requests may create the need for caching in a Web tier. Once business use–case processing is completed, this cached data needs to be removed. Failure to do this may lead to memory leakage, which becomes noticeable when a user HTTP session continues for hours. The Solution The following terminology is used in subsequent sections: A use case is a sequence of steps performed by a user toward realization of a business requirement. A nested use case is the extension point from the base use case. The use case context represents the logical starting point of a use case. The handler is a server-side component responsible for processing HTTP requests. The cache element is an object, cached during use case processing. The navigation path is the sequen... (more)