Justin Knowlden

A proxy cache is a behavioral technique that provides the ability to cache a result-set (output) from a service call via a proxy using the argument-set (input) as the cache key. Through this proxy, all calls to any concrete instances of a defined type, service, are made. In this proxy, input is used as the key to obtain from or provide to a cache the output from a called service. If output has already been cached for a given input, the proxy returns the cached output without forwarding the call to the actual service. This article presents a software design approach that will allow you to add a transparent caching layer to your applications. This approach will work for all types of applications (middle-tier, client-side, batch, etc.) under many scenarios (Web services, database access, etc.). Although this article does refer to caching, it's not about caching. Instead,... (more)