Caching and web applications

Sooner or later, most web applications face the
problem of caching objects. There are basically two options. The first, and trickier,
is to build the cache yourself. The second is to use an existing caching framework. If you want to
take the first route, start with the Object Caching Service for Java specification.
If you’re looking for a framework you can deploy, start with Srini Penchikala’s
Object Caching in a Web Portal Application Using JCS.