The Cache modules are designed to assist a developer in persisting data for a
specified period of time. Often these modules are used in web applications to
store data locally to save repeated and redundant expensive calls to remote
machines or databases. People have also been known to use Cache::Cache for its
straightforward interface in sharing data between runs of an application or
invocations of a CGI-style script or simply as an easy to use abstraction of
the filesystem or shared memory.
The Cache::Cache interface is implemented by classes that support the get, set,
remove, size, purge, and clear instance methods and their corresponding static
methods for persisting data across method calls.