ResourcePool - A connection caching and pooling class.

The ResourcePool is a generic connection caching and pooling management facility. It might be used in an Apache/mod_perl environment to support connection caching like Apache::DBI for non-DBI resources (e.g. Net::LDAP). It's also useful in a stand alone perl application to handle connection pools.

The key benefit of ResourcePool is the generic design which makes it easily extensible to new resource types.