For function returns a configured cache of the given type, provided the correct config map.

ParseKey will parse a string in the format /:map/:layer/:z/:x/:y into a Key struct.

Register is called by the init functions of the cache.

Registered returns the cache's that have been registered.

Interface defines a cache back end.

Wrapped Cache are for cache backend that wrap other cache backends Original will return the first cache backend to be wrapped.

InitFunc initialize a cache given a config map.