A language agnostic interface for a caching strategy

cache_interface.code

protocol CacheKeyStore  
  prop storeName = 'my cache key store name'
  prop delimiter = '|'
  func <void> 
       set => <str> cacheKey,
              <str> json
  func <str|cacheKey> 
       makeKey => <str> __CLASS__, 
                  <str> __METHOD__, 
                  <str> handledInput
  func <str>
       exists => <bool>  
  func <str>
       fetch => <str> cacheKey  
  func <void>
       delete => <str> cacheKey  
  func <void>
       deleteAssoc => <str> cacheKeyPart