- getStatByName
get the desired statistic counter
- init
initialize the cache
- _put
cache the given value at the specified key and return previous value
- _remove
remove the item stored at the key.
- _removeItem
remove the item stored at the key.
- clear
clear all the entries from the cache.
- createItem
create new item
- decrementEntryCount
- eq
Check for equality of non-null reference x and possibly-null y.
- get
get the item stored at the key.
- getIndex
get the index of the item given a key
- getStats
get the stats snapshot