Gets an item from the cache. A pointer to the item is returned, if found. If the item exists in the cache, its update time is updated.
Note that, if the item already existed and you change the value pointed to by the returned pointer, the create time will not be updated.
key to lookup
pointer to item value, may be null if key not found
See Implementation
Gets an item from the cache. A pointer to the item is returned, if found. If the item exists in the cache, its update time is updated.
Note that, if the item already existed and you change the value pointed to by the returned pointer, the create time will not be updated.