T - The type of the option.public static interface Option.CacheKeyUpdater<T>
MessageDigest with the given value as part of a process to
 generate a disk cache key.| Modifier and Type | Method and Description | 
|---|---|
| void | update(byte[] keyBytes,
      T value,
      MessageDigest messageDigest)Updates the given  MessageDigestwith the bytes of the given key (to avoid incidental
 value collisions when values are not particularly unique) and value. | 
void update(byte[] keyBytes,
            T value,
            MessageDigest messageDigest)
MessageDigest with the bytes of the given key (to avoid incidental
 value collisions when values are not particularly unique) and value.