Method Detail

• isEnabled

   abstract boolean isEnabled()

  Tells if this cache is enabled. It's important for some caches that can be disabled withoutfurther notice (like in removable/unmountable storage). Anyway a disabled cache should justignore calls, not fail.

• getResource

  @Nullable() abstract BinaryResource getResource(CacheKey key)

  Returns the binary resource cached with key.

• hasKeySync

   abstract boolean hasKeySync(CacheKey key)

  Returns true if the key is in the in-memory key index.

  Not guaranteed to be correct. The cache may yet have this key even if this returns false.But if it returns true, it definitely has it.

  Avoids a disk read.

• hasKey

   abstract boolean hasKey(CacheKey key)

• probe

   abstract boolean probe(CacheKey key)

• insert

  @Nullable() abstract BinaryResource insert(CacheKey key, WriterCallback writer)

  Inserts resource into file with key

  Parameters:

  key - cache key

  writer - Callback that writes to an output stream

• remove

   abstract void remove(CacheKey key)

  Removes a resource by key from cache.

  Parameters:

  key - cache key

• getSize

   abstract long getSize()

• getCount

   abstract long getCount()

• clearOldEntries

   abstract long clearOldEntries(long cacheExpirationMs)

  Deletes old cache files.

  Parameters:

  cacheExpirationMs - files older than this will be deleted.

• clearAll

   abstract void clearAll()

• getDumpInfo

   abstract DiskStorage.DiskDumpInfo getDumpInfo()