# Uses of Package
org.apache.cassandra.hints

- Packages that use org.apache.cassandra.hints
  Package | Description
  --- | ---
  org.apache.cassandra.hints | Hints subsystem consists of several components.

- Classes in org.apache.cassandra.hints used by org.apache.cassandra.hints
  Class and Description
  ChecksummedDataInput A `RandomAccessReader` wrapper that calculates the CRC in place.
  Hint Encapsulates the hinted mutation, its creation time, and the gc grace seconds param for each table involved.
  HintMessage The message we use to dispatch and forward hints.
  HintResponse An empty successful response to a HintMessage.
  HintsService A singleton-ish wrapper over various hints components: - a catalog of all hints stores - a single-threaded write executor - a multi-threaded dispatch executor - the buffer pool for writing hints into The front-end for everything hints related.
  HintsServiceMBean
  InputPosition Marker interface for file positions as provided by the various ChecksummedDataReader implementations.

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