# Package org.apache.cassandra.index.transactions

- Interface Summary
  Interface | Description
  --- | ---
  CleanupTransaction | Performs garbage collection of index entries during a cleanup.
  CompactionTransaction | Performs garbage collection of stale index entries during a regular compaction.
  IndexTransaction | Base interface for the handling of index updates.
  UpdateTransaction | Handling of index updates on the write path.

- Enum Summary
  Enum | Description
  --- | ---
  IndexTransaction.Type | Used to differentiate between type of index transaction when obtaining a handler from Index implementations.

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