# Package org.apache.cassandra.service

- Interface Summary
  Interface | Description
  --- | ---
  CacheServiceMBean |
  CASRequest | Abstract the conditions and updates for a CAS operation.
  CassandraDaemon.Server |
  GCInspectorMXBean |
  IEndpointLifecycleSubscriber | Interface on which interested parties can be notified of high level endpoint state changes.
  IReadCommand |
  IResponseResolver<TMessage,TResolved> |
  NativeAccessMBean |
  StartupCheck | A test to determine if the system is in a valid state to start up.
  StorageProxy.WritePerformer |
  StorageProxyMBean |
  StorageServiceMBean |

- Class Summary
  Class | Description
  --- | ---
  AbstractReadExecutor | Sends a read request to the replicas needed to satisfy a given ConsistencyLevel.
  AbstractRowResolver |
  AbstractWriteResponseHandler<T> |
  ActiveRepairService | ActiveRepairService is the starting point for manual "active" repairs.
  ActiveRepairService.ParentRepairSession | We keep a ParentRepairSession around for the duration of the entire repair, for example, on a 256 token vnode rf=3 cluster we would have 768 RepairSession but only one ParentRepairSession.
  AsyncRepairCallback |
  CacheService |
  CacheService.CounterCacheSerializer |
  CacheService.KeyCacheSerializer |
  CacheService.RowCacheSerializer |
  CassandraDaemon | The `CassandraDaemon` is an abstraction for a Cassandra daemon service, which defines not only a way to activate and deactivate it, but also hooks into its lifecycle methods (see `CassandraDaemon.setup()`, `CassandraDaemon.start()`, `CassandraDaemon.stop()` and `CassandraDaemon.setup()`).
  ClientState | State related to a client connection.
  ClientWarn |
  ClientWarn.State |
  DatacenterSyncWriteResponseHandler<T> | This class blocks for a quorum of responses _in all datacenters_ (CL.EACH_QUORUM).
  DatacenterWriteResponseHandler<T> | This class blocks for a quorum of responses _in the local datacenter only_ (CL.LOCAL_QUORUM).
  DefaultFSErrorHandler |
  EchoVerbHandler |
  EmbeddedCassandraService | An embedded, in-memory cassandra storage service that listens on the thrift interface as configured in cassandra.yaml This kind of service is useful when running unit tests of services using cassandra for example.
  FileCacheService |
  FileCacheService.CacheKey |
  GCInspector |
  LoadBroadcaster |
  MigrationListener |
  MigrationManager |
  MigrationManager.MigrationsSerializer |
  PendingRangeCalculatorService |
  QueryState | Represents the state related to a given query.
  RangeSliceResponseResolver | Turns RangeSliceReply objects into row (string -> CF) maps, resolving to the most recent ColumnFamily and setting up read repairs as necessary.
  RangeSliceVerbHandler |
  ReadCallback<TMessage,TResolved> |
  RowDataResolver |
  RowDigestResolver |
  SnapshotVerbHandler |
  StartupChecks | Verifies that the system and environment is in a fit state to be started.
  StorageProxy |
  StorageService | This abstraction contains the token/identifier of this node on the identifier space.
  TruncateResponseHandler |
  WriteResponseHandler<T> | Handles blocking writes for ONE, ANY, TWO, THREE, QUORUM, and ALL consistency levels.

- Enum Summary
  Enum | Description
  --- | ---
  ActiveRepairService.Status | Deprecated this statuses are from the previous JMX notification service, which will be deprecated on 4.0.
  CacheService.CacheType |

- Exception Summary
  Exception | Description
  --- | ---
  DigestMismatchException |

Copyright © 2018 The Apache Software Foundation