| Package | Description | 
|---|---|
| com.hazelcast.cache.impl.journal | |
| com.hazelcast.concurrent.lock | |
| com.hazelcast.concurrent.lock.operations | This package contains the operations on the ILock. | 
| com.hazelcast.internal.cluster.impl | This package contains the implementation of the cluster functionality. | 
| com.hazelcast.internal.cluster.impl.operations | This package contains operations for the com.hazelcast.cluster.impl package. | 
| com.hazelcast.internal.partition.operation | Contains the operations for partition package. | 
| com.hazelcast.internal.usercodedeployment.impl | |
| com.hazelcast.map.impl.journal | |
| com.hazelcast.map.impl.operation | Package for map operations. | 
| com.hazelcast.ringbuffer.impl | Contains the  Ringbufferimplementation classes. | 
| com.hazelcast.ringbuffer.impl.operations | |
| com.hazelcast.spi.impl.eventservice.impl.operations | Contains the operations for the  EventServiceImpl. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CacheEventJournalReadResultSetImpl<K,V,T> | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LockStoreImpl | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AbstractLockOperation | 
| class  | AwaitBackupOperation | 
| class  | AwaitOperation | 
| class  | BeforeAwaitBackupOperation | 
| class  | BeforeAwaitOperation | 
| class  | GetLockCountOperation | 
| class  | GetRemainingLeaseTimeOperation | 
| class  | IsLockedOperation | 
| class  | LocalLockCleanupOperation | 
| class  | LockBackupOperation | 
| class  | LockOperation | 
| class  | LockReplicationOperation | 
| class  | SignalBackupOperation | 
| class  | SignalOperation | 
| class  | UnlockBackupOperation | 
| class  | UnlockIfLeaseExpiredOperation | 
| class  | UnlockOperation | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | SplitBrainJoinMessageA  JoinMessageissued by the master node of a subcluster to the master of another subcluster
 while searching for other clusters for split brain recovery. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | FinalizeJoinOpSent by the master to all members to finalize the join operation from a joining/returning node. | 
| class  | HeartbeatOpA heartbeat sent from one cluster member to another. | 
| class  | MasterConfirmationOp | 
| class  | MembersUpdateOp | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | PartitionBackupReplicaAntiEntropyOperation | 
| class  | PartitionReplicaSyncRequestThe request sent from a replica to the partition owner to synchronize the replica data. | 
| class  | PartitionReplicaSyncResponseThe replica synchronization response sent from the partition owner to a replica. | 
| class  | PartitionReplicaSyncRetryResponseThe response to a  PartitionReplicaSyncRequestthat the replica should retry. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ClassDataCarries byte code of a class along with its inner classes. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | MapEventJournalReadResultSetImpl<K,V,T> | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | MapReplicationStateHolderHolder for raw IMap key-value pairs and their metadata. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ReadResultSetImpl<O,E>A list for the  ReadManyOperation. | 
| class  | RingbufferContainer<T>The RingbufferContainer is responsible for creating the actual ring buffer, handling optional ring buffer storage,
 keeping the wait/notify key for blocking operations, ring buffer item expiration and other things not related to the
 actual ring buffer data structure. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ReplicationOperation | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DeregistrationOperation | 
| class  | RegistrationOperation | 
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