| Interface | Description | 
|---|---|
| CPGroup | Contains information about a CP group. | 
| CPGroupId | Identifier for CP groups. | 
| CPMember | A CP member is a Hazelcast member that is internally elected to be part of
 the  CPSubsystem, hence maintain CP data structures. | 
| CPSubsystem | CP Subsystem is a component of Hazelcast that builds a strongly consistent
 layer for a set of distributed data structures. | 
| CPSubsystemManagementService | This interface offers APIs for managing CP members and groups. | 
| IAtomicLong | IAtomicLong is a redundant and highly available distributed alternative to
 the  AtomicLong. | 
| IAtomicReference<E> | IAtomicReference is a redundant and highly available distributed alternative
 to the  AtomicReference. | 
| ICountDownLatch | ICountDownLatch is a backed-up distributed alternative to the
  java.util.concurrent.CountDownLatch. | 
| ISemaphore | ISemaphore is a fault-tolerant distributed alternative to the
  Semaphore. | 
| Enum | Description | 
|---|---|
| CPGroup.CPGroupStatus | Represents status of a CP group | 
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