| Package | Description | 
|---|---|
| com.hazelcast.console | This package contains classes related to ConsoleApp | 
| com.hazelcast.core | Provides core API interfaces/classes. | 
| com.hazelcast.cp | Contains public APIs of CP Subsystem | 
| com.hazelcast.cp.event | Contains definitions of CP Subsystem events and listeners. | 
| com.hazelcast.cp.exception | Contains exceptions that can be thrown by APIs of CP Subsystem | 
| com.hazelcast.cp.lock | Contains locking APIs of CP Subsystem | 
| Class and Description | 
|---|
| IAtomicLong IAtomicLong is a redundant and highly available distributed alternative to
 the  AtomicLong. | 
| Class and Description | 
|---|
| CPSubsystem CP Subsystem is a component of Hazelcast that builds a strongly consistent
 layer for a set of distributed data structures. | 
| Class and Description | 
|---|
| CPGroup Contains information about a CP group. | 
| CPGroup.CPGroupStatus Represents status of 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. | 
| 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 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. | 
| Class and Description | 
|---|
| 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. | 
| Class and Description | 
|---|
| CPGroupId Identifier for CP groups. | 
| Class and Description | 
|---|
| CPGroupId Identifier for CP groups. | 
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