| Name | Description | Type | Package | Framework |
| AbstractZKClient | An abstract base implementation of ZKClient that simplifies implementation by providing forwarding for methods that are meant to be delegated to other methods. | Class | apache.twill.zookeeper | Apache Twill |
| ACLData | Represents result of call to ZKClient. | Interface | apache.twill.zookeeper | Apache Twill |
| ForwardingZKClient | Class | apache.twill.zookeeper | Apache Twill | |
| ForwardingZKClientService | Class | apache.twill.zookeeper | Apache Twill | |
| NodeChildren | Represents result of call to ZKClient. | Interface | apache.twill.zookeeper | Apache Twill |
| NodeData | Represents result of call to ZKClient. | Interface | apache.twill.zookeeper | Apache Twill |
| OperationFuture | A ListenableFuture that also provides the requested path for a operation. | Interface | apache.twill.zookeeper | Apache Twill |
| RetryStrategies | Factory for creating common RetryStrategy implementation. | Class | apache.twill.zookeeper | Apache Twill |
| RetryStrategy | Provides strategy to use for operation retries. | Interface | apache.twill.zookeeper | Apache Twill |
| RetryStrategy .OperationType | Defines ZooKeeper operation type that triggers retry. | Class | apache.twill.zookeeper.RetryStrategy | Apache Twill |
| ZKClient | A ZooKeeper client that provides asynchronous zookeeper operations. | Interface | apache.twill.zookeeper | Apache Twill |
| ZKClients | Utility class to create ZKClient instances. | Class | apache.twill.zookeeper | Apache Twill |
| ZKClientService | A ZKClient that extends from Service to provide lifecycle management functions. | Interface | apache.twill.zookeeper | Apache Twill |
| ZKClientService .Builder | Builder for creating an implementation of ZKClientService. | Class | apache.twill.zookeeper.ZKClientService | Apache Twill |
| ZKClientServices | Provides static factory method to create ZKClientService with modified behaviors. | Class | apache.twill.zookeeper | Apache Twill |
| ZKOperations | Collection of helper methods for common operations that usually needed when interacting with ZooKeeper. | Class | apache.twill.zookeeper | Apache Twill |
| ZKOperations .ChildrenCallback | Interface | apache.twill.zookeeper.ZKOperations | Apache Twill | |
| ZKOperations .DataCallback | Interface | apache.twill.zookeeper.ZKOperations | Apache Twill | |