Package com.bigdata.zookeeper

Interface Summary

HierarchicalZNodeWatcherFlags	Flags for the HierarchicalZNodeWatcher.
ZLock	Distributed synchronous lock.

Class Summary

AbstractZNodeConditionWatcher	An abstract implementation based on synchronized(this) and Object.notify().
AbstractZooPrimitive	Base class for some distributed concurrency patterns using ZooKeeper.
AbstractZooQueue<E extends Serializable>	Basic queue pattern.
DumpZookeeper	Utility for dumping out the portion of a zookeeper ensemble state pertaining to a bigdata federation.
HierarchicalZNodeWatcher	This class accepts a dynamic set of watch criteria and pump events into a queue when any watch was triggered.
UnknownChildrenWatcher	Notices when unknown children appear for the watched node.
ZLockImpl	ZLock implementation class.
ZNodeCreatedWatcher	An instance of this class may be used to watch for a "create" event for a single znode.
ZNodeDeletedWatcher	An instance of this class may be used to watch for the delete of a single znode.
ZooBarrier	Double-barrier using zookeeper.
ZooElection<E extends Serializable>	An election pattern.
ZooHelper	Utility class for issuing the four letter commands to a zookeeper service.
ZooKeeperAccessor	Interface exposing a ZooKeeper client that may be transparently replaced by a new instance in response to a KeeperException.SessionExpiredException.
ZooQueue<E extends Serializable>	Producer-consumer queue.
ZooResourceLockService	Implementation using ZLocks.

Exception Summary

ZLockNodeInvalidatedException

This exception is thrown if there is an attempt to acquire a ZLock but the lock node has been invalidated pending its destruction.