org.jgroups.blocks

Interface Summary
Interface	Description
BasicConnectionTable.ConnectionListener	Used to be notified about connection establishment and teardown.
BasicConnectionTable.Receiver	Used for message reception.
DistributedHashtable.Notification
DistributedQueue.Notification
DistributedTree.DistributedTreeListener
DistributedTree.ViewListener
Link.Receiver
LockManager	`LockManager` represents generic lock manager that allows obtaining and releasing locks on objects.
LogicalLink.Receiver
MethodLookup
NotificationBus.Consumer
ReplicatedHashtable.Notification
ReplicatedHashtable.StateTransferListener
ReplicatedTree.ReplicatedTreeListener
ReplicationReceiver	Implementation of this interface needs to register with ReplicationManager and will receive updates to be applied to its locally replicated data.
RequestHandler
RpcDispatcher.Marshaller
RspCollector
TwoPhaseVotingListener	Implementations of this interface can participate in two-phase voting process.
VoteResponseProcessor	VoteResultProcessor Applications that use the VotingAdapter and/or TwoPhaseVotingAdapter can pass an implementation of this down the vote calls, to intercept processing of the VoteResults returned by other nodes.
VotingListener	Implemetations of this interface are able to participate in voting process.

Class Summary
Class	Description
BasicConnectionTable	Shared class for TCP connection tables.
ConnectionTable	Manages incoming and outgoing TCP connections.
ConnectionTableNIO	Manages incoming and outgoing TCP connections.
ConnectionTableNIO.SelectorWriteHandler
ConnectionTableNIO.WriteRequest
DistributedHashtable	Provides the abstraction of a java.util.Hashtable that is replicated at several locations.
DistributedLockManager	Distributed lock manager is responsible for maintaining the lock information consistent on all participating nodes.
DistributedLockManager.AcquireLockDecree	This class represents the lock to be released.
DistributedLockManager.LockDecree	This class represents the lock
DistributedLockManager.MultiLockDecree	This class represents the lock that has to be marked as multilocked
DistributedLockManager.ReleaseLockDecree	This class represents the lock to be released.
DistributedQueue	Provides the abstraction of a java.util.LinkedList that is replicated at several locations.
DistributedTree	A tree-like structure that is replicated across several members.
GroupRequest	Sends a message to all members of the group and waits for all responses (or timeout).
Link	Implements a physical link between 2 parties (point-to-point connection).
LogicalLink	Implements a logical point-to-point link between 2 entities consisting of a number of physical links.
MembershipListenerAdapter	This class provides multiplexing possibilities for `MembershipListener` instances.
MessageDispatcher	Provides synchronous and asynchronous message sending with request-response correlation; i.e., matching responses with the original request.
MessageListenerAdapter	This class provides multiplexing possibilities for `MessageListener` instances.
MethodCall	A method call is the JGroups representation of a remote method.
NBMessageForm_NIO	NBMessageForm - Message form for non-blocking message reads.
NotificationBus	This class provides notification sending and handling capability.
PullPushAdapter	Allows a client of `Channel` to be notified when messages have been received instead of having to actively poll the channel for new messages.
PullPushAdapter.PullHeader
ReplicatedHashtable	Provides the abstraction of a java.util.Hashtable that is replicated at several locations.
ReplicatedTree	A tree-like structure that is replicated across several members.
ReplicatedTree.Node
ReplicationData	Class used for data exchange by ReplicationManager and ReplicationReceiver.
ReplicationManager	Class to propagate updates to a number of nodes in various ways: Asynchronous Synchronous Synchronous with locking Note: This class is experimental as of Oct 2002
RequestCorrelator	Framework to send requests and receive matching responses (matching on request ID).
RequestCorrelator.Header	The header for `RequestCorrelator` messages
RpcDispatcher	This class allows a programmer to invoke remote methods in all (or single) group members and optionally wait for the return value(s).
TwoPhaseVotingAdapter	This adapter introduces simple two-phase voting on a specified decree.
TwoPhaseVotingAdapter.TwoPhaseVoteWrapper
TwoPhaseVotingAdapter.TwoPhaseWrapper	Wrapper of the decree to voting decree.
VotingAdapter	Voting adapter provides a voting functionality for an application.
VotingAdapter.FailureVoteResult	Class that represents a result of local voting on the failed node.
VotingAdapter.VoteResult	This class represents the result of local voting.
Xid	Distributed transaction ID modeled after the JTA spec.

Exception Summary
Exception	Description
LockingException
LockMultiLockedException	Thrown by the `DistributedLockManager.unlock(Object, Object, boolean)` method if a lock is only locally released, because it is locked by multiple DistributedLockManagers.
LockNotGrantedException	This exception indicated that lock manager refused to give a lock on some resource.
LockNotReleasedException	This exception indicated that lock manager refused to release a lock on some resource.
UpdateException
VoteException	This exception is thrown when voting listener cannot vote on the specified decree.

Package org.jgroups.blocks Description

Provides building blocks that are layered on top of channels. Most of them do not even need a channel, all they need is a class that implements interface Transport (channels do). This enables them to work on any type of group transport that obeys this interface. Building blocks can be used instead of channels whenever a higher-level interface is required. Whereas channels are simple socket-like constructs, building blocks may offer a far more sophisticated interface. In some cases, building blocks offer access to the underlying channel, so that - if the building block at hand does not offer a certain functionality - the channel can be accessed directly.