Package com.sleepycat.je.rep.monitor

BDB JE HA support for applications that need to track the composition of a replication group, in order to do tasks such as load balancing and request routing.

Package Specification

The Monitor is intended for applications that do not directly reference ReplicatedEnvironment, but need to track the composition of a replication group and the current Master. A Monitor tracks changes in replication group membership and roles.

See Also:

Replication Guide, Writing Monitor Nodes

Interface Summary

Interface	Description
MonitorChangeListener	Applications can register for Monitor event notification through Monitor.startListener(com.sleepycat.je.rep.monitor.MonitorChangeListener).

Class Summary

Class	Description
GroupChangeEvent	The event generated when the group composition changes.
JoinGroupEvent	The event generated when a node joins the group.
LeaveGroupEvent	The event generated when a node leaves the group.
MemberChangeEvent	MemberChangeEvent is the base class for all member status changed events.
Monitor	Provides a lightweight mechanism to track the current master node and the members of the replication group.
MonitorChangeEvent	MonitorChangeEvent is the base class for all Monitor events.
MonitorConfig	Specifies the attributes used by a replication Monitor.
MonitorConfigBeanInfo
NewMasterEvent	The event generated upon detecting a new Master.

Enum Summary

Enum	Description
GroupChangeEvent.GroupChangeType	The kind of GroupChangeEvent.
LeaveGroupEvent.LeaveReason	The reason for why the node leaves the group.