weblogic.cluster.singleton (Oracle WebLogic Server API Reference)

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Oracle Fusion Middleware
Oracle WebLogic Server API Reference
11g Release 1 (10.3.6)

Part Number E13941-06

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Package weblogic.cluster.singleton

Provides interfaces and classes for Clusters.

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Description

Interface Summary
ClusterLeaderListener	Listener that is called when the local server becomes the cluster leader.
ConsensusServiceGroupViewListener	Listener that is called when the group view of the cluster leader changes.
LeaseLostListener
LeaseObtainedListener
Leasing	The Leasing interface provides access to leasing services, which allow servers in the cluster to gain exclusive ownership over named entities.
LeasingBasis	A LeasingBasis provides the underpinnings for implementing the LeaseManager.
MemberDeathDetector
MemberDeathDetectorHeartbeatReceiverIntf
MigrationData	Information about one ongoing or completed migration.
MigratorInterface
RemoteLeasingBasis	A RemoteLeasingBasis provides a remote implementation of `LeasingBasis`.
ServiceLocationSelector	Different migration policies like Exactly-once or Failure-recovery have different rules for selecting the next server for migration.
SingletonMonitorRemote
SingletonService	This interface defines a stateless lightweight singeton service that has the following contract: Activate is invoked on one and only one server in a cluster Deactivate can be called anytime after activate is called.
SingletonServicesStateManager
SingletonServicesStateManagerRemote

Class Summary
AbstractServiceLocationSelector	This class is the base class for all the ServiceLocationSelector interface implementations.
BasicServiceLocationSelector	Round-robin server selection algorithm
ConfigMigrationProcessor
DatabaseLeasingBasis	`LeasingBasis` that leverages an HA-database for lease ownership.
DomainMigrationHistoryImpl	Holds the migration history of all domain members for exposure through console.
LeaseManager	Implementation of the `Leasing` interface.
LeaseManagerFactory
MigratableServerService	MigratableServerService registers ServerMigrationCoordinator with the MBean server and creates the ClusterMaster Leasing implementation.
MigrationDataRuntimeMBeanImpl
MigrationDebugLogger
PostAdminSingletonServicesService
PreAdminSingletonServicesService
QueryDumper
QueryHelper	Helper class for ClusterMaster to determine servers that are unresponsive and to find lease owners.
QueryHelperImpl	Helper class for ClusterMaster to determine servers that are unresponsive and to find lease owners.
RemoteLeasingBasisImpl	Remote implementation of `RemoteLeasingBasis` as a wrapper around a `LeasingBasis`.
ReplicatedLeasingBasis	`LeasingBasis` that delegates to replicated remote instances.
ReplicatedSingletonServicesStateManager.HeartbeatMessage
ReplicatedSingletonServicesStateManager.Message
ReplicatedSingletonServicesStateManager.StateDumpMessage
ReplicatedSingletonServicesStateManager.UpdateMessage
ServiceMigrationDataRuntimeMBeanImpl
SimpleLeasingBasis	Dumb `LeasingBasis` that holds leases in-memory.
SimpleLeasingBasis.LeaseEntry
SingletonMonitorServiceTracker
SingletonServicesBatchManager
SingletonServicesDebugLogger
SingletonServicesManager.Util
SingletonServicesState
SingletonServiceWrapper

Exception Summary
ClusterReformationInProgressException	ClusterReformationInProgressException is just a tagging exception on top of IOException to indicate to the caller that consensus is going on right now.
DatabaseUnreachableException
LeasingException
MissedHeartbeatException	Exception that is sent by a `LeasingBasis` implementation if it failed to deliver a heartbeat in a suitable time interval.

Package weblogic.cluster.singleton Description