weblogic.cluster.singleton
Interfaces 
ClusterLeaderListener
ConsensusServiceGroupViewListener
LeaseLostListener
LeaseObtainedListener
Leasing
LeasingBasis
MigrationData
MigratorInterface
RemoteLeasingBasis
ServiceLocationSelector
SingletonMonitorRemote
SingletonService
SingletonServicesStateManager
SingletonServicesStateManagerRemote
Classes 
AbstractServiceLocationSelector
BasicServiceLocationSelector
ConfigMigrationProcessor
DatabaseLeasingBasis
DomainMigrationHistoryImpl
LeaseManager
LeaseManagerFactory
MigratableServerService
MigrationDataRuntimeMBeanImpl
MigrationDebugLogger
PreAdminSingletonServicesService
QueryDumper
QueryHelper
QueryHelperImpl
RemoteLeasingBasisImpl
ReplicatedLeasingBasis
ReplicatedSingletonServicesStateManager.HeartbeatMessage
ReplicatedSingletonServicesStateManager.Message
ReplicatedSingletonServicesStateManager.StateDumpMessage
ReplicatedSingletonServicesStateManager.UpdateMessage
ServiceMigrationDataRuntimeMBeanImpl
SimpleLeasingBasis
SimpleLeasingBasis.LeaseEntry
SingletonMonitorServiceTracker
SingletonServicesBatchManager
SingletonServicesDebugLogger
SingletonServicesState
SingletonServiceWrapper
Exceptions 
ClusterReformationInProgressException
DatabaseUnreachableException
LeasingException
MissedHeartbeatException