Package org.janusgraph.diskstorage.locking

Interface Summary

Interface	Description
LocalLockMediatorProvider	Service provider interface for LocalLockMediators.
Locker	Threadsafe discretionary locking within and between processes JanusGraph.
LockerProvider
LockStatus	A single held lock's expiration time.

Class Summary

Class	Description
AbstractLocker<S extends LockStatus>	Abstract base class for building lockers.
AbstractLocker.Builder<S,B extends AbstractLocker.Builder<S,B>>	Abstract builder for this Locker implementation.
LocalLockMediator<T>	This class resolves lock contention between two transactions on the same JVM.
LockerState<S>	A store for LockStatus objects.

Enum Summary

Enum	Description
LocalLockMediators	A singleton maintaining a globally unique map of LocalLockMediator instances.

Exception Summary

Exception	Description
PermanentLockingException	This exception signifies a failure to lock based on durable state.
TemporaryLockingException	This exception signifies a (potentially) temporary exception while attempting to acquire a lock in the JanusGraph storage backend.