Package org.apache.derby.impl.services.locks

Interface Summary

Interface	Description
Control
LockTable	Interface which must be implemented by lock table classes.

Class Summary

Class	Description
AbstractPool	An abstract implementation of LockFactory that allows different implementations of the lock table to be plugged in.
ActiveLock	A Lock represents a granted or waiting lock request.
ConcurrentLockSet	A ConcurrentLockSet is a complete lock table which maps Lockables to LockControl objects.
ConcurrentLockSet.Entry	Class representing an entry in the lock table.
ConcurrentPool	A LockFactory which allows multiple threads to enter without blocking each other out.
Constants
D_ActiveLock
D_Lock
D_LockControl
Deadlock	Code to support deadlock detection.
Lock	A Lock represents a granted or waiting lock request.
LockControl	A LockControl contains a reference to the item being locked and doubly linked lists for the granted locks and the waiting locks.
LockList	An Enumeration that returns the the Lockables in a group.
LockSet	A LockSet is a complete lock table.
LockSpace	A LockSpace represents the complete set of locks held within a single compatibility space, broken into groups of locks.
LockTableVTI	This provides an Enumeration of Latch's from a clone of the lock table.
SinglePool	An implementation of LockFactory that uses a single pool for the locks, i.e. all lock requests go through a single point of synchronisation.
TableNameInfo
Timeout	Code to support Timeout error output.