org.apache.derby.impl.services.locks
Class SinglePool

java.lang.Object
  org.apache.derby.impl.services.locks.AbstractPool
      org.apache.derby.impl.services.locks.SinglePool

All Implemented Interfaces:

LockFactory, PropertySetCallback

public final class SinglePool
extends AbstractPool

An implementation of LockFactory that uses a single pool for the locks, i.e. all lock requests go through a single point of synchronisation.
MT - Mutable - Container Object : Thread Aware

Field Summary

Fields inherited from class org.apache.derby.impl.services.locks.AbstractPool

deadlockMonitor, lockTable

Constructor Summary

SinglePool()

Method Summary

protected LockTable

createLockTable() Create the LockSet object that keeps the locks.

Methods inherited from class org.apache.derby.impl.services.locks.AbstractPool

anyoneBlocked, apply, areLocksHeld, areLocksHeld, clearLimit, createCompatibilitySpace, getWaitTimeout, init, isLockHeld, lockObject, makeVirtualLockTable, map, noLockWait, setLimit, transfer, unlock, unlockGroup, unlockGroup, validate, zeroDurationlockObject

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SinglePool

public SinglePool()

Method Detail

createLockTable

protected LockTable createLockTable()

Create the LockSet object that keeps the locks.

Specified by:

createLockTable in class AbstractPool

Returns:

a LockSet