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

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

All Implemented Interfaces:

LockFactory, PropertySetCallback

public final class ConcurrentPool
extends AbstractPool

A LockFactory which allows multiple threads to enter without blocking each other out.

Field Summary

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

deadlockMonitor, lockTable

Constructor Summary

ConcurrentPool()

Method Summary

protected LockTable

createLockTable() Create the ConcurrentLockSet 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

ConcurrentPool

public ConcurrentPool()

Method Detail

createLockTable

protected LockTable createLockTable()

Create the ConcurrentLockSet object that keeps the locks.

Specified by:

createLockTable in class AbstractPool

Returns:

a ConcurrentLockSet