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 AbstractPool

deadlockMonitor, lockTable

Constructor Summary

Constructors

Constructor	Description
ConcurrentPool()

Method Summary

Modifier and Type	Method	Description
protected LockTable	createLockTable()	Create the ConcurrentLockSet object that keeps the locks.

Methods inherited from class 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 Object

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

Constructor Details

ConcurrentPool

public ConcurrentPool()

Method Details

createLockTable

protected LockTable createLockTable()

Create the ConcurrentLockSet object that keeps the locks.

Specified by:

createLockTable in class AbstractPool

Returns:

a ConcurrentLockSet