org.jboss.cache.lock
Class LockUtil

java.lang.Object
  org.jboss.cache.lock.LockUtil

public abstract class LockUtil
extends Object

Constructor Summary

LockUtil()

Method Summary

static boolean	breakTransactionLock(NodeLock lock, GlobalTransaction gtx, boolean localTx, CacheImpl cache)
static void	forceAcquireLock(NodeSPI<?,?> node, Object newOwner, CacheImpl cache, boolean lockChildren) Forcibly acquire a read lock on the given node for the given owner, breaking any existing locks that prevent the read lock.

Methods inherited from class java.lang.Object

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

Constructor Detail

LockUtil

public LockUtil()

Method Detail

breakTransactionLock

public static boolean breakTransactionLock(NodeLock lock,
                                           GlobalTransaction gtx,
                                           boolean localTx,
                                           CacheImpl cache)

forceAcquireLock

public static void forceAcquireLock(NodeSPI<?,?> node,
                                    Object newOwner,
                                    CacheImpl cache,
                                    boolean lockChildren)

Forcibly acquire a read lock on the given node for the given owner, breaking any existing locks that prevent the read lock. If the existing lock is held by a GlobalTransaction, breaking the lock may result in a rollback of the transaction.

Parameters:

node - the node

newOwner - the new owner (usually a Thread or GlobalTransaction)

lockChildren - true if this method should be recursively applied to node's children.