NonReentrantLock (JBoss Server API) - JBoss 4.0.1 sp1 server API Documentation 英文版文档

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org.jboss.ejb.plugins.lock
Class NonReentrantLock

java.lang.Object
  org.jboss.ejb.plugins.lock.NonReentrantLock

All Implemented Interfaces:: org.jboss.util.deadlock.Resource

public class NonReentrantLock
extends Object
implements org.jboss.util.deadlock.Resource

Implementents a non reentrant lock with deadlock detection

It will throw a ReentranceException if the same thread tries to acquire twice or the same transaction tries to acquire twice

Version:: $Revision: 1.4 $
Author:: Bill Burke, Alexey Loubyansky

Nested Class Summary

static class NonReentrantLock.ReentranceException


Field Summary

protected int held


protected Transaction holdingTx


protected Object lock


protected Thread lockHolder


Constructor Summary

NonReentrantLock()


Method Summary

protected boolean acquireNonReentrant(long waitTime, Transaction miTx)


protected boolean acquireReentrant(long waitTime, Transaction miTx)


boolean attempt(long waitTime, Transaction miTx, boolean nonReentrant)


Object getResourceHolder()


void release(boolean nonReentrant)


Methods inherited from class java.lang.Object

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

Field Detail

lockHolder

protected Thread lockHolder

lock

protected Object lock

held

protected volatile int held

holdingTx

protected Transaction holdingTx

Constructor Detail

NonReentrantLock

public NonReentrantLock()

Method Detail

getResourceHolder

public Object getResourceHolder()

Specified by:: getResourceHolder in interface org.jboss.util.deadlock.Resource

acquireNonReentrant

protected boolean acquireNonReentrant(long waitTime,
                                      Transaction miTx)
                               throws org.jboss.util.deadlock.ApplicationDeadlockException,
                                      InterruptedException,
                                      NonReentrantLock.ReentranceException

Throws:: org.jboss.util.deadlock.ApplicationDeadlockException; InterruptedException; NonReentrantLock.ReentranceException

acquireReentrant

protected boolean acquireReentrant(long waitTime,
                                   Transaction miTx)
                            throws org.jboss.util.deadlock.ApplicationDeadlockException,
                                   InterruptedException,
                                   NonReentrantLock.ReentranceException

Throws:: org.jboss.util.deadlock.ApplicationDeadlockException; InterruptedException; NonReentrantLock.ReentranceException

attempt

public boolean attempt(long waitTime,
                       Transaction miTx,
                       boolean nonReentrant)
                throws org.jboss.util.deadlock.ApplicationDeadlockException,
                       InterruptedException,
                       NonReentrantLock.ReentranceException

Throws:: org.jboss.util.deadlock.ApplicationDeadlockException; InterruptedException; NonReentrantLock.ReentranceException

release

public void release(boolean nonReentrant)