Package com.semedy.reasoner.utils.upgradeablelock

Class CompositeLock

java.lang.Object

com.semedy.reasoner.utils.upgradeablelock.CompositeLock

All Implemented Interfaces:

Lock

public class CompositeLock
extends Object
implements Lock

A lock spanning a group of backing locks. When this composite lock is locked, it locks all backing locks, and when unlocked, it unlocks all backing locks. Employs roll back logic to ensure that either all locks are acquired or no locks are acquired. Locks are unlocked in the reverse of the order in which the were acquired. This class delegates most of its implementation to the Locks utility class.

Author:

Niall Gallagher

Constructor Summary

Constructors

Constructor	Description
CompositeLock(Lock... locks)
CompositeLock(Deque<Lock> locks)

Method Summary

Modifier and Type	Method	Description
void	lock()
void	lockInterruptibly()
Condition	newCondition()
boolean	tryLock()
boolean	tryLock(long time, TimeUnit unit)
void	unlock()

Methods inherited from class java.lang.Object

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

Constructor Details

CompositeLock

public CompositeLock(Lock... locks)

CompositeLock

public CompositeLock(Deque<Lock> locks)

Method Details

lock

public void lock()

Specified by:

lock in interface Lock

lockInterruptibly

public void lockInterruptibly()
                       throws InterruptedException

Specified by:

lockInterruptibly in interface Lock

Throws:

InterruptedException

tryLock

public boolean tryLock()

Specified by:

tryLock in interface Lock

tryLock

public boolean tryLock(long time,
 TimeUnit unit)
                throws InterruptedException

Specified by:

tryLock in interface Lock

Throws:

InterruptedException

unlock

public void unlock()

Specified by:

unlock in interface Lock

newCondition

public Condition newCondition()

Specified by:

newCondition in interface Lock