com.orientechnologies.common.concur.lock

Class OIndexOneEntryPerKeyLockManager<T>

java.lang.Object

com.orientechnologies.common.concur.lock.OIndexOneEntryPerKeyLockManager<T>

All Implemented Interfaces:

OLockManager<T>

public class OIndexOneEntryPerKeyLockManager<T>
extends Object
implements OLockManager<T>

Basically the same thing as OOneEntryPerKeyLockManager, but uses ConcurrentHashMap internally which has better memory footprint.

Constructor Summary

Constructors

Constructor and Description
OIndexOneEntryPerKeyLockManager()
OIndexOneEntryPerKeyLockManager(int concurrencyLevel)

Method Summary

Modifier and Type	Method and Description
Lock	acquireExclusiveLock(T key)
Lock[]	acquireExclusiveLocksInBatch(Collection<T> keys)
Lock[]	acquireExclusiveLocksInBatch(T... keys)
Lock	acquireSharedLock(T key)
Lock[]	acquireSharedLocksInBatch(T... keys)
int	getLockCount()
void	lockAllExclusive()
void	releaseExclusiveLock(T key)
void	releaseSharedLock(T key)
void	unlockAllExclusive()

Methods inherited from class java.lang.Object

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

Constructor Detail

OIndexOneEntryPerKeyLockManager

public OIndexOneEntryPerKeyLockManager()

OIndexOneEntryPerKeyLockManager

public OIndexOneEntryPerKeyLockManager(int concurrencyLevel)

Method Detail

acquireSharedLock

public Lock acquireSharedLock(T key)

Specified by:

acquireSharedLock in interface OLockManager<T>

releaseSharedLock

public void releaseSharedLock(T key)

Specified by:

releaseSharedLock in interface OLockManager<T>

acquireExclusiveLock

public Lock acquireExclusiveLock(T key)

Specified by:

acquireExclusiveLock in interface OLockManager<T>

releaseExclusiveLock

public void releaseExclusiveLock(T key)

Specified by:

releaseExclusiveLock in interface OLockManager<T>

acquireSharedLocksInBatch

public Lock[] acquireSharedLocksInBatch(T... keys)

Specified by:

acquireSharedLocksInBatch in interface OLockManager<T>

acquireExclusiveLocksInBatch

public Lock[] acquireExclusiveLocksInBatch(T... keys)

Specified by:

acquireExclusiveLocksInBatch in interface OLockManager<T>

acquireExclusiveLocksInBatch

public Lock[] acquireExclusiveLocksInBatch(Collection<T> keys)

Specified by:

acquireExclusiveLocksInBatch in interface OLockManager<T>

lockAllExclusive

public void lockAllExclusive()

Specified by:

lockAllExclusive in interface OLockManager<T>

unlockAllExclusive

public void unlockAllExclusive()

Specified by:

unlockAllExclusive in interface OLockManager<T>

getLockCount

public int getLockCount()