org.ovirt.engine.core.utils.lock

Class InMemoryLockManager

java.lang.Object

org.ovirt.engine.core.utils.lock.InMemoryLockManager

All Implemented Interfaces:

LockManager

public class InMemoryLockManager
extends Object
implements LockManager

The following class an implementation of internal locking mechanism

Constructor Summary

Constructors

Constructor and Description
InMemoryLockManager()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	acquireLock(EngineLock lock) The following method will try to acquire provided lock
void	acquireLockWait(EngineLock lock) The following method will try to acquire lock and will wait until lock acquired
void	clear() The following method will clear all inserted locks
void	releaseLock(EngineLock lock) The following method will release a lock Also it will notify all threads awaiting inside acquireLockWait that some lock was released and they can try to acquire a lock

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemoryLockManager

public InMemoryLockManager()

Method Detail

acquireLock

public boolean acquireLock(EngineLock lock)

Description copied from interface: LockManager

The following method will try to acquire provided lock

Specified by:

acquireLock in interface LockManager

Returns:

true - in case of locked was acquired , false - otherwise

acquireLockWait

public void acquireLockWait(EngineLock lock)

Description copied from interface: LockManager

The following method will try to acquire lock and will wait until lock acquired

Specified by:

acquireLockWait in interface LockManager

releaseLock

public void releaseLock(EngineLock lock)

Description copied from interface: LockManager

The following method will release a lock Also it will notify all threads awaiting inside acquireLockWait that some lock was released and they can try to acquire a lock

Specified by:

releaseLock in interface LockManager

clear

public void clear()

Description copied from interface: LockManager

The following method will clear all inserted locks

Specified by:

clear in interface LockManager