com.baidu.hugegraph.concurrent

Class KeyLock

java.lang.Object

com.baidu.hugegraph.concurrent.KeyLock

public class KeyLock
extends Object

KeyLock provide an interface of segment lock

Constructor Summary

Constructors

Constructor and Description
KeyLock()
KeyLock(int size)

Method Summary

Modifier and Type	Method and Description
Lock	lock(Object key) Lock an object
List<Lock>	lockAll(Object... keys) Lock a list of object with sorted order
List<Lock>	lockAll(Object key1, Object key2) Lock two objects with sorted order NOTE: This is to optimize the performance of lockAll(keys)
void	unlock(Object key) Unlock an object
void	unlockAll(List<Lock> locks) Unlock a list of object

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyLock

public KeyLock()

KeyLock

public KeyLock(int size)

Method Detail

lock

public final Lock lock(Object key)

Lock an object

Parameters:

key - The object to lock

Returns:

The lock(locked) of passed key

unlock

public final void unlock(Object key)

Unlock an object

Parameters:

key - The object to unlock

lockAll

public final List<Lock> lockAll(Object... keys)

Lock a list of object with sorted order

Parameters:

keys - The objects to lock

Returns:

The locks(locked) of keys

lockAll

public List<Lock> lockAll(Object key1,
                          Object key2)

Lock two objects with sorted order NOTE: This is to optimize the performance of lockAll(keys)

Parameters:

key1 - The first object

key2 - The second object

Returns:

locks for the two objects

unlockAll

public final void unlockAll(List<Lock> locks)

Unlock a list of object

Parameters:

locks - The locks to unlock