com.nhncorp.neptune.common
Class NeptuneLock

java.lang.Object
  com.nhncorp.neptune.common.NeptuneLock

public class NeptuneLock
extends java.lang.Object

HLocking is a set of lock primitives that does not rely on a particular thread holding the monitor for an object. This is especially important when a lock must persist over multiple RPC's since there is no guarantee that the same Server thread will handle all the RPC's until the lock is released. Not requiring that the locker thread is same as unlocking thread is the key distinction between this class and ReentrantReadWriteLock.

For each independent entity that needs locking, create a new HLocking instance.

Constructor Summary

NeptuneLock()
Constructor

Method Summary

void	obtainReadLock() Caller needs the nonexclusive read-lock
void	obtainWriteLock() Caller needs the exclusive write-lock
void	releaseReadLock() Caller is finished with the nonexclusive read-lock
void	releaseWriteLock() Caller is finished with the write lock

Methods inherited from class java.lang.Object

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

Constructor Detail

NeptuneLock

public NeptuneLock()

Constructor

Method Detail

obtainReadLock

public void obtainReadLock()

Caller needs the nonexclusive read-lock

releaseReadLock

public void releaseReadLock()

Caller is finished with the nonexclusive read-lock

obtainWriteLock

public void obtainWriteLock()

Caller needs the exclusive write-lock

releaseWriteLock

public void releaseWriteLock()

Caller is finished with the write lock