org.jboss.cache.lock
Class LockStrategySerializable

java.lang.Object
  org.jboss.cache.lock.LockStrategySerializable

All Implemented Interfaces:

LockStrategy

public class LockStrategySerializable
extends java.lang.Object
implements LockStrategy

Lock strategy of Serializable that prevents dirty read, non-repeatable read, and phantom read.

Dirty read allows (t1) write and then (t2) read within two separate threads, all without transaction commit.

Non-repeatable read allows (t1) read, (t2) write, and then (t1) read, all without transaction commit.

Phantom read allows (t1) read n rows, (t2) insert k rows, and (t1) read n+k rows.

Version:

$Revision: 1.4 $

Author:

Ben Wang July 15, 2003

Constructor Summary

LockStrategySerializable()

Method Summary

java.util.concurrent.locks.Lock	readLock() Return a read lock object.
java.util.concurrent.locks.Lock	upgradeLockAttempt(long msecs) Attempt to upgrade the current read lock to write lock with msecs timeout.
java.util.concurrent.locks.Lock	writeLock() Return a write lock object.

Methods inherited from class java.lang.Object

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

Constructor Detail

LockStrategySerializable

public LockStrategySerializable()

Method Detail

readLock

public java.util.concurrent.locks.Lock readLock()

Description copied from interface: LockStrategy

Return a read lock object.

Specified by:

readLock in interface LockStrategy

See Also:

LockStrategy.readLock()

upgradeLockAttempt

public java.util.concurrent.locks.Lock upgradeLockAttempt(long msecs)
                                                   throws UpgradeException

Description copied from interface: LockStrategy

Attempt to upgrade the current read lock to write lock with msecs timeout.

Specified by:

upgradeLockAttempt in interface LockStrategy

Parameters:

msecs - Timeout in milliseconds.

Returns:

Lock object. Will return null if timeout or failed.

Throws:

UpgradeException

See Also:

LockStrategy.upgradeLockAttempt(long)

writeLock

public java.util.concurrent.locks.Lock writeLock()

Description copied from interface: LockStrategy

Return a write lock object.

Specified by:

writeLock in interface LockStrategy

See Also:

LockStrategy.writeLock()