org.jboss.stm.internal.optimistic

Class OptimisticLockManager

java.lang.Object

com.arjuna.ats.arjuna.StateManager

com.arjuna.ats.txoj.LockManager

org.jboss.stm.internal.optimistic.OptimisticLockManager

Direct Known Subclasses:

OptimisticLockManagerProxy

public class OptimisticLockManager
extends LockManager

Field Summary

Fields inherited from class com.arjuna.ats.txoj.LockManager

conflictManager, defaultRetry, defaultSleepTime, DOZE_TIME, hasBeenLocked, locksHeld, locksHeldLockObject, lockStore, lockStoreType, mutex, nestedLocking, objectLocked, stateLoaded, systemKey, waitTotalTimeout

Fields inherited from class com.arjuna.ats.arjuna.StateManager

modifyingActions, objectModel, objectUid, usingActions

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	OptimisticLockManager()
protected	OptimisticLockManager(int ot)
protected	OptimisticLockManager(int ot, int om)
protected	OptimisticLockManager(Uid u)
protected	OptimisticLockManager(Uid u, int objectModel)

Method Summary

Modifier and Type	Method and Description
protected boolean	doRelease(Uid u, boolean all)
boolean	propagate(Uid from, Uid to) Change lock ownership as nested action commits.
int	setlock(Lock toSet, int retry, int sleepTime)
String	type() Overload StateManager.type()

Methods inherited from class com.arjuna.ats.txoj.LockManager

cleanUp, finalize, freeState, initialise, isAncestorOf, loadState, lockConflict, print, printState, releaseAll, releaselock, setlock, setlock, terminate, unloadState

Methods inherited from class com.arjuna.ats.arjuna.StateManager

activate, activate, cleanup, createLists, deactivate, deactivate, deactivate, destroy, disable, forgetAction, get_uid, getMutex, getObjectModel, getStore, getStoreRoot, loadObjectState, lockMutex, modified, objectType, packHeader, persist, rememberAction, restore_state, save_state, setStatus, setupStore, setupStore, setupStore, status, tryLockMutex, unlockMutex, unpackHeader

Methods inherited from class java.lang.Object

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

Constructor Detail

OptimisticLockManager

protected OptimisticLockManager()

OptimisticLockManager

protected OptimisticLockManager(int ot)

OptimisticLockManager

protected OptimisticLockManager(int ot,
                                int om)

OptimisticLockManager

protected OptimisticLockManager(Uid u)

OptimisticLockManager

protected OptimisticLockManager(Uid u,
                                int objectModel)

Method Detail

setlock

public int setlock(Lock toSet,
                   int retry,
                   int sleepTime)

Overrides:

setlock in class LockManager

doRelease

protected boolean doRelease(Uid u,
                            boolean all)

Overrides:

doRelease in class LockManager

propagate

public final boolean propagate(Uid from,
                               Uid to)

Description copied from class: LockManager

Change lock ownership as nested action commits. All locks owned by the committing action have their owners changed to be the parent of the committing action. BasicAction ensures this is only called at nested commit. This function works by copying the old LockList pointer and then creating a new held lock list. Locks are then moved from the old to the new, propagating en route.

Overrides:

propagate in class LockManager

type

public String type()

Overload StateManager.type()

Overrides:

type in class LockManager