com.arjuna.ats.internal.arjuna

Class LogWriteStateManager

java.lang.Object

com.arjuna.ats.arjuna.StateManager

com.arjuna.ats.internal.arjuna.LogWriteStateManager

public class LogWriteStateManager
extends StateManager

Needs further consideration and then completion.

Field Summary

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

modifyingActions, objectModel, objectUid, usingActions

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LogWriteStateManager()
protected	LogWriteStateManager(int ot)
protected	LogWriteStateManager(Uid objUid)
protected	LogWriteStateManager(Uid objUid, int ot)
protected	LogWriteStateManager(Uid objUid, int ot, int om)

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	modified() The object's state is about to be modified, and StateManager should take a snapshot of the state if the object is being used within a transaction.
boolean	writeOptimisation() This operation enables (or disables) the write-to-log optimisation.

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, objectType, packHeader, persist, print, rememberAction, restore_state, save_state, setStatus, setupStore, setupStore, setupStore, status, terminate, tryLockMutex, type, unlockMutex, unpackHeader

Methods inherited from class java.lang.Object

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

Constructor Detail

LogWriteStateManager

protected LogWriteStateManager(Uid objUid)

LogWriteStateManager

protected LogWriteStateManager(Uid objUid,
                    int ot)

LogWriteStateManager

protected LogWriteStateManager(Uid objUid,
                    int ot,
                    int om)

LogWriteStateManager

protected LogWriteStateManager()

LogWriteStateManager

protected LogWriteStateManager(int ot)

Method Detail

writeOptimisation

public boolean writeOptimisation()

This operation enables (or disables) the write-to-log optimisation. Since it is only called during the commit protocol, implementation classes can set the value dynamically through some application specific logic.

modified

protected boolean modified()

Description copied from class: StateManager

The object's state is about to be modified, and StateManager should take a snapshot of the state if the object is being used within a transaction.

Overrides:

modified in class StateManager

Returns:

true on success, false otherwise.