com.arjuna.ats.internal.arjuna

Class TxLogWritePersistenceRecord

java.lang.Object

com.arjuna.ats.arjuna.StateManager

com.arjuna.ats.arjuna.coordinator.AbstractRecord

com.arjuna.ats.internal.arjuna.abstractrecords.RecoveryRecord

com.arjuna.ats.internal.arjuna.abstractrecords.PersistenceRecord

com.arjuna.ats.internal.arjuna.TxLogWritePersistenceRecord

public class TxLogWritePersistenceRecord
extends PersistenceRecord

Needs further consideration and then completion.

Field Summary

Fields inherited from class com.arjuna.ats.internal.arjuna.abstractrecords.PersistenceRecord

classicPrepare, MAX_OBJECT_SIZE, shadowMade, targetParticipantStore, topLevelState

Fields inherited from class com.arjuna.ats.internal.arjuna.abstractrecords.RecoveryRecord

objectAddr, state

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

modifyingActions, objectModel, objectUid, usingActions

Constructor Summary

Constructors

Constructor and Description
TxLogWritePersistenceRecord()
TxLogWritePersistenceRecord(OutputObjectState state, ParticipantStore participantStore, StateManager sm)

Method Summary

Methods

Modifier and Type	Method and Description
int	topLevelCommit() commit the state saved during the prepare phase.
int	topLevelPrepare() topLevelPrepare attempts to save the object.
String	type() Re-implementation of abstract methods inherited from base class.
int	typeIs() Redefintions of abstract functions inherited from RecoveryRecord.

Methods inherited from class com.arjuna.ats.internal.arjuna.abstractrecords.PersistenceRecord

doSave, print, restore_state, save_state, shadowForced, topLevelAbort, topLevelCleanup

Methods inherited from class com.arjuna.ats.internal.arjuna.abstractrecords.RecoveryRecord

alter, finalize, forgetAction, merge, nestedAbort, nestedCommit, nestedPrepare, setValue, shouldAdd, shouldAlter, shouldMerge, shouldReplace, value

Methods inherited from class com.arjuna.ats.arjuna.coordinator.AbstractRecord

create, equals, forgetHeuristic, getNext, getPrevious, getTypeOfObject, greaterThan, lessThan, nestedCleanup, nestedOnePhaseCommit, order, propagateOnAbort, propagateOnCommit, replace, setNext, setPrevious, topLevelOnePhaseCommit

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, setStatus, setupStore, setupStore, setupStore, status, terminate, tryLockMutex, unlockMutex, unpackHeader

Methods inherited from class java.lang.Object

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

Constructor Detail

TxLogWritePersistenceRecord

public TxLogWritePersistenceRecord(OutputObjectState state,
                           ParticipantStore participantStore,
                           StateManager sm)

TxLogWritePersistenceRecord

public TxLogWritePersistenceRecord()

Method Detail

typeIs

public int typeIs()

Description copied from class: PersistenceRecord

Redefintions of abstract functions inherited from RecoveryRecord.

Overrides:

typeIs in class PersistenceRecord

Returns:

RecordType value.

topLevelCommit

public int topLevelCommit()

commit the state saved during the prepare phase.

Overrides:

topLevelCommit in class PersistenceRecord

Returns:

TwoPhaseOutcome to indicate success/failure.

See Also:

TwoPhaseOutcome

topLevelPrepare

public int topLevelPrepare()

topLevelPrepare attempts to save the object. It will either do this in the action intention list or directly in the object store by using the 'deactivate' function of the object depending upon the size of the state. To ensure that objects are correctly hidden while they are in an uncommitted state if we use the abbreviated protocol then we write an EMPTY object state as the shadow state - THIS MUST NOT BE COMMITTED. Instead we write_committed the one saved in the intention list. If the store cannot cope with being given an empty state we revert to the old protocol.

Overrides:

topLevelPrepare in class PersistenceRecord

Returns:

TwoPhaseOutcome to indicate success/failure.

See Also:

TwoPhaseOutcome

type

public String type()

Description copied from class: AbstractRecord

Re-implementation of abstract methods inherited from base class.

Overrides:

type in class PersistenceRecord