org.apache.jena.dboe.transaction.txn

Class TransactionalComponentByLock

java.lang.Object

org.apache.jena.dboe.transaction.txn.TransactionalComponentLifecycle<Object>

org.apache.jena.dboe.transaction.txn.TransactionalComponentByLock

All Implemented Interfaces:

TransactionalComponent

public class TransactionalComponentByLock
extends TransactionalComponentLifecycle<Object>

Implementation of the component interface for TransactionalComponent. Useful for in-memory transactions that do not provide durability or abort (undo). When retro fitting to other systems, that may be the best that can be done.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.jena.dboe.transaction.txn.TransactionalComponentLifecycle

TransactionalComponentLifecycle.ComponentState<X>

Method Summary

Modifier and Type	Method and Description
void	cleanStart() Indicate that no recovery is being done (the journal thinks everything was completed last time)
void	finishRecovery() End of the recovery phase
void	recover(ByteBuffer ref) Notification that ref was really committed and is being recovered.
void	startRecovery()

Methods inherited from class org.apache.jena.dboe.transaction.txn.TransactionalComponentLifecycle

abort, attach, begin, commit, commitEnd, commitPrepare, complete, detach, getComponentId, getComponentState, promote, setComponentState, shutdown

Methods inherited from class java.lang.Object

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

Method Detail

startRecovery

public void startRecovery()

Specified by:

startRecovery in interface TransactionalComponent

Specified by:

startRecovery in class TransactionalComponentLifecycle<Object>

recover

public void recover(ByteBuffer ref)

Description copied from interface: TransactionalComponent

Notification that ref was really committed and is being recovered.

Specified by:

recover in interface TransactionalComponent

Specified by:

recover in class TransactionalComponentLifecycle<Object>

Parameters:

ref - Same bytes as were written during prepare originally.

finishRecovery

public void finishRecovery()

Description copied from interface: TransactionalComponent

End of the recovery phase

Specified by:

finishRecovery in interface TransactionalComponent

Specified by:

finishRecovery in class TransactionalComponentLifecycle<Object>

cleanStart

public void cleanStart()

Description copied from interface: TransactionalComponent

Indicate that no recovery is being done (the journal thinks everything was completed last time)