org.prevayler.implementation
Class PrevalentSystemGuard<P>

java.lang.Object
  org.prevayler.implementation.PrevalentSystemGuard<P>

All Implemented Interfaces:

TransactionSubscriber

public class PrevalentSystemGuard<P>
extends Object
implements TransactionSubscriber

Constructor Summary

PrevalentSystemGuard(P prevalentSystem, long systemVersion, Serializer journalSerializer)

Method Summary

PrevalentSystemGuard<P>	deepCopy(long systemVersion, Serializer snapshotSerializer)
<R> R	executeQuery(Query<? super P,R> sensitiveQuery, Clock clock)
P	prevalentSystem()
void	receive(TransactionTimestamp transactionTimestamp)
void	subscribeTo(TransactionPublisher publisher)
File	takeSnapshot(GenericSnapshotManager<P> snapshotManager)

Methods inherited from class java.lang.Object

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

Constructor Detail

PrevalentSystemGuard

public PrevalentSystemGuard(P prevalentSystem,
                            long systemVersion,
                            Serializer journalSerializer)

Method Detail

prevalentSystem

public P prevalentSystem()

subscribeTo

public void subscribeTo(TransactionPublisher publisher)
                 throws IOException,
                        ClassNotFoundException

Throws:

IOException

ClassNotFoundException

receive

public void receive(TransactionTimestamp transactionTimestamp)

Specified by:

receive in interface TransactionSubscriber

executeQuery

public <R> R executeQuery(Query<? super P,R> sensitiveQuery,
                          Clock clock)
               throws Exception

Throws:

Exception

takeSnapshot

public File takeSnapshot(GenericSnapshotManager<P> snapshotManager)
                  throws Exception

Throws:

Exception

deepCopy

public PrevalentSystemGuard<P> deepCopy(long systemVersion,
                                        Serializer snapshotSerializer)
                                 throws Exception

Throws:

Exception