org.jboss.as.ejb3.timerservice.persistence.database

Class DatabaseTimerPersistence

java.lang.Object

org.jboss.as.ejb3.timerservice.persistence.database.DatabaseTimerPersistence

All Implemented Interfaces:

TimerPersistence, org.jboss.msc.Service, org.jboss.msc.value.Value<DatabaseTimerPersistence>

public class DatabaseTimerPersistence
extends Object
implements TimerPersistence, org.jboss.msc.service.Service<DatabaseTimerPersistence>

Database timer persistence store.

Author:

Stuart Douglas, Wolf-Dieter Fink, Joerg Baesner

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.as.ejb3.timerservice.persistence.TimerPersistence

TimerPersistence.TimerChangeListener

Field Summary

Fields inherited from interface org.jboss.as.ejb3.timerservice.persistence.TimerPersistence

SERVICE_NAME

Fields inherited from interface org.jboss.msc.service.Service

NULL, NULL_VALUE

Constructor Summary

Constructors

Constructor and Description
DatabaseTimerPersistence(String database, String partition, String nodeName, int refreshInterval, boolean allowExecution)

Method Summary

Modifier and Type	Method and Description
void	addTimer(TimerImpl timerEntity) Called when a timer is being persisted
Object	deSerialize(String data)
org.jboss.msc.value.InjectedValue<org.jboss.as.naming.ManagedReferenceFactory>	getDataSourceInjectedValue()
org.jboss.msc.value.InjectedValue<org.jboss.modules.ModuleLoader>	getModuleLoader()
org.jboss.msc.value.InjectedValue<Timer>	getTimerInjectedValue()
DatabaseTimerPersistence	getValue()
List<TimerImpl>	loadActiveTimers(String timedObjectId, TimerServiceImpl timerService) Load all active timers for the given object.
void	persistTimer(TimerImpl timerEntity) Called when a timer is being persisted
Closeable	registerChangeListener(String timedObjectId, TimerPersistence.TimerChangeListener listener) Registers a listener to listed for new timers that are added to the database.
boolean	shouldRun(TimerImpl timer, TransactionManager ignored) Invoked before running a timer in order to determine if this node should run the timer.
void	start(org.jboss.msc.service.StartContext context)
void	stop(org.jboss.msc.service.StopContext context)
void	timerUndeployed(String timedObjectId) Signals that a timer is being undeployed, and all cached data relating to this object should be dropped to prevent a class loader leak

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.msc.Service

newInstance

Constructor Detail

DatabaseTimerPersistence

public DatabaseTimerPersistence(String database,
                                String partition,
                                String nodeName,
                                int refreshInterval,
                                boolean allowExecution)

Method Detail

start

public void start(org.jboss.msc.service.StartContext context)
           throws org.jboss.msc.service.StartException

Specified by:

start in interface org.jboss.msc.Service

Throws:

org.jboss.msc.service.StartException

stop

public void stop(org.jboss.msc.service.StopContext context)

Specified by:

stop in interface org.jboss.msc.Service

addTimer

public void addTimer(TimerImpl timerEntity)

Description copied from interface: TimerPersistence

Called when a timer is being persisted

Specified by:

addTimer in interface TimerPersistence

Parameters:

timerEntity - The timer

persistTimer

public void persistTimer(TimerImpl timerEntity)

Description copied from interface: TimerPersistence

Called when a timer is being persisted

Specified by:

persistTimer in interface TimerPersistence

Parameters:

timerEntity - The timer

shouldRun

public boolean shouldRun(TimerImpl timer,
                         @Deprecated
                         TransactionManager ignored)

Description copied from interface: TimerPersistence

Invoked before running a timer in order to determine if this node should run the timer.

Specified by:

shouldRun in interface TimerPersistence

Parameters:

timer - The timer

ignored - ignored

Returns:

true if the timer should be run

timerUndeployed

public void timerUndeployed(String timedObjectId)

Description copied from interface: TimerPersistence

Signals that a timer is being undeployed, and all cached data relating to this object should be dropped to prevent a class loader leak

Specified by:

timerUndeployed in interface TimerPersistence

loadActiveTimers

public List<TimerImpl> loadActiveTimers(String timedObjectId,
                                        TimerServiceImpl timerService)

Description copied from interface: TimerPersistence

Load all active timers for the given object. If the object is an entity bean timers for all beans will be returned.

Specified by:

loadActiveTimers in interface TimerPersistence

Parameters:

timedObjectId - The timed object id to load timers for

Returns:

A list of all active timers

registerChangeListener

public Closeable registerChangeListener(String timedObjectId,
                                        TimerPersistence.TimerChangeListener listener)

Description copied from interface: TimerPersistence

Registers a listener to listed for new timers that are added to the database.

Specified by:

registerChangeListener in interface TimerPersistence

Parameters:

timedObjectId - The timed object

listener - The listener

Returns:

A Closable that can be used to unregister the listener

getValue

public DatabaseTimerPersistence getValue()
                                  throws IllegalStateException,
                                         IllegalArgumentException

Specified by:

getValue in interface org.jboss.msc.value.Value<DatabaseTimerPersistence>

Throws:

IllegalStateException

IllegalArgumentException

deSerialize

public Object deSerialize(String data)
                   throws SQLException

Throws:

SQLException

getDataSourceInjectedValue

public org.jboss.msc.value.InjectedValue<org.jboss.as.naming.ManagedReferenceFactory> getDataSourceInjectedValue()

getModuleLoader

public org.jboss.msc.value.InjectedValue<org.jboss.modules.ModuleLoader> getModuleLoader()

getTimerInjectedValue

public org.jboss.msc.value.InjectedValue<Timer> getTimerInjectedValue()