org.springframework.scheduling.commonj

Class TimerManagerAccessor

java.lang.Object

org.springframework.jndi.JndiAccessor

org.springframework.jndi.JndiLocatorSupport

org.springframework.scheduling.commonj.TimerManagerAccessor

All Implemented Interfaces:

DisposableBean, InitializingBean, Lifecycle

Direct Known Subclasses:

TimerManagerFactoryBean, TimerManagerTaskScheduler

public abstract class TimerManagerAccessor
extends JndiLocatorSupport
implements InitializingBean, DisposableBean, Lifecycle

Base class for classes that are accessing a CommonJ TimerManager Defines common configuration settings and common lifecycle handling.

Since:

3.0

Author:

Juergen Hoeller

See Also:

TimerManager

Field Summary

Fields inherited from class org.springframework.jndi.JndiLocatorSupport

CONTAINER_PREFIX

Fields inherited from class org.springframework.jndi.JndiAccessor

logger

Constructor Summary

Constructors

Constructor and Description
TimerManagerAccessor()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.
void	destroy() Stops the underlying TimerManager (if not shared).
protected TimerManager	getTimerManager() Return the configured TimerManager, if any.
boolean	isRunning() Considers the underlying TimerManager as running if it is neither suspending nor stopping.
protected TimerManager	obtainTimerManager() Obtain the TimerManager for actual use.
void	setShared(boolean shared) Specify whether the TimerManager obtained by this FactoryBean is a shared instance ("true") or an independent instance ("false").
void	setTimerManager(TimerManager timerManager) Specify the CommonJ TimerManager to delegate to.
void	setTimerManagerName(String timerManagerName) Set the JNDI name of the CommonJ TimerManager.
void	start() Resumes the underlying TimerManager (if not shared).
void	stop() Suspends the underlying TimerManager (if not shared).

Methods inherited from class org.springframework.jndi.JndiLocatorSupport

convertJndiName, isResourceRef, lookup, lookup, setResourceRef

Methods inherited from class org.springframework.jndi.JndiAccessor

getJndiEnvironment, getJndiTemplate, setJndiEnvironment, setJndiTemplate

Methods inherited from class java.lang.Object

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

Constructor Detail

TimerManagerAccessor

public TimerManagerAccessor()

Method Detail

setTimerManager

public void setTimerManager(TimerManager timerManager)

Specify the CommonJ TimerManager to delegate to.

Note that the given TimerManager's lifecycle will be managed by this FactoryBean.

Alternatively (and typically), you can specify the JNDI name of the target TimerManager.

See Also:

setTimerManagerName(java.lang.String)

setTimerManagerName

public void setTimerManagerName(String timerManagerName)

Set the JNDI name of the CommonJ TimerManager.

This can either be a fully qualified JNDI name, or the JNDI name relative to the current environment naming context if "resourceRef" is set to "true".

See Also:

setTimerManager(commonj.timers.TimerManager), JndiLocatorSupport.setResourceRef(boolean)

setShared

public void setShared(boolean shared)

Specify whether the TimerManager obtained by this FactoryBean is a shared instance ("true") or an independent instance ("false"). The lifecycle of the former is supposed to be managed by the application server, while the lifecycle of the latter is up to the application.

Default is "false", i.e. managing an independent TimerManager instance. This is what the CommonJ specification suggests that application servers are supposed to offer via JNDI lookups, typically declared as a resource-ref of type commonj.timers.TimerManager in web.xml, with res-sharing-scope set to 'Unshareable'.

Switch this flag to "true" if you are obtaining a shared TimerManager, typically through specifying the JNDI location of a TimerManager that has been explicitly declared as 'Shareable'. Note that WebLogic's cluster-aware Job Scheduler is a shared TimerManager too.

The sole difference between this FactoryBean being in shared or non-shared mode is that it will only attempt to suspend / resume / stop the underlying TimerManager in case of an independent (non-shared) instance. This only affects the Lifecycle support as well as application context shutdown.

See Also:

stop(), start(), destroy(), TimerManager

afterPropertiesSet

public void afterPropertiesSet()
                        throws NamingException

Description copied from interface: InitializingBean

Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.

This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

NamingException

getTimerManager

@Nullable
protected final TimerManager getTimerManager()

Return the configured TimerManager, if any.

Returns:

the TimerManager, or null if not available

obtainTimerManager

protected TimerManager obtainTimerManager()

Obtain the TimerManager for actual use.

Returns:

the TimerManager (never null)

Throws:

IllegalStateException - in case of no TimerManager set

Since:

5.0

start

public void start()

Resumes the underlying TimerManager (if not shared).

Specified by:

start in interface Lifecycle

See Also:

TimerManager.resume()

stop

public void stop()

Suspends the underlying TimerManager (if not shared).

Specified by:

stop in interface Lifecycle

See Also:

TimerManager.suspend()

isRunning

public boolean isRunning()

Considers the underlying TimerManager as running if it is neither suspending nor stopping.

Specified by:

isRunning in interface Lifecycle

Returns:

whether the component is currently running

See Also:

TimerManager.isSuspending(), TimerManager.isStopping()

destroy

public void destroy()

Stops the underlying TimerManager (if not shared).

Specified by:

destroy in interface DisposableBean

See Also:

TimerManager.stop()