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## org.springframework.scheduling.commonj
Class TimerManagerFactoryBean

    java.lang.Object
      org.springframework.jndi.JndiAccessor
          org.springframework.jndi.JndiLocatorSupport
              org.springframework.scheduling.commonj.TimerManagerAccessor
                  org.springframework.scheduling.commonj.TimerManagerFactoryBean

All Implemented Interfaces:
  DisposableBean, FactoryBean<commonj.timers.TimerManager>, InitializingBean, Lifecycle

    public class TimerManagerFactoryBean

extends TimerManagerAccessor
implements FactoryBean<commonj.timers.TimerManager>, InitializingBean, DisposableBean, Lifecycle

`FactoryBean` that retrieves a CommonJ `TimerManager` and exposes it for bean references.

This is the central convenience class for setting up a CommonJ TimerManager in a Spring context.

Allows for registration of ScheduledTimerListeners. This is the main purpose of this class; the TimerManager itself could also be fetched from JNDI via `JndiObjectFactoryBean`. In scenarios that just require static registration of tasks at startup, there is no need to access the TimerManager itself in application code.

Note that the TimerManager uses a TimerListener instance that is shared between repeated executions, in contrast to Quartz which instantiates a new Job for each execution.

Since:
  2.0
Author:
  Juergen Hoeller
See Also:
  `ScheduledTimerListener`, `TimerManager`, `TimerListener`

Field Summary

Fields inherited from class org.springframework.jndi.JndiLocatorSupport
`CONTAINER_PREFIX`

Fields inherited from class org.springframework.jndi.JndiAccessor
`logger`

Constructor Summary
`TimerManagerFactoryBean()`

Method Summary
`void` | `afterPropertiesSet()` Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
`void` | `destroy()` Cancels all statically registered Timers on shutdown, and stops the underlying TimerManager (if not shared).
`commonj.timers.TimerManager` | `getObject()` Return an instance (possibly shared or independent) of the object managed by this factory.
`Class<? extends commonj.timers.TimerManager>` | `getObjectType()` Return the type of object that this FactoryBean creates, or `null` if not known in advance.
`boolean` | `isSingleton()` Is the object managed by this factory a singleton? That is, will `FactoryBean.getObject()` always return the same object (a reference that can be cached)?
`void` | `setScheduledTimerListeners(ScheduledTimerListener[] scheduledTimerListeners)` Register a list of ScheduledTimerListener objects with the TimerManager that this FactoryBean creates.

Methods inherited from class org.springframework.scheduling.commonj.TimerManagerAccessor
`getTimerManager, isRunning, setShared, setTimerManager, setTimerManagerName, start, stop`

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`

Methods inherited from interface org.springframework.context.Lifecycle
`isRunning, start, stop`

Constructor Detail

### TimerManagerFactoryBean

    public TimerManagerFactoryBean()

Method Detail

### setScheduledTimerListeners

    public void setScheduledTimerListeners(ScheduledTimerListener[] scheduledTimerListeners)

  Register a list of ScheduledTimerListener objects with the TimerManager that this FactoryBean creates. Depending on each ScheduledTimerListener's settings, it will be registered via one of TimerManager's schedule methods.

  See Also:
    `TimerManager.schedule(commonj.timers.TimerListener, long)`, `TimerManager.schedule(commonj.timers.TimerListener, long, long)`, `TimerManager.scheduleAtFixedRate(commonj.timers.TimerListener, long, long)`

### afterPropertiesSet

    public void afterPropertiesSet()
                            throws NamingException

  Description copied from interface: `InitializingBean`
  Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

  This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

  Specified by:
    `afterPropertiesSet` in interface `InitializingBean`
  Overrides:
    `afterPropertiesSet` in class `TimerManagerAccessor`
  Throws:
    `NamingException`

### getObject

    public commonj.timers.TimerManager getObject()

  Description copied from interface: `FactoryBean`
  Return an instance (possibly shared or independent) of the object managed by this factory.

  As with a `BeanFactory`, this allows support for both the Singleton and Prototype design pattern.

  If this FactoryBean is not fully initialized yet at the time of the call (for example because it is involved in a circular reference), throw a corresponding `FactoryBeanNotInitializedException`.

  As of Spring 2.0, FactoryBeans are allowed to return `null` objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore. FactoryBean implementations are encouraged to throw FactoryBeanNotInitializedException themselves now, as appropriate.

  Specified by:
    `getObject` in interface `FactoryBean<commonj.timers.TimerManager>`
  Returns:
    an instance of the bean (can be `null`)
  See Also:
    `FactoryBeanNotInitializedException`

### getObjectType

    public Class<? extends commonj.timers.TimerManager> getObjectType()

  Description copied from interface: `FactoryBean`
  Return the type of object that this FactoryBean creates, or `null` if not known in advance.

  This allows one to check for specific types of beans without instantiating objects, for example on autowiring.

  In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.

  This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.

  NOTE: Autowiring will simply ignore FactoryBeans that return `null` here. Therefore it is highly recommended to implement this method properly, using the current state of the FactoryBean.

  Specified by:
    `getObjectType` in interface `FactoryBean<commonj.timers.TimerManager>`
  Returns:
    the type of object that this FactoryBean creates, or `null` if not known at the time of the call
  See Also:
    `ListableBeanFactory.getBeansOfType(java.lang.Class)`

### isSingleton

    public boolean isSingleton()

  Description copied from interface: `FactoryBean`
  Is the object managed by this factory a singleton? That is, will `FactoryBean.getObject()` always return the same object (a reference that can be cached)?

  NOTE: If a FactoryBean indicates to hold a singleton object, the object returned from `getObject()` might get cached by the owning BeanFactory. Hence, do not return `true` unless the FactoryBean always exposes the same reference.

  The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.

  NOTE: This method returning `false` does not necessarily indicate that returned objects are independent instances. An implementation of the extended `SmartFactoryBean` interface may explicitly indicate independent instances through its `SmartFactoryBean.isPrototype()` method. Plain `FactoryBean` implementations which do not implement this extended interface are simply assumed to always return independent instances if the `isSingleton()` implementation returns `false`.

  Specified by:
    `isSingleton` in interface `FactoryBean<commonj.timers.TimerManager>`
  Returns:
    whether the exposed object is a singleton
  See Also:
    `FactoryBean.getObject()`, `SmartFactoryBean.isPrototype()`

### destroy

    public void destroy()

  Cancels all statically registered Timers on shutdown, and stops the underlying TimerManager (if not shared).

  Specified by:
    `destroy` in interface `DisposableBean`
  Overrides:
    `destroy` in class `TimerManagerAccessor`
  See Also:
    `Timer.cancel()`, `TimerManager.stop()`

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