org.springframework.scheduling.quartz

Class CronTriggerFactoryBean

java.lang.Object

org.springframework.scheduling.quartz.CronTriggerFactoryBean

All Implemented Interfaces:

Aware, BeanNameAware, FactoryBean<CronTrigger>, InitializingBean

public class CronTriggerFactoryBean
extends Object
implements FactoryBean<CronTrigger>, BeanNameAware, InitializingBean

A Spring FactoryBean for creating a Quartz CronTrigger instance, supporting bean-style usage for trigger configuration.

CronTrigger(Impl) itself is already a JavaBean but lacks sensible defaults. This class uses the Spring bean name as job name, the Quartz default group ("DEFAULT") as job group, the current time as start time, and indefinite repetition, if not specified.

This class will also register the trigger with the job name and group of a given JobDetail. This allows SchedulerFactoryBean to automatically register a trigger for the corresponding JobDetail, instead of registering the JobDetail separately.

NOTE: This FactoryBean works against both Quartz 1.x and Quartz 2.x, in contrast to the older CronTriggerBean class.

Since:

3.1

Author:

Juergen Hoeller

See Also:

setName(java.lang.String), setGroup(java.lang.String), setStartDelay(long), setJobDetail(org.quartz.JobDetail), SchedulerAccessor.setTriggers(org.quartz.Trigger[]), SchedulerAccessor.setJobDetails(org.quartz.JobDetail[]), SimpleTriggerBean

Constructor Summary

Constructors

Constructor and Description
CronTriggerFactoryBean()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
JobDataMap	getJobDataMap() Return the trigger's JobDataMap.
CronTrigger	getObject() Return an instance (possibly shared or independent) of the object managed by this factory.
Class<?>	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	setBeanName(String beanName) Set the name of the bean in the bean factory that created this bean.
void	setCronExpression(String cronExpression) Specify the cron expression for this trigger.
void	setGroup(String group) Specify the trigger's group.
void	setJobDataAsMap(Map<String,?> jobDataAsMap) Register objects in the JobDataMap via a given Map.
void	setJobDataMap(JobDataMap jobDataMap) Set the trigger's JobDataMap.
void	setJobDetail(JobDetail jobDetail) Set the JobDetail that this trigger should be associated with.
void	setMisfireInstruction(int misfireInstruction) Specify a misfire instruction for this trigger.
void	setMisfireInstructionName(String constantName) Set the misfire instruction via the name of the corresponding constant in the CronTrigger class.
void	setName(String name) Specify the trigger's name.
void	setPriority(int priority) Specify the priority of this trigger.
void	setStartDelay(long startDelay) Set the start delay in milliseconds.
void	setTimeZone(TimeZone timeZone) Specify the time zone for this trigger's cron expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

CronTriggerFactoryBean

public CronTriggerFactoryBean()

Method Detail

setName

public void setName(String name)

Specify the trigger's name.

setGroup

public void setGroup(String group)

Specify the trigger's group.

setJobDetail

public void setJobDetail(JobDetail jobDetail)

Set the JobDetail that this trigger should be associated with.

setJobDataMap

public void setJobDataMap(JobDataMap jobDataMap)

Set the trigger's JobDataMap.

See Also:

setJobDataAsMap(java.util.Map<java.lang.String, ?>)

getJobDataMap

public JobDataMap getJobDataMap()

Return the trigger's JobDataMap.

setJobDataAsMap

public void setJobDataAsMap(Map<String,?> jobDataAsMap)

Register objects in the JobDataMap via a given Map.

These objects will be available to this Trigger only, in contrast to objects in the JobDetail's data map.

Parameters:

jobDataAsMap - Map with String keys and any objects as values (for example Spring-managed beans)

See Also:

JobDetailBean.setJobDataAsMap(java.util.Map)

setStartDelay

public void setStartDelay(long startDelay)

Set the start delay in milliseconds.

The start delay is added to the current system time (when the bean starts) to control the start time of the trigger.

setCronExpression

public void setCronExpression(String cronExpression)

Specify the cron expression for this trigger.

setTimeZone

public void setTimeZone(TimeZone timeZone)

Specify the time zone for this trigger's cron expression.

setPriority

public void setPriority(int priority)

Specify the priority of this trigger.

setMisfireInstruction

public void setMisfireInstruction(int misfireInstruction)

Specify a misfire instruction for this trigger.

setMisfireInstructionName

public void setMisfireInstructionName(String constantName)

Set the misfire instruction via the name of the corresponding constant in the CronTrigger class. Default is MISFIRE_INSTRUCTION_SMART_POLICY.

See Also:

CronTrigger.MISFIRE_INSTRUCTION_FIRE_ONCE_NOW, CronTrigger.MISFIRE_INSTRUCTION_DO_NOTHING, Trigger.MISFIRE_INSTRUCTION_SMART_POLICY

setBeanName

public void setBeanName(String beanName)

Description copied from interface: BeanNameAware

Set the name of the bean in the bean factory that created this bean.

Invoked after population of normal bean properties but before an init callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

Specified by:

setBeanName in interface BeanNameAware

Parameters:

beanName - the name of the bean in the factory. Note that this name is the actual bean name used in the factory, which may differ from the originally specified name: in particular for inner bean names, the actual bean name might have been made unique through appending "#..." suffixes. Use the BeanFactoryUtils.originalBeanName(String) method to extract the original bean name (without suffix), if desired.

afterPropertiesSet

public void afterPropertiesSet()

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

getObject

public CronTrigger 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<CronTrigger>

Returns:

an instance of the bean (can be null)

See Also:

FactoryBeanNotInitializedException

getObjectType

public Class<?> 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<CronTrigger>

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<T>)

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<CronTrigger>

Returns:

whether the exposed object is a singleton

See Also:

FactoryBean.getObject(), SmartFactoryBean.isPrototype()