QuartzJobBean (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.scheduling.quartz
Class QuartzJobBean

java.lang.Object
  org.springframework.scheduling.quartz.QuartzJobBean

All Implemented Interfaces:: Job

Direct Known Subclasses:: MethodInvokingJobDetailFactoryBean.MethodInvokingJob

public abstract class QuartzJobBean
extends Object
implements Job
extends Object
implements Job

Simple implementation of the Quartz Job interface, applying the passed-in JobDataMap and also the SchedulerContext as bean property values. This is appropriate because a new Job instance will be created for each execution. JobDataMap entries will override SchedulerContext entries with the same keys.

For example, let's assume that the JobDataMap contains a key "myParam" with value "5": The Job implementation can then expose a bean property "myParam" of type int to receive such a value, i.e. a method "setMyParam(int)". This will also work for complex types like business objects etc.

Note: The QuartzJobBean class itself only implements the standard Quartz Job interface. Let your subclass explicitly implement the Quartz StatefulJob interface to mark your concrete job bean as stateful.

This version of QuartzJobBean requires Quartz 1.5 or higher, due to the support for trigger-specific job data.

Note that as of Spring 2.0 and Quartz 1.5, the preferred way to apply dependency injection to Job instances is via a JobFactory: that is, to specify SpringBeanJobFactory as Quartz JobFactory (typically via SchedulerFactoryBean.setJobFactory(org.quartz.spi.JobFactory) SchedulerFactoryBean's "jobFactory" property}). This allows to implement dependency-injected Quartz Jobs without a dependency on Spring base classes.

Since:: 18.02.2004
Author:: Juergen Hoeller
See Also:: JobExecutionContext.getMergedJobDataMap(), Scheduler.getContext(), JobDetailBean.setJobDataAsMap(java.util.Map), SimpleTriggerBean.setJobDataAsMap(java.util.Map), CronTriggerBean.setJobDataAsMap(java.util.Map), SchedulerFactoryBean.setSchedulerContextAsMap(java.util.Map), SpringBeanJobFactory, SchedulerFactoryBean.setJobFactory(org.quartz.spi.JobFactory)

Constructor Summary

QuartzJobBean()


Method Summary

void execute(JobExecutionContext context)
          This implementation applies the passed-in job data map as bean property values, and delegates to executeInternal afterwards.

protected abstract void executeInternal(JobExecutionContext context)
          Execute the actual job.

Methods inherited from class java.lang.Object

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

Constructor Summary
`QuartzJobBean()`

Method Summary
`void`	`execute(JobExecutionContext context)` This implementation applies the passed-in job data map as bean property values, and delegates to `executeInternal` afterwards.
`protected abstract void`	`executeInternal(JobExecutionContext context)` Execute the actual job.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

QuartzJobBean

public QuartzJobBean()

Method Detail

execute

public final void execute(JobExecutionContext context)
                   throws JobExecutionException

This implementation applies the passed-in job data map as bean property values, and delegates to executeInternal afterwards.

Specified by:: execute in interface Job

Throws:: JobExecutionException
See Also:: executeInternal(org.quartz.JobExecutionContext)

executeInternal

protected abstract void executeInternal(JobExecutionContext context)
                                 throws JobExecutionException

Execute the actual job. The job data map will already have been applied as bean property values by execute. The contract is exactly the same as for the standard Quartz execute method.