Spring Quartz scheduler

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 Spring is bundled with a scheduler that you can configure to be used in your application. This is typically useful for daemon processes which are supposed to kick off at a certain  defined interval. 

This can be very simply achieved using the SimpleTriggerFactoryBean.

To create this , you would need to have the following information handy:

1. targetObject - The name of the bean referred from Spring whose method is to be invoked.

2. targetMethod - Name of the method that is to be invoked.

3. Concurrent - True or false 

4. Start delay - The initial delay after daemon service start up in milliseconds.

5. Repeat interval - Time interval after which the method should be invoked repeatedly.

Here is a sample code you can use to create such a daemon service .


<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">

<property name="triggers">

<bean class="java.util.ArrayList">

<constructor-arg>

<list>

<bean class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">

<property name="jobDetail">

<bean class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">

<property name="targetObject" value="<name of class bean>">

<property name="targetMethod" value="<method to be invoked>"> 

<property name="concurrent" value="false">

</bean>

</property>

<property name="startDelay" value="<your value>" />

<property name="repeatInterval" value="<your value>" />

</bean>

</list>

</constructor-arg>

</bean>

</property>

<property name="autoStartup" value="true" />

</bean>

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