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When you want to run a task at a specific interval like a report every night at midnight, you can use Resin's <resin:ScheduledTask> bean. The scheduled task will take your custom Runnable bean, or a URL and execute it at the specific time.

The following configuration in the WEB-INF/resin-web.xml will instantiate your custom bean at midnight every night.

 <web-app xmlns="http://caucho.com/ns/resin"
         xmlns:resin="urn:java:com.caucho.resin"
         xmlns:mypkg="urn:java:com.mycom.mypkg">
 
   <resin:ScheduledTask>
     <cron>* * 0</cron>
     <task>
        <mypkg:MyBean/>
     </task>
   </resin:ScheduledTask>
 
 </web-app>

* The xmlns:mypkg defines the XML prefix for your bean's Java package
* The <resin:ScheduledTask> creates Resin's scheduled task bean
* The <cron> defines the schedule times, using Unix-style cron (sec, min, hour, day)
* The <task> is where your custom bean fits.

Your bean will be any Java class implementing Runnable:

 package com.mycom.mypkg;
 
 public class MyBean implements Runnable {
 
   public void run()
   {
     System.out.println("Running!");
   }
 
 }