[Java] Quartz Quick Start (Scheduler)

Download and Installation of Quartz

To download Quartz, visit http://www.quartz-scheduler.org/downloads and download current stable release (2.0.2).

Once downloaded and unpacked the zip file, it's done.

Starting a Sample Application

1. New a Java project in Eclipse.
2. Add external JARs:
   
   • quartz-all-2.0.2.jar
     
   • slf4j-api-1.6.2.jar & slf4j-simple-1.6.2.jar. (slf4j-api needs to bind with one and only one of slf4j-nop, slf4j-simple, slf4j-log4j12 or slf4j-jdk14. Surely, if we bind with slf4j-log4j12, we need log4j JAR.)
     
3. Main.java
   

   package demo;
   
   public class Main {
       public static void main(String[] args) {
           QuartzTest.run();
       }
   }
   

4. QuartzTest.java
   

   package demo;
   
   import org.quartz.Scheduler;
   import org.quartz.SchedulerException;
   import org.quartz.impl.StdSchedulerFactory;
   
   public class QuartzTest {
       public static void run() {
           try {
               Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
               scheduler.start();
               scheduler.shutdown();
           } catch (SchedulerException e) {
               e.printStackTrace();
           }
       }
   }
   

5. Run
   

   32 [main] INFO org.quartz.impl.StdSchedulerFactory - Using default implementation for ThreadExecutor
   35 [main] INFO org.quartz.simpl.SimpleThreadPool - Job execution threads will use class loader of thread: main
   50 [main] INFO org.quartz.core.SchedulerSignalerImpl - Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl
   51 [main] INFO org.quartz.core.QuartzScheduler - Quartz Scheduler v.2.0.2 created.
   52 [main] INFO org.quartz.simpl.RAMJobStore - RAMJobStore initialized.
   53 [main] INFO org.quartz.core.QuartzScheduler - Scheduler meta-data: Quartz Scheduler (v2.0.2) 'DefaultQuartzScheduler' with instanceId 'NON_CLUSTERED'
     Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally.
     NOT STARTED.
     Currently in standby mode.
     Number of jobs executed: 0
     Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 10 threads.
     Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support persistence. and is not clustered.
   
   53 [main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler 'DefaultQuartzScheduler' initialized from default resource file in Quartz package: 'quartz.properties'
   53 [main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler version: 2.0.2
   54 [main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started.
   54 [main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutting down.
   54 [main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED paused.
   54 [main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutdown complete.
   

Enjoy!

Reference

• [1] Quartz: http://www.quartz-scheduler.org/overview/quick-start
• [2] Simple Logging Facade for Java (SLF4J): http://www.slf4j.org/download.html & http://www.slf4j.org/codes.html