Java Example: Dynamic Job Scheduling with Quartz

Question

I want to expose an user interface to define Quartz JOBs dynamically. Where user should have facility to define JOBs properties like JOB name, cron expression or time interv

Answer 1

package com.myproject;

import java.text.ParseException;

import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.impl.triggers.CronTriggerImpl;
import org.springframework.stereotype.Component;

@Component
public class QuartzSchedulerExample {
    public QuartzSchedulerExample() {
        SchedulerFactory schedFact = new org.quartz.impl.StdSchedulerFactory();
        Scheduler scheduler;
        try {
            scheduler = schedFact.getScheduler();
            JobDetail details = JobBuilder.newJob(MyMailBean.class)
                    .withDescription("something")
                    .withIdentity("mejob","myGroup")
                    .storeDurably(true).build();

            CronTriggerImpl trigger = new CronTriggerImpl();
            trigger.setName("T1");

            try {
                trigger.setCronExpression("0 0 0 * * ? *");
            } catch (ParseException e) {
                e.printStackTrace();
            }
            trigger.setDescription("desc");
            scheduler.scheduleJob(details,trigger);
            scheduler.start();
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }
}

The job will run every day 00:00:00 (hour:minute:second)