Quartz: How to add new trigger to existing job?

Create a trigger with the job key (this job key refers to the job that you want to add trigger).

CronTriggerImpl cronTrigger2 = new CronTriggerImpl();
cronTrigger2.setStartTime(new Date(System.currentTimeMillis() + 1000));
cronTrigger2.setCronExpression("0/6 * * * * ?");
cronTrigger2.setName("SecondTrigger");
cronTrigger2.setDescription("Simple Trigger");
cronTrigger2.setKey(new TriggerKey("Trigger2"));
cronTrigger2.setJobKey(new JobKey(JOB_KEY));

Schedule the trigger.

scheduler.scheduleJob(cronTrigger2);

Find the below working application.

 

App.java

package com.sample.app;

import java.text.ParseException;
import java.util.Date;
import java.util.concurrent.TimeUnit;

import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.TriggerKey;
import org.quartz.impl.JobDetailImpl;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.triggers.CronTriggerImpl;

import com.sample.app.jobs.TimerJob;

public class App {
	private static final String JOB_KEY = "My_Timer_Job";

	public static void main(String args[]) throws ParseException, SchedulerException, InterruptedException {
		SchedulerFactory schedulerFactory = new StdSchedulerFactory();
		Scheduler scheduler = schedulerFactory.getScheduler();

		JobDetailImpl jobDetail = new JobDetailImpl();
		jobDetail.setName("First Job");
		jobDetail.setJobClass(TimerJob.class);
		jobDetail.setDescription("Simple Task Application");
		jobDetail.setRequestsRecovery(true);
		jobDetail.setDurability(true);
		jobDetail.setKey(new JobKey(JOB_KEY));

		CronTriggerImpl cronTrigger1 = new CronTriggerImpl();
		cronTrigger1.setStartTime(new Date(System.currentTimeMillis() + 1000));
		cronTrigger1.setCronExpression("0/3 * * * * ?");
		cronTrigger1.setName("FirstTrigger");
		cronTrigger1.setDescription("Simple Trigger");
		cronTrigger1.setKey(new TriggerKey("Trigger1"));

		scheduler.start();
		scheduler.scheduleJob(jobDetail, cronTrigger1);

		CronTriggerImpl cronTrigger2 = new CronTriggerImpl();
		cronTrigger2.setStartTime(new Date(System.currentTimeMillis() + 1000));
		cronTrigger2.setCronExpression("0/6 * * * * ?");
		cronTrigger2.setName("SecondTrigger");
		cronTrigger2.setDescription("Simple Trigger");
		cronTrigger2.setKey(new TriggerKey("Trigger2"));
		cronTrigger2.setJobKey(new JobKey(JOB_KEY));

		scheduler.scheduleJob(cronTrigger2);

		TimeUnit.SECONDS.sleep(12);

		System.out.println("\nUnscheduling the job of SecondTrigger");
		scheduler.unscheduleJob(new TriggerKey("Trigger2"));

	}
}

Output

Trigger1 -> Thu Mar 04 14:15:18 IST 2021
Trigger2 -> Thu Mar 04 14:15:18 IST 2021
Trigger1 -> Thu Mar 04 14:15:21 IST 2021
Trigger1 -> Thu Mar 04 14:15:24 IST 2021
Trigger2 -> Thu Mar 04 14:15:24 IST 2021
Trigger1 -> Thu Mar 04 14:15:27 IST 2021

Unscheduling the job of SecondTrigger
Trigger1 -> Thu Mar 04 14:15:30 IST 2021
Trigger1 -> Thu Mar 04 14:15:33 IST 2021
Trigger1 -> Thu Mar 04 14:15:36 IST 2021
Trigger1 -> Thu Mar 04 14:15:39 IST 2021
Trigger1 -> Thu Mar 04 14:15:42 IST 2021

 

 

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