java quartz scheduler fire a new job immediately

Question

Is it possible to crate a job that will trigger immediately ? when i want the job to be triggres now i builed a cron expression string with the current date and time - i think it's too complicated, is there another way to trigger the job immediately ?

Thank's In Advance.

Answer 1

Yeah, use the following Trigger to immediately fire your job instead of waiting upon the Cron Expressions.

    String jobName = ""; // Your Job Name     String groupName = ""; // Your Job Group     Trigger trigger = TriggerBuilder.newTrigger()                 .withIdentity(jobName, groupName)                 .startNow()                 .build(); 

Answer 2

All the Jobs registered in the Quartz Scheduler are uniquely identified by the JobKey which is composed of a name and group . You can fire the job which has a given JobKey immediately by calling triggerJob(JobKey jobKey) of your Scheduler instance.

//Create a new Job  JobKey jobKey = JobKey.jobKey("myNewJob", "myJobGroup"); JobDetail job = JobBuilder.newJob(MyJob.class).withIdentity(jobKey).storeDurably().build();  //Register this job to the scheduler scheduler.addJob(job, true);  //Immediately fire the Job MyJob.class scheduler.triggerJob(jobKey); 

Note :

• scheduler is the Scheduler instance used throughout your application . Its start() method should be already called after it is created.

• The job is the durable job which cannot attach any triggers or cron to it .It can only be fired programmatically by calling triggerJob(JobKey jobKey).