quartz-scheduler | 易学教程

Quartz Scheduler in Web application

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问题 I am learning quartz and Have tried some samples which works in Console application. Now am trying in web aplications. Following is what I did. web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app> <servlet> <servlet-name>QuartzInitializer</servlet-name> <display-name> Quartz Initializer Servlet</display-name> <servlet-class>org.quartz.ee.servlet.QuartzInitializerServlet</servlet-class> <load-on-startup>1</load-on-startup> <init-param> <param-name>config-file</param-name> <param-value

Migrating from Spring 3 to Spring 4 - org.springframework.scheduling.quartz.CronTriggerBean

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问题 I'm trying to migrate from spring 3.0.5 to spring 4.1.X . Spring 3 has Class named as "org.springframework.scheduling.quartz.CronTriggerBean" But Spring 4 doesn't include this class name. [5/28/15 20:10:16:798 EDT] 00000092 ClassPathXmlA W org.springframework.context.support.AbstractApplicationContext __refresh Exception encountered during context initialization - cancelling refresh attempt org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework

quartz spring cron trigger fire immediately

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I have a spring application that uses quartz cron trigger. I have given the following for frequency 0 0/20 * * * ?.....once every 20 min. But i want the first one to run immediately. Right now, when I start the application, it runs after 20 min. I was hoping it would run asap and then after 20 min. Thanks in advance. You don't need CRON expression (and Quartz at all!) to run given code every 20 minutes. Just use fixed rate (Spring built-in): @Scheduled(fixedRate=20 * 60 * 1000) That's it! By default first invocation happens immediately, second after 20 minutes. Since Spring 3.2 you can even

Quartz.NET Rescheduling job with new trigger set

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问题 I have a Quartz job which is scheduled with a collection of triggers and it has 3 to 5 minutes of execution time. But at any moment in the future(it may be a week later or a couple of minutes later) I may need to reschedule it with a new trigger set. There will be some additions or deletions on trigger set. How can I reschedule the job with new trigger set? The trick here is, I want to be sure that no instance of the job is alive at that moment, so I can reschedule my job reliably. Thanks for

how to schedule a quartz job with scala

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问题 I am trying to get the most simple example of a quartz job running in Scala. configure() gets executed once when my module is loaded. lazy val quartz = StdSchedulerFactory.getDefaultScheduler override def configure() = { val Job = new Job { override def execute(jobExecutionContext: JobExecutionContext) = { println("Event") } } val job = JobBuilder.newJob(Job.getClass) .withIdentity("Job", "Group") .build val trigger: Trigger = TriggerBuilder .newTrigger .withIdentity("Trigger", "Group")

Scheduled with fixed delay in quartz scheduler?

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问题 I have developed a job which I want to run say after every 5 mins, but there may be certain circumstances where the job completion time may exceeds 5 mins. I am using quartz scheduler to schedule my job using a cron expression. Is there any way to tell quartz scheduler to hold the next run of job untill first one is completed? I am looking for something similar to - private static final ScheduledExecutorService executor = Executors.newScheduledThreadPool(1); executor.scheduledWithFixedDelay(.

Quartz jobs - disallow concurrent execution group-wide?

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问题 using Quartz, I'd like few jobs (say about 10) to execute as a chain - i.e. NOT concurrently. They should be executed after an "accounting day change" event occur but since they all access the same DB, I dont want them to start all together. I want them to be executed sequentially instead (order doesnt matter). I have an idea to put them into a group - say "account_day_change_jobs" and configure Quartz somehow to do the rest for me :-) Means - run sequentially all jobs from the group. I tried

Quartz Scheduler: How to dynamically read a quartz property from Java via API?

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问题 Quartz is usually configured via quartz.properties on the classpath. e.g.: org.quartz.scheduler.instanceName = BagginsScheduler org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool org.quartz.threadPool.threadCount=5 org.quartz.threadPool.threadPriority=1 From within the same application that will run the Quartz jobs, I'd like to read out the properties. Reading the scheduler name is easy: Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler(); String name = scheduler

How to dynamically add a Quartz Job in JBoss6

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问题 I'm using JBoss6 and want to dynamically create Quartz-Jobs. During the processing of the job the next start time will be defined (e.g. in 1, 5 or 10 hours). I didn't find any solutions for this, it's even hard to get access to the org.quartz.Scheduler (see QuartzScheduler injection in JBoss AS 6). The next problem is the creation of new Jobs, I followed the tutorial http://www.quartz-scheduler.org/docs/tutorial/TutorialLesson02.html: import static org.quartz.JobBuilder.*; import static org

What happens in Quartz.NET/Quartz when

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问题 ...when a job is still being executed when its next execution time occurs? For example, if I have a job that occurs every 30 seconds, and after the 30 seconds it is still operating, would the next instance come into play or would it wait? 回答1: The short answer is that a new job will be executed, unless you are inheriting from IStatefulJob, in which case only one job instance is allowed to run at a time. 回答2: As TskTsk answered, you can implement IStatefulJob insted of IJob but there is a