Scheduled with fixed delay in quartz scheduler?

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(..);

回答1:

Use a StatefulJob. From the docs:

stateful jobs are not allowed to execute concurrently, which means new triggers that occur before the completion of the execute(xx) method will be delayed.

回答2:

http://yongjun-jiao.blogspot.com/2010/08/quartz-crontrigger-scdeuling-policy.html. If you use spring scheduling concepts http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/dynamic-language.html

来源：https://stackoverflow.com/questions/5063482/scheduled-with-fixed-delay-in-quartz-scheduler