Quartz stop a job

Quartz did a good job on implementing this concept. It was very easy to add this feature by implementing a base class that abstract the details of interrupt and have every job extend this class. If you can rely on thread.interrupt() then its the best way to interrupt a job that is blocked on some I/O or native call. However if its a normal job then a simple boolean flag would do the work.

You would need to use scheduler.interrupt(jobName, groupName); to interrupt a running Quartz job.

public abstract class BaseInterruptableJob implements InterruptableJob {
 private static final AppLogger logger = AppLogger.getLogger(BaseInterruptableJob.class); 
 private Thread thread;
 @Override
 public void interrupt() throws UnableToInterruptJobException {
  logger.info("Interrupting job " + getClass().getName());
  if (thread != null) {
   thread.interrupt();
  }
 }

 @Override
 final public void execute(JobExecutionContext context) throws JobExecutionException {
  try {
   thread = Thread.currentThread();
   interruptableExecute(context);
  } finally {
   thread = null;
  }
 }
 
 protected abstract void interruptableExecute(JobExecutionContext context) throws JobExecutionException;

}