code: public boolean pauseQuartzJob(String jobName, String jobGroupName) {
          try {
              this.scheduler.pauseJob(new JobKey(jobName, jobGroupName));
              return true;
          } catch (SchedulerException e) {
              logger.error("error pausing job: " + jobName + " in group: " + jobGroupName, e);
          }
          return false;
      }
docs: Pause the job with given name in given group
  
  @param jobName
  the job name
  
  @param jobGroupName
  the job group name
  
  @return <code>true</code> if job was paused, <code>false</code> otherwise
  
  @see QuartzService#pauseQuartzJob(String, String)