code: @Override
  	public boolean removeTrigger(String groupName, String jobName, final String triggerGroup, final String triggerName) throws SchedulerException {
  		if (!config.isRemoveTriggerAllowed()) {
  			LOGGER.warn("not allowed to remove any trigger");
  			return false;
  		}
  		Trigger triggerFound = findTrigger(groupName, jobName, triggerGroup, triggerName);
  		if (null != triggerFound) {
  			return scheduler.unscheduleJob(triggerFound.getKey());
  		}
  		return false;
  	}
docs: /* (non-Javadoc)
  @see de.chandre.admintool.quartz.AdminToolQuartzService#removeTrigger(java.lang.String, java.lang.String, java.lang.String, java.lang.String)