code: public void start() {
  		if (LOG.isInfoEnabled()) {
  			LOG.info("Esper statement [" + epl + "] being started");
  		}
  
  		this.epStatement.start();
  
  		if (LOG.isInfoEnabled()) {
  			LOG.info("Esper statement [" + epl + "] started");
  		}
  	}
docs: Starts events being collated according to the statement's filter query