public void addEggOfferings(){
		try {
			databaseCon dbCon = new databaseCon();
			//co offering
			dbCon.addOffering(aqeSensors.getCoOffering(),"Concentration of carbon monoxide in the air");
			//humidity offering
			dbCon.addOffering(aqeSensors.getHumidityOffering(), "Relative air humidity");
			//NO2 offering
			dbCon.addOffering(aqeSensors.getNo2Offering(), "Concentration of nitrogen dioxide in the air");
			//temperature offering
			dbCon.addOffering(aqeSensors.getTemperatureOffering(), "Air temperature in °C");
			//O3 offering
			dbCon.addOffering(aqeSensors.getO3Offering(), "Concentration of ozone dioxide in the air");
			
			dbCon.disconnect();
		} catch (FileNotFoundException e) {
			logger.warn("Config file for database connection not found",e);
			e.printStackTrace();
		} catch (IOException e) {
			logger.warn(e);
			e.printStackTrace();
		}
	}