public void setAppliance(BaseAppliance appliance)
 {
     this.appliance = appliance;
 }
 public SenseApplianceData(String applianceId, BaseAppliance appliance)
     : base(applianceId, appliance)
 {
 }
 public BaseApplianceData(String applianceId, BaseAppliance appliance)
 {
     this.applianceId = applianceId;
     this.appliance   = appliance;
 }