Problem timer

Please, help with timer.. I have the following code: @Command @NotifyChange("*") public void timer() throws JAXBException, ServiceException { getStatusSystemActive(); } @NotifyChange({ "logsList", "slotsList", "statusSystem", "groupAsignationList" }) public void getStatusSystemActive() throws JAXBException, ServiceException { statusSystem = statusSystemService.getStatusSystem(); errorXml = statusSystemService.isError(); getErrorMessageBoxGeneric(); if (statusSystem != null) { if (statusSystem.getStatus().equals("STOP")) { setStatusSystem(true); } else { setStatusSystem(false); } if (statusSystem.getEvento().equals("STOP")) { eventoSystem = true; } else { eventoSystem = false; } if (statusSystem.getModo().equals("IN")) { modoSystem = true; } else { modoSystem = false; } } } But I do not achieve this "label" is updated. For example: if it has to put START and is in STOP, if the timer is executed the value does not update me to START. Thank you.