public boolean isConnectable(){
  for (  DeviceService service : services.values()) {
    if (service.isConnectable())     return true;
  }
  return false;
}

public boolean isConnectable ( ) { for ( DeviceService service : services . values ( ) ) { if ( service . isConnectable ( ) ) return true ; } return false ; }
whether the device has any deviceservices that require an active connection ( websocket , http registration , etc )
