FilterMaintenanceAccessory (hap-java 2.0.2 API)

All Superinterfaces:

HomekitAccessory
```
public interface FilterMaintenanceAccessory
extends HomekitAccessory
```
A Filter maintenance with mandatory characteristics.
The HomeKit app doesn't support a separate FilterMaintenance, but as a linked service to AirPurifier.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`CompletableFuture<FilterChangeIndicationEnum>`	`getFilterChangeIndication()`	The filter change indictaion.
`default Collection<Service>`	`getServices()`	The collection of Services this accessory supports.
`void`	`subscribeFilterChangeIndication(HomekitCharacteristicChangeCallback callback)`	Subscribes to changes in the filter change indication.
`void`	`unsubscribeFilterChangeIndication()`	Unsubscribes from changes in the filter change indication.

Methods inherited from interface io.github.hapjava.accessories.HomekitAccessory
getFirmwareRevision, getId, getManufacturer, getModel, getName, getPrimaryService, getSerialNumber, identify

- Method Detail
  - getFilterChangeIndication
```
CompletableFuture<FilterChangeIndicationEnum> getFilterChangeIndication()
```
    The filter change indictaion. It's either yes or no.
    
    Returns:
    
    FilterChangeIndicationEnum
  - subscribeFilterChangeIndication
```
void subscribeFilterChangeIndication(HomekitCharacteristicChangeCallback callback)
```
    Subscribes to changes in the filter change indication.
    
    Parameters:
    
    callback - the function to call when the state changes.
  - unsubscribeFilterChangeIndication
```
void unsubscribeFilterChangeIndication()
```
    Unsubscribes from changes in the filter change indication.
  - getServices
```
default Collection<Service> getServices()
```
    Description copied from interface: HomekitAccessory
    
    The collection of Services this accessory supports. Services are the primary way to interact with the accessory via HomeKit. Besides the Services offered here, the accessory will automatically include the required information service.
    This method will only be useful if you're implementing your own accessory type. For the standard accessories, use the default implementation provided by the interfaces in io.github.hapjava.accessories.
    
    Specified by:
    
    getServices in interface HomekitAccessory
    
    Returns:
    
    the collection of services.