ContactSensorAccessory (hap-java 2.0.7-SNAPSHOT API)

All Superinterfaces:

HomekitAccessory
```
public interface ContactSensorAccessory
extends HomekitAccessory
```
A contact sensor that reports whether contact is detected or not. Typical contact sensors are window/door sensors. When contact is detected it means that the door/window is closed.

Author:

Gaston Dombiak

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`java.util.concurrent.CompletableFuture<ContactStateEnum>`	`getCurrentState()`	Retrieves the state of the contact.
`default java.util.Collection<Service>`	`getServices()`	The collection of Services this accessory supports.
`void`	`subscribeContactState(HomekitCharacteristicChangeCallback callback)`	Subscribes to changes in the contact state.
`void`	`unsubscribeContactState()`	Unsubscribes from changes in the contact state.

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

- Method Detail
  - getCurrentState
```
java.util.concurrent.CompletableFuture<ContactStateEnum> getCurrentState()
```
    Retrieves the state of the contact. This is whether the contact is detected or not. Detected contact means door/window is closed.
    
    Returns:
    
    a future that will contain the contact's state
  - subscribeContactState
```
void subscribeContactState(HomekitCharacteristicChangeCallback callback)
```
    Subscribes to changes in the contact state.
    
    Parameters:
    
    callback - the function to call when the state changes.
  - unsubscribeContactState
```
void unsubscribeContactState()
```
    Unsubscribes from changes in the contact state.
  - getServices
```
default java.util.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.