EventableCharacteristic.java

package com.beowulfe.hap.characteristics;

import com.beowulfe.hap.HomekitCharacteristicChangeCallback;

/**
 * A characteristic that can be listened to by the connected iOS device.
 *
 * @author Andy Lintner
 */
public interface EventableCharacteristic extends Characteristic {

	/**
	 * Begin listening to changes to this characteristic. When a change is made, call the provided function.
	 * @param callback a function to call when a change is made to the characteristic value.
	 */
	void subscribe(HomekitCharacteristicChangeCallback callback);

	/**
	 * Stop listening to changes to this characteristic.
	 */
	void unsubscribe();
}