001package com.pi4j.io.gpio.event;
002
003/*
004 * #%L
005 * **********************************************************************
006 * ORGANIZATION  :  Pi4J
007 * PROJECT       :  Pi4J :: Java Library (Core)
008 * FILENAME      :  PinListener.java
009 *
010 * This file is part of the Pi4J project. More information about
011 * this project can be found here:  http://www.pi4j.com/
012 * **********************************************************************
013 * %%
014 * Copyright (C) 2012 - 2016 Pi4J
015 * %%
016 * This program is free software: you can redistribute it and/or modify
017 * it under the terms of the GNU Lesser General Public License as
018 * published by the Free Software Foundation, either version 3 of the
019 * License, or (at your option) any later version.
020 *
021 * This program is distributed in the hope that it will be useful,
022 * but WITHOUT ANY WARRANTY; without even the implied warranty of
023 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
024 * GNU General Lesser Public License for more details.
025 *
026 * You should have received a copy of the GNU General Lesser Public
027 * License along with this program.  If not, see
028 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
029 * #L%
030 */
031
032/**
033 * <p>Pin Listener Interface</p>
034 *
035 * <p>This interface implements the callback event handler for Pin state changes. </p>
036 *
037 * <p>
038 * Before using the Pi4J library, you need to ensure that the Java VM in configured with access to
039 * the following system libraries:
040 * <ul>
041 * <li>pi4j</li>
042 * <li>wiringPi</li>
043 * </ul>
044 * <blockquote> This library depends on the wiringPi native system library.</br> (developed by
045 * Gordon Henderson @ <a href="http://wiringpi.com/">http://wiringpi.com/</a>)
046 * </blockquote>
047 * </p>
048 *
049 * @see <a href="http://www.pi4j.com/">http://www.pi4j.com/</a>
050 * @author Robert Savage (<a
051 *         href="http://www.savagehomeautomation.com">http://www.savagehomeautomation.com</a>)
052 */
053public interface PinListener extends java.util.EventListener {
054
055    void handlePinEvent(PinEvent event);
056
057}