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 - 2013 Pi4J 015 * %% 016 * Licensed under the Apache License, Version 2.0 (the "License"); 017 * you may not use this file except in compliance with the License. 018 * You may obtain a copy of the License at 019 * 020 * http://www.apache.org/licenses/LICENSE-2.0 021 * 022 * Unless required by applicable law or agreed to in writing, software 023 * distributed under the License is distributed on an "AS IS" BASIS, 024 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 025 * See the License for the specific language governing permissions and 026 * limitations under the License. 027 * #L% 028 */ 029 030/** 031 * <p>Pin Listener Interface</p> 032 * 033 * <p>This interface implements the callback event handler for Pin state changes. </p> 034 * 035 * <p> 036 * Before using the Pi4J library, you need to ensure that the Java VM in configured with access to 037 * the following system libraries: 038 * <ul> 039 * <li>pi4j</li> 040 * <li>wiringPi</li> 041 * </ul> 042 * <blockquote> This library depends on the wiringPi native system library.</br> (developed by 043 * Gordon Henderson @ <a href="https://projects.drogon.net/">https://projects.drogon.net/</a>) 044 * </blockquote> 045 * </p> 046 * 047 * @see <a href="http://www.pi4j.com/">http://www.pi4j.com/</a> 048 * @author Robert Savage (<a 049 * href="http://www.savagehomeautomation.com">http://www.savagehomeautomation.com</a>) 050 */ 051public interface PinListener extends java.util.EventListener { 052 053 void handlePinEvent(PinEvent event); 054 055}