001package com.pi4j.io.gpio.event; 002 003/* 004 * #%L 005 * ********************************************************************** 006 * ORGANIZATION : Pi4J 007 * PROJECT : Pi4J :: Java Library (Core) 008 * FILENAME : GpioPinDigitalStateChangeEvent.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 031import com.pi4j.io.gpio.GpioPin; 032import com.pi4j.io.gpio.PinState; 033 034/** 035 * GPIO digital state pin value change event. 036 * 037 * @author Robert Savage (<a 038 * href="http://www.savagehomeautomation.com">http://www.savagehomeautomation.com</a>) 039 */ 040public class GpioPinDigitalStateChangeEvent extends GpioPinEvent { 041 042 static final long serialVersionUID = 1L; 043 private final PinState state; 044 045 /** 046 * Default event constructor 047 * 048 * @param obj Ignore this parameter 049 * @param pin GPIO pin number (not header pin number; not wiringPi pin number) 050 * @param state New GPIO pin state. 051 */ 052 public GpioPinDigitalStateChangeEvent(Object obj, GpioPin pin, PinState state) { 053 super(obj, pin, PinEventType.DIGITAL_STATE_CHANGE); 054 this.state = state; 055 } 056 057 /** 058 * Get the new pin state raised in this event. 059 * 060 * @return GPIO pin state (HIGH, LOW) 061 */ 062 public PinState getState() { 063 return state; 064 } 065}