DayAndPosition.java |
1 /** 2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved. 3 * 4 * The contents of this file are subject to the terms of the Liferay Enterprise 5 * Subscription License ("License"). You may not use this file except in 6 * compliance with the License. You can obtain a copy of the License by 7 * contacting Liferay, Inc. See the License for the specific language governing 8 * permissions and limitations under the License, including but not limited to 9 * distribution rights of the Software. 10 * 11 * 12 * 13 */ 14 15 /* 16 * Copyright (c) 2000, Columbia University. All rights reserved. 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions are met: 20 * 21 * 1. Redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer. 23 * 24 * 2. Redistributions in binary form must reproduce the above copyright 25 * notice, this list of conditions and the following disclaimer in the 26 * documentation and/or other materials provided with the distribution. 27 * 28 * 3. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS 33 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 34 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 35 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR 36 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 37 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 38 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 39 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 40 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 41 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 42 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 43 */ 44 45 package com.liferay.portal.kernel.cal; 46 47 import com.liferay.portal.kernel.util.HashCode; 48 import com.liferay.portal.kernel.util.HashCodeFactoryUtil; 49 import com.liferay.portal.kernel.util.StringBundler; 50 51 import java.io.Serializable; 52 53 import java.util.Calendar; 54 55 /** 56 * <a href="DayAndPosition.java.html"><b><i>View Source</i></b></a> 57 * 58 * @author Jonathan Lennox 59 */ 60 public class DayAndPosition implements Cloneable, Serializable { 61 62 /** 63 * Field day 64 */ 65 private int day; 66 67 /** 68 * Field position 69 */ 70 private int position; 71 72 /** 73 * Field NO_WEEKDAY 74 */ 75 public static final int NO_WEEKDAY = 0; 76 77 /** 78 * Constructor DayAndPosition 79 */ 80 public DayAndPosition() { 81 day = NO_WEEKDAY; 82 position = 0; 83 } 84 85 /** 86 * Constructor DayAndPosition 87 */ 88 public DayAndPosition(int d, int p) { 89 if (!isValidDayOfWeek(d)) { 90 throw new IllegalArgumentException("Invalid day of week"); 91 } 92 93 if (!isValidDayPosition(p)) { 94 throw new IllegalArgumentException("Invalid day position"); 95 } 96 97 day = d; 98 position = p; 99 } 100 101 /** 102 * Method getDayOfWeek 103 * 104 * @return int 105 */ 106 public int getDayOfWeek() { 107 return day; 108 } 109 110 /** 111 * Method setDayOfWeek 112 */ 113 public void setDayOfWeek(int d) { 114 if (!isValidDayOfWeek(d)) { 115 throw new IllegalArgumentException("Invalid day of week"); 116 } 117 118 day = d; 119 } 120 121 /** 122 * Method getDayPosition 123 * 124 * @return int 125 */ 126 public int getDayPosition() { 127 return position; 128 } 129 130 /** 131 * Method setDayPosition 132 */ 133 public void setDayPosition(int p) { 134 if (!isValidDayPosition(p)) { 135 throw new IllegalArgumentException(); 136 } 137 138 position = p; 139 } 140 141 /** 142 * Method equals 143 * 144 * @return boolean 145 */ 146 public boolean equals(Object obj) { 147 if (obj == null) { 148 return false; 149 } 150 151 if (this == obj) { 152 return true; 153 } 154 155 if (!(obj instanceof DayAndPosition)) { 156 return false; 157 } 158 159 DayAndPosition that = (DayAndPosition)obj; 160 161 return (getDayOfWeek() == that.getDayOfWeek()) 162 && (getDayPosition() == that.getDayPosition()); 163 } 164 165 public int hashCode() { 166 HashCode hashCode = HashCodeFactoryUtil.getHashCode(); 167 168 hashCode.append(day); 169 hashCode.append(position); 170 171 return hashCode.toHashCode(); 172 } 173 174 /** 175 * Method isValidDayOfWeek 176 * 177 * @return boolean 178 */ 179 public static boolean isValidDayOfWeek(int d) { 180 switch (d) { 181 182 case NO_WEEKDAY : 183 case Calendar.SUNDAY : 184 case Calendar.MONDAY : 185 case Calendar.TUESDAY : 186 case Calendar.WEDNESDAY : 187 case Calendar.THURSDAY : 188 case Calendar.FRIDAY : 189 case Calendar.SATURDAY : 190 return true; 191 192 default : 193 return false; 194 } 195 } 196 197 /** 198 * Method isValidDayPosition 199 * 200 * @return boolean 201 */ 202 public static boolean isValidDayPosition(int p) { 203 return ((p >= -53) && (p <= 53)); 204 } 205 206 /** 207 * Method clone 208 * 209 * @return Object 210 */ 211 public Object clone() { 212 try { 213 DayAndPosition other = (DayAndPosition)super.clone(); 214 215 other.day = day; 216 other.position = position; 217 218 return other; 219 } 220 catch (CloneNotSupportedException e) { 221 throw new InternalError(); 222 } 223 } 224 225 /** 226 * Method toString 227 * 228 * @return String 229 */ 230 public String toString() { 231 StringBundler sb = new StringBundler(6); 232 233 sb.append(getClass().getName()); 234 sb.append("[day="); 235 sb.append(day); 236 sb.append(",position="); 237 sb.append(position); 238 sb.append("]"); 239 240 return sb.toString(); 241 } 242 243 }