1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. Oracle designates this 9 * particular file as subject to the "Classpath" exception as provided 10 * by Oracle in the LICENSE file that accompanied this code. 11 * 12 * This code is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * version 2 for more details (a copy is included in the LICENSE file that 16 * accompanied this code). 17 * 18 * You should have received a copy of the GNU General Public License version 19 * 2 along with this work; if not, write to the Free Software Foundation, 20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 21 * 22 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 23 * or visit www.oracle.com if you need additional information or have any 24 * questions. 25 */ 26 27 package java.sql; 28 29 /** 30 * <P>A thin wrapper around a millisecond value that allows 31 * JDBC to identify this as an SQL <code>DATE</code> value. A 32 * milliseconds value represents the number of milliseconds that 33 * have passed since January 1, 1970 00:00:00.000 GMT. 34 * <p> 35 * To conform with the definition of SQL <code>DATE</code>, the 36 * millisecond values wrapped by a <code>java.sql.Date</code> instance 37 * must be 'normalized' by setting the 38 * hours, minutes, seconds, and milliseconds to zero in the particular 39 * time zone with which the instance is associated. 40 */ 41 public class Date extends java.util.Date { 42 43 /** 44 * Constructs a <code>Date</code> object initialized with the given 45 * year, month, and day. 46 * <P> 47 * The result is undefined if a given argument is out of bounds. 48 * 49 * @param year the year minus 1900; must be 0 to 8099. (Note that 50 * 8099 is 9999 minus 1900.) 51 * @param month 0 to 11 52 * @param day 1 to 31 53 * @deprecated instead use the constructor <code>Date(long date)</code> 54 */ 55 @Deprecated // Android-added Date(int year, int month, int day)56 public Date(int year, int month, int day) { 57 super(year, month, day); 58 } 59 60 /** 61 * Constructs a <code>Date</code> object using the given milliseconds 62 * time value. If the given milliseconds value contains time 63 * information, the driver will set the time components to the 64 * time in the default time zone (the time zone of the Java virtual 65 * machine running the application) that corresponds to zero GMT. 66 * 67 * @param date milliseconds since January 1, 1970, 00:00:00 GMT not 68 * to exceed the milliseconds representation for the year 8099. 69 * A negative number indicates the number of milliseconds 70 * before January 1, 1970, 00:00:00 GMT. 71 */ Date(long date)72 public Date(long date) { 73 // If the millisecond date value contains time info, mask it out. 74 super(date); 75 76 } 77 78 /** 79 * Sets an existing <code>Date</code> object 80 * using the given milliseconds time value. 81 * If the given milliseconds value contains time information, 82 * the driver will set the time components to the 83 * time in the default time zone (the time zone of the Java virtual 84 * machine running the application) that corresponds to zero GMT. 85 * 86 * @param date milliseconds since January 1, 1970, 00:00:00 GMT not 87 * to exceed the milliseconds representation for the year 8099. 88 * A negative number indicates the number of milliseconds 89 * before January 1, 1970, 00:00:00 GMT. 90 */ setTime(long date)91 public void setTime(long date) { 92 // If the millisecond date value contains time info, mask it out. 93 super.setTime(date); 94 } 95 96 /** 97 * Converts a string in JDBC date escape format to 98 * a <code>Date</code> value. 99 * 100 * @param s a <code>String</code> object representing a date in 101 * in the format "yyyy-[m]m-[d]d". The leading zero for <code>mm</code> 102 * and <code>dd</code> may also be omitted. 103 * @return a <code>java.sql.Date</code> object representing the 104 * given date 105 * @throws IllegalArgumentException if the date given is not in the 106 * JDBC date escape format (yyyy-[m]m-[d]d) 107 */ valueOf(String s)108 public static Date valueOf(String s) { 109 final int YEAR_LENGTH = 4; 110 final int MONTH_LENGTH = 2; 111 final int DAY_LENGTH = 2; 112 final int MAX_MONTH = 12; 113 final int MAX_DAY = 31; 114 int firstDash; 115 int secondDash; 116 Date d = null; 117 118 if (s == null) { 119 throw new java.lang.IllegalArgumentException(); 120 } 121 122 firstDash = s.indexOf('-'); 123 secondDash = s.indexOf('-', firstDash + 1); 124 125 if ((firstDash > 0) && (secondDash > 0) && (secondDash < s.length() - 1)) { 126 String yyyy = s.substring(0, firstDash); 127 String mm = s.substring(firstDash + 1, secondDash); 128 String dd = s.substring(secondDash + 1); 129 if (yyyy.length() == YEAR_LENGTH && 130 (mm.length() >= 1 && mm.length() <= MONTH_LENGTH) && 131 (dd.length() >= 1 && dd.length() <= DAY_LENGTH)) { 132 int year = Integer.parseInt(yyyy); 133 int month = Integer.parseInt(mm); 134 int day = Integer.parseInt(dd); 135 136 if ((month >= 1 && month <= MAX_MONTH) && (day >= 1 && day <= MAX_DAY)) { 137 d = new Date(year - 1900, month - 1, day); 138 } 139 } 140 } 141 if (d == null) { 142 throw new java.lang.IllegalArgumentException(); 143 } 144 145 return d; 146 147 } 148 149 150 /** 151 * Formats a date in the date escape format yyyy-mm-dd. 152 * <P> 153 * @return a String in yyyy-mm-dd format 154 */ toString()155 public String toString () { 156 int year = super.getYear() + 1900; 157 int month = super.getMonth() + 1; 158 int day = super.getDate(); 159 160 char buf[] = "2000-00-00".toCharArray(); 161 buf[0] = Character.forDigit(year/1000,10); 162 buf[1] = Character.forDigit((year/100)%10,10); 163 buf[2] = Character.forDigit((year/10)%10,10); 164 buf[3] = Character.forDigit(year%10,10); 165 buf[5] = Character.forDigit(month/10,10); 166 buf[6] = Character.forDigit(month%10,10); 167 buf[8] = Character.forDigit(day/10,10); 168 buf[9] = Character.forDigit(day%10,10); 169 170 return new String(buf); 171 } 172 173 // Override all the time operations inherited from java.util.Date; 174 175 /** 176 * @deprecated This method is deprecated and should not be used because SQL Date 177 * values do not have a time component. 178 * 179 * @exception java.lang.IllegalArgumentException if this method is invoked 180 * @see #setHours 181 */ 182 @Deprecated // Android-added: changed javadoc to include deprecation note. getHours()183 public int getHours() { 184 throw new java.lang.IllegalArgumentException(); 185 } 186 187 /** 188 * @deprecated This method is deprecated and should not be used because SQL Date 189 * values do not have a time component. 190 * 191 * @exception java.lang.IllegalArgumentException if this method is invoked 192 * @see #setMinutes 193 */ 194 @Deprecated // Android-added: changed javadoc to include deprecation note. getMinutes()195 public int getMinutes() { 196 throw new java.lang.IllegalArgumentException(); 197 } 198 199 /** 200 * @deprecated This method is deprecated and should not be used because SQL Date 201 * values do not have a time component. 202 * 203 * @exception java.lang.IllegalArgumentException if this method is invoked 204 * @see #setSeconds 205 */ 206 @Deprecated // Android-added: changed javadoc to include deprecation note. getSeconds()207 public int getSeconds() { 208 throw new java.lang.IllegalArgumentException(); 209 } 210 211 /** 212 * @deprecated This method is deprecated and should not be used because SQL Date 213 * values do not have a time component. 214 * 215 * @exception java.lang.IllegalArgumentException if this method is invoked 216 * @see #getHours 217 */ 218 @Deprecated // Android-added: changed javadoc to include deprecation note. setHours(int i)219 public void setHours(int i) { 220 throw new java.lang.IllegalArgumentException(); 221 } 222 223 /** 224 * @deprecated This method is deprecated and should not be used because SQL Date 225 * values do not have a time component. 226 * 227 * @exception java.lang.IllegalArgumentException if this method is invoked 228 * @see #getMinutes 229 */ 230 @Deprecated // Android-added: changed javadoc to include deprecation note. setMinutes(int i)231 public void setMinutes(int i) { 232 throw new java.lang.IllegalArgumentException(); 233 } 234 235 /** 236 * @deprecated This method is deprecated and should not be used because SQL Date 237 * values do not have a time component. 238 * 239 * @exception java.lang.IllegalArgumentException if this method is invoked 240 * @see #getSeconds 241 */ 242 @Deprecated // Android-added: changed javadoc to include deprecation note. setSeconds(int i)243 public void setSeconds(int i) { 244 throw new java.lang.IllegalArgumentException(); 245 } 246 247 /** 248 * Private serial version unique ID to ensure serialization 249 * compatibility. 250 */ 251 static final long serialVersionUID = 1511598038487230103L; 252 } 253