1 /* |
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 /* |
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27 * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos |
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28 * |
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29 * All rights reserved. |
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30 * |
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31 * Redistribution and use in source and binary forms, with or without |
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32 * modification, are permitted provided that the following conditions are met: |
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33 * |
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34 * * Redistributions of source code must retain the above copyright notice, |
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35 * this list of conditions and the following disclaimer. |
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36 * |
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37 * * Redistributions in binary form must reproduce the above copyright notice, |
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38 * this list of conditions and the following disclaimer in the documentation |
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39 * and/or other materials provided with the distribution. |
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40 * |
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41 * * Neither the name of JSR-310 nor the names of its contributors |
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42 * may be used to endorse or promote products derived from this software |
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43 * without specific prior written permission. |
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44 * |
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45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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46 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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48 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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49 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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50 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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51 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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52 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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53 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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54 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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55 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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56 */ |
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57 |
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58 package build.tools.tzdb; |
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59 |
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60 /** |
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61 * A standard set of date/time fields. |
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62 * |
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63 * @since 1.8 |
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64 */ |
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65 enum ChronoField { |
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66 |
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67 /** |
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68 * The second-of-minute. |
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69 * <p> |
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70 * This counts the second within the minute, from 0 to 59. |
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71 * This field has the same meaning for all calendar systems. |
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72 */ |
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73 SECOND_OF_MINUTE("SecondOfMinute", 0, 59), |
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74 |
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75 /** |
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76 * The second-of-day. |
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77 * <p> |
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78 * This counts the second within the day, from 0 to (24 * 60 * 60) - 1. |
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79 * This field has the same meaning for all calendar systems. |
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80 */ |
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81 SECOND_OF_DAY("SecondOfDay", 0, 86400 - 1), |
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82 |
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83 /** |
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84 * The minute-of-hour. |
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85 * <p> |
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86 * This counts the minute within the hour, from 0 to 59. |
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87 * This field has the same meaning for all calendar systems. |
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88 */ |
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89 MINUTE_OF_HOUR("MinuteOfHour", 0, 59), |
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90 |
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91 /** |
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92 * The hour-of-day. |
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93 * <p> |
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94 * This counts the hour within the day, from 0 to 23. |
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95 * This is the hour that would be observed on a standard 24-hour digital clock. |
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96 * This field has the same meaning for all calendar systems. |
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97 */ |
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98 HOUR_OF_DAY("HourOfDay", 0, 23), |
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99 |
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100 |
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101 /** |
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102 * The day-of-month. |
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103 * <p> |
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104 * This represents the concept of the day within the month. |
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105 * In the default ISO calendar system, this has values from 1 to 31 in most months. |
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106 * April, June, September, November have days from 1 to 30, while February has days |
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107 * from 1 to 28, or 29 in a leap year. |
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108 * <p> |
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109 * Non-ISO calendar systems should implement this field using the most recognized |
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110 * day-of-month values for users of the calendar system. |
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111 * Normally, this is a count of days from 1 to the length of the month. |
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112 */ |
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113 DAY_OF_MONTH("DayOfMonth", 1, 31), |
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114 |
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115 /** |
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116 * The month-of-year, such as March. |
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117 * <p> |
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118 * This represents the concept of the month within the year. |
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119 * In the default ISO calendar system, this has values from January (1) to December (12). |
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120 * <p> |
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121 * Non-ISO calendar systems should implement this field using the most recognized |
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122 * month-of-year values for users of the calendar system. |
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123 * Normally, this is a count of months starting from 1. |
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124 */ |
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125 MONTH_OF_YEAR("MonthOfYear", 1, 12), |
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126 |
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127 /** |
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128 * The proleptic year, such as 2012. |
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129 * <p> |
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130 * This represents the concept of the year, counting sequentially and using negative numbers. |
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131 * The proleptic year is not interpreted in terms of the era. |
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132 * See {@link #YEAR_OF_ERA} for an example showing the mapping from proleptic year to year-of-era. |
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133 * <p> |
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134 * The standard mental model for a date is based on three concepts - year, month and day. |
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135 * These map onto the {@code YEAR}, {@code MONTH_OF_YEAR} and {@code DAY_OF_MONTH} fields. |
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136 * Note that there is no reference to eras. |
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137 * The full model for a date requires four concepts - era, year, month and day. These map onto |
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138 * the {@code ERA}, {@code YEAR_OF_ERA}, {@code MONTH_OF_YEAR} and {@code DAY_OF_MONTH} fields. |
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139 * Whether this field or {@code YEAR_OF_ERA} is used depends on which mental model is being used. |
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140 * See {@link ChronoLocalDate} for more discussion on this topic. |
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141 * <p> |
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142 * Non-ISO calendar systems should implement this field as follows. |
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143 * If the calendar system has only two eras, before and after a fixed date, then the |
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144 * proleptic-year value must be the same as the year-of-era value for the later era, |
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145 * and increasingly negative for the earlier era. |
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146 * If the calendar system has more than two eras, then the proleptic-year value may be |
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147 * defined with any appropriate value, although defining it to be the same as ISO may be |
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148 * the best option. |
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149 */ |
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150 YEAR("Year", -999_999_999, 999_999_999); |
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151 |
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152 private final String name; |
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153 private final int min; |
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154 private final int max; |
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155 |
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156 private ChronoField(String name, int min, int max) { |
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157 this.name = name; |
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158 this.min= min; |
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159 this.max= max; |
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160 } |
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161 |
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162 /** |
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163 * Checks that the specified value is valid for this field. |
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164 * <p> |
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165 * |
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166 * @param value the value to check |
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167 * @return the value that was passed in |
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168 */ |
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169 public int checkValidValue(int value) { |
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170 if (value >= min && value <= max) { |
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171 return value; |
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172 } |
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173 throw new DateTimeException("Invalid value for " + name + " value: " + value); |
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174 } |
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175 |
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176 public String toString() { |
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177 return name; |
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178 } |
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179 |
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180 } |
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