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comparison: src/net/fortuna/ical4j/model/Date.java

src/net/fortuna/ical4j/model/Date.java

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1 /**
2 * Copyright (c) 2012, Ben Fortuna
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * o Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * o Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * o Neither the name of Ben Fortuna nor the names of any other contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32 package net.fortuna.ical4j.model;
33
34 import java.text.ParseException;
35 import java.util.TimeZone;
36
37 import net.fortuna.ical4j.util.Dates;
38 import net.fortuna.ical4j.util.TimeZones;
39
40
41 /**
42 * $Id$
43 *
44 * Created on 26/06/2005
45 *
46 * Base class for all representations of time values in RFC2445.
47 *
48 * <pre>
49 * 4.3.4 Date
50 *
51 * Value Name: DATE
52 *
53 * Purpose: This value type is used to identify values that contain a
54 * calendar date.
55 *
56 * Formal Definition: The value type is defined by the following
57 * notation:
58 *
59 * date = date-value
60 *
61 * date-value = date-fullyear date-month date-mday
62 * date-fullyear = 4DIGIT
63 * date-month = 2DIGIT ;01-12
64 * date-mday = 2DIGIT ;01-28, 01-29, 01-30, 01-31
65 * ;based on month/year
66 *
67 * Description: If the property permits, multiple "date" values are
68 * specified as a COMMA character (US-ASCII decimal 44) separated list
69 * of values. The format for the value type is expressed as the [ISO
70 * 8601] complete representation, basic format for a calendar date. The
71 * textual format specifies a four-digit year, two-digit month, and
72 * two-digit day of the month. There are no separator characters between
73 * the year, month and day component text.
74 *
75 * No additional content value encoding (i.e., BACKSLASH character
76 * encoding) is defined for this value type.
77 *
78 * Example: The following represents July 14, 1997:
79 *
80 * 19970714
81 *
82 * </pre>
83 *
84 * @author Ben Fortuna
85 */
86 public class Date extends Iso8601 {
87
88 private static final long serialVersionUID = 7136072363141363141L;
89
90 private static final String PATTERN = "yyyyMMdd";
91
92 /**
93 * Default constructor.
94 */
95 public Date() {
96 super(PATTERN, Dates.PRECISION_DAY, TimeZones.getDateTimeZone());
97 }
98
99 /**
100 * Creates a new date instance with the specified precision. This
101 * constructor is only intended for use by sub-classes.
102 * @param precision the date precision
103 * @param tz the timezone
104 * @see Dates#PRECISION_DAY
105 * @see Dates#PRECISION_SECOND
106 */
107 protected Date(final int precision, TimeZone tz) {
108 super(PATTERN, precision, tz);
109 }
110
111 /**
112 * @param time a date value in milliseconds
113 */
114 public Date(final long time) {
115 super(time, PATTERN, Dates.PRECISION_DAY, TimeZones.getDateTimeZone());
116 }
117
118 /**
119 * Creates a new date instance with the specified precision. This
120 * constructor is only intended for use by sub-classes.
121 * @param time a date value in milliseconds
122 * @param precision the date precision
123 * @param tz the timezone
124 * @see Dates#PRECISION_DAY
125 * @see Dates#PRECISION_SECOND
126 */
127 protected Date(final long time, final int precision, TimeZone tz) {
128 super(time, PATTERN, precision, tz);
129 }
130
131 /**
132 * @param date a date value
133 */
134 public Date(final java.util.Date date) {
135 // this();
136 this(date.getTime(), Dates.PRECISION_DAY, TimeZones.getDateTimeZone());
137 // setTime(date.getTime());
138 }
139
140 /**
141 * @param value a string representation of a date
142 * @throws ParseException where the specified string is not a valid date
143 */
144 public Date(final String value) throws ParseException {
145 this();
146 setTime(getFormat().parse(value).getTime());
147 }
148
149 /**
150 * @param value a string representation of a date
151 * @param pattern a date pattern to apply when parsing
152 * @throws ParseException where the specified string is not a valid date
153 */
154 public Date(String value, String pattern) throws ParseException {
155 super(pattern, Dates.PRECISION_DAY, TimeZones.getDateTimeZone());
156 setTime(getFormat().parse(value).getTime());
157 }
158 }

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