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Issue 18836004: Move ICU headers from public/{common,i18n} to source/{common,i18n} (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu46.git@master
Patch Set: same as ps #3. retry uploading Created 7 years, 5 months ago
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1 /*
2 *******************************************************************************
3 * Copyright (C) 2007-2008, International Business Machines Corporation and *
4 * others. All Rights Reserved. *
5 *******************************************************************************
6 */
7 #ifndef TZTRANS_H
8 #define TZTRANS_H
9
10 /**
11 * \file
12 * \brief C++ API: Time zone transition
13 */
14
15 #include "unicode/utypes.h"
16
17 #if !UCONFIG_NO_FORMATTING
18
19 #include "unicode/uobject.h"
20
21 U_NAMESPACE_BEGIN
22
23 // Forward declaration
24 class TimeZoneRule;
25
26 /**
27 * <code>TimeZoneTransition</code> is a class representing a time zone transitio n.
28 * An instance has a time of transition and rules for both before and after the transition.
29 * @stable ICU 3.8
30 */
31 class U_I18N_API TimeZoneTransition : public UObject {
32 public:
33 /**
34 * Constructs a <code>TimeZoneTransition</code> with the time and the rules before/after
35 * the transition.
36 *
37 * @param time The time of transition in milliseconds since the base time.
38 * @param from The time zone rule used before the transition.
39 * @param to The time zone rule used after the transition.
40 * @stable ICU 3.8
41 */
42 TimeZoneTransition(UDate time, const TimeZoneRule& from, const TimeZoneRule& to);
43
44 /**
45 * Constructs an empty <code>TimeZoneTransition</code>
46 * @stable ICU 3.8
47 */
48 TimeZoneTransition();
49
50 /**
51 * Copy constructor.
52 * @param source The TimeZoneTransition object to be copied.
53 * @stable ICU 3.8
54 */
55 TimeZoneTransition(const TimeZoneTransition& source);
56
57 /**
58 * Destructor.
59 * @stable ICU 3.8
60 */
61 ~TimeZoneTransition();
62
63 /**
64 * Clone this TimeZoneTransition object polymorphically. The caller owns the result and
65 * should delete it when done.
66 * @return A copy of the object.
67 * @stable ICU 3.8
68 */
69 TimeZoneTransition* clone(void) const;
70
71 /**
72 * Assignment operator.
73 * @param right The object to be copied.
74 * @stable ICU 3.8
75 */
76 TimeZoneTransition& operator=(const TimeZoneTransition& right);
77
78 /**
79 * Return true if the given TimeZoneTransition objects are semantically equa l. Objects
80 * of different subclasses are considered unequal.
81 * @param that The object to be compared with.
82 * @return true if the given TimeZoneTransition objects are semantically eq ual.
83 * @stable ICU 3.8
84 */
85 UBool operator==(const TimeZoneTransition& that) const;
86
87 /**
88 * Return true if the given TimeZoneTransition objects are semantically uneq ual. Objects
89 * of different subclasses are considered unequal.
90 * @param that The object to be compared with.
91 * @return true if the given TimeZoneTransition objects are semantically un equal.
92 * @stable ICU 3.8
93 */
94 UBool operator!=(const TimeZoneTransition& that) const;
95
96 /**
97 * Returns the time of transition in milliseconds.
98 * @return The time of the transition in milliseconds since the 1970 Jan 1 e poch time.
99 * @stable ICU 3.8
100 */
101 UDate getTime(void) const;
102
103 /**
104 * Sets the time of transition in milliseconds.
105 * @param time The time of the transition in milliseconds since the 1970 Jan 1 epoch time.
106 * @stable ICU 3.8
107 */
108 void setTime(UDate time);
109
110 /**
111 * Returns the rule used before the transition.
112 * @return The time zone rule used after the transition.
113 * @stable ICU 3.8
114 */
115 const TimeZoneRule* getFrom(void) const;
116
117 /**
118 * Sets the rule used before the transition. The caller remains
119 * responsible for deleting the <code>TimeZoneRule</code> object.
120 * @param from The time zone rule used before the transition.
121 * @stable ICU 3.8
122 */
123 void setFrom(const TimeZoneRule& from);
124
125 /**
126 * Adopts the rule used before the transition. The caller must
127 * not delete the <code>TimeZoneRule</code> object passed in.
128 * @param from The time zone rule used before the transition.
129 * @stable ICU 3.8
130 */
131 void adoptFrom(TimeZoneRule* from);
132
133 /**
134 * Sets the rule used after the transition. The caller remains
135 * responsible for deleting the <code>TimeZoneRule</code> object.
136 * @param to The time zone rule used after the transition.
137 * @stable ICU 3.8
138 */
139 void setTo(const TimeZoneRule& to);
140
141 /**
142 * Adopts the rule used after the transition. The caller must
143 * not delete the <code>TimeZoneRule</code> object passed in.
144 * @param to The time zone rule used after the transition.
145 * @stable ICU 3.8
146 */
147 void adoptTo(TimeZoneRule* to);
148
149 /**
150 * Returns the rule used after the transition.
151 * @return The time zone rule used after the transition.
152 * @stable ICU 3.8
153 */
154 const TimeZoneRule* getTo(void) const;
155
156 private:
157 UDate fTime;
158 TimeZoneRule* fFrom;
159 TimeZoneRule* fTo;
160
161 public:
162 /**
163 * Return the class ID for this class. This is useful only for comparing to
164 * a return value from getDynamicClassID(). For example:
165 * <pre>
166 * . Base* polymorphic_pointer = createPolymorphicObject();
167 * . if (polymorphic_pointer->getDynamicClassID() ==
168 * . erived::getStaticClassID()) ...
169 * </pre>
170 * @return The class ID for all objects of this class.
171 * @stable ICU 3.8
172 */
173 static UClassID U_EXPORT2 getStaticClassID(void);
174
175 /**
176 * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This
177 * method is to implement a simple version of RTTI, since not all C++
178 * compilers support genuine RTTI. Polymorphic operator==() and clone()
179 * methods call this method.
180 *
181 * @return The class ID for this object. All objects of a
182 * given class have the same class ID. Objects of
183 * other classes have different class IDs.
184 * @stable ICU 3.8
185 */
186 virtual UClassID getDynamicClassID(void) const;
187 };
188
189 U_NAMESPACE_END
190
191 #endif /* #if !UCONFIG_NO_FORMATTING */
192
193 #endif // TZTRANS_H
194
195 //eof
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