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10/28/2024 06:50:42 AM
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alphaindex.h
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appendable.h
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basictz.h
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calendar.h
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caniter.h
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chariter.h
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coll.h
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compactdecimalformat.h
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datefmt.h
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dbbi.h
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decimfmt.h
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docmain.h
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dtrule.h
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edits.h
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gender.h
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idna.h
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listformatter.h
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localpointer.h
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measfmt.h
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measunit.h
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measure.h
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messagepattern.h
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msgfmt.h
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normalizer2.h
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normlzr.h
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nounit.h
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numberformatter.h
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numfmt.h
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numsys.h
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parseerr.h
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parsepos.h
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platform.h
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plurfmt.h
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plurrule.h
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ptypes.h
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putil.h
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rbbi.h
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rbnf.h
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regex.h
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region.h
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reldatefmt.h
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rep.h
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resbund.h
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schriter.h
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scientificnumberformatter.h
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search.h
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selfmt.h
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simpleformatter.h
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simpletz.h
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smpdtfmt.h
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sortkey.h
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std_string.h
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strenum.h
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stringoptions.h
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stringpiece.h
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stringtriebuilder.h
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stsearch.h
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symtable.h
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tblcoll.h
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timezone.h
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tmunit.h
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tmutamt.h
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tmutfmt.h
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translit.h
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tzfmt.h
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tznames.h
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tzrule.h
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tztrans.h
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ubidi.h
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ubiditransform.h
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ubrk.h
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ucal.h
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ucasemap.h
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ucat.h
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uchar.h
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ucharstrie.h
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ucharstriebuilder.h
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uchriter.h
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uclean.h
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ucnv.h
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ucnv_cb.h
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ucnv_err.h
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ucol.h
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ucoleitr.h
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udatpg.h
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uenum.h
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ufieldpositer.h
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uformattable.h
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uidna.h
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uiter.h
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uldnames.h
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ulistformatter.h
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uloc.h
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umachine.h
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unifunct.h
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uniset.h
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unistr.h
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unorm.h
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unum.h
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uobject.h
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upluralrules.h
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uregex.h
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uregion.h
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ureldatefmt.h
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urename.h
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urep.h
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ures.h
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usearch.h
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utext.h
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utf.h
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utf16.h
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utf32.h
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utf8.h
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utf_old.h
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utmscale.h
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utrans.h
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utypes.h
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uvernum.h
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uversion.h
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vtzone.h
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Editing: tzrule.h
Close
// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ******************************************************************************* * Copyright (C) 2007-2008, International Business Machines Corporation and * * others. All Rights Reserved. * ******************************************************************************* */ #ifndef TZRULE_H #define TZRULE_H /** * \file * \brief C++ API: Time zone rule classes */ #include "unicode/utypes.h" #if !UCONFIG_NO_FORMATTING #include "unicode/uobject.h" #include "unicode/unistr.h" #include "unicode/dtrule.h" U_NAMESPACE_BEGIN /** * <code>TimeZoneRule</code> is a class representing a rule for time zone. * <code>TimeZoneRule</code> has a set of time zone attributes, such as zone name, * raw offset (UTC offset for standard time) and daylight saving time offset. * * @stable ICU 3.8 */ class U_I18N_API TimeZoneRule : public UObject { public: /** * Destructor. * @stable ICU 3.8 */ virtual ~TimeZoneRule(); /** * Clone this TimeZoneRule object polymorphically. The caller owns the result and * should delete it when done. * @return A copy of the object. * @stable ICU 3.8 */ virtual TimeZoneRule* clone(void) const = 0; /** * Return true if the given <code>TimeZoneRule</code> objects are semantically equal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically equal. * @stable ICU 3.8 */ virtual UBool operator==(const TimeZoneRule& that) const; /** * Return true if the given <code>TimeZoneRule</code> objects are semantically unequal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically unequal. * @stable ICU 3.8 */ virtual UBool operator!=(const TimeZoneRule& that) const; /** * Fills in "name" with the name of this time zone. * @param name Receives the name of this time zone. * @return A reference to "name" * @stable ICU 3.8 */ UnicodeString& getName(UnicodeString& name) const; /** * Gets the standard time offset. * @return The standard time offset from UTC in milliseconds. * @stable ICU 3.8 */ int32_t getRawOffset(void) const; /** * Gets the amount of daylight saving delta time from the standard time. * @return The amount of daylight saving offset used by this rule * in milliseconds. * @stable ICU 3.8 */ int32_t getDSTSavings(void) const; /** * Returns if this rule represents the same rule and offsets as another. * When two <code>TimeZoneRule</code> objects differ only its names, this method * returns true. * @param other The <code>TimeZoneRule</code> object to be compared with. * @return true if the other <code>TimeZoneRule</code> is the same as this one. * @stable ICU 3.8 */ virtual UBool isEquivalentTo(const TimeZoneRule& other) const; /** * Gets the very first time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the very first time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFirstStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const = 0; /** * Gets the final time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the final time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFinalStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const = 0; /** * Gets the first time when this rule takes effect after the specified time. * @param base The first start time after this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The first time when this rule takes effect after * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getNextStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const = 0; /** * Gets the most recent time when this rule takes effect before the specified time. * @param base The most recent time before this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The most recent time when this rule takes effect before * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getPreviousStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const = 0; protected: /** * Constructs a <code>TimeZoneRule</code> with the name, the GMT offset of its * standard time and the amount of daylight saving offset adjustment. * @param name The time zone name. * @param rawOffset The UTC offset of its standard time in milliseconds. * @param dstSavings The amount of daylight saving offset adjustment in milliseconds. * If this ia a rule for standard time, the value of this argument is 0. * @stable ICU 3.8 */ TimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings); /** * Copy constructor. * @param source The TimeZoneRule object to be copied. * @stable ICU 3.8 */ TimeZoneRule(const TimeZoneRule& source); /** * Assignment operator. * @param right The object to be copied. * @stable ICU 3.8 */ TimeZoneRule& operator=(const TimeZoneRule& right); private: UnicodeString fName; // time name int32_t fRawOffset; // UTC offset of the standard time in milliseconds int32_t fDSTSavings; // DST saving amount in milliseconds }; /** * <code>InitialTimeZoneRule</code> represents a time zone rule * representing a time zone effective from the beginning and * has no actual start times. * @stable ICU 3.8 */ class U_I18N_API InitialTimeZoneRule : public TimeZoneRule { public: /** * Constructs an <code>InitialTimeZoneRule</code> with the name, the GMT offset of its * standard time and the amount of daylight saving offset adjustment. * @param name The time zone name. * @param rawOffset The UTC offset of its standard time in milliseconds. * @param dstSavings The amount of daylight saving offset adjustment in milliseconds. * If this ia a rule for standard time, the value of this argument is 0. * @stable ICU 3.8 */ InitialTimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings); /** * Copy constructor. * @param source The InitialTimeZoneRule object to be copied. * @stable ICU 3.8 */ InitialTimeZoneRule(const InitialTimeZoneRule& source); /** * Destructor. * @stable ICU 3.8 */ virtual ~InitialTimeZoneRule(); /** * Clone this InitialTimeZoneRule object polymorphically. The caller owns the result and * should delete it when done. * @return A copy of the object. * @stable ICU 3.8 */ virtual InitialTimeZoneRule* clone(void) const; /** * Assignment operator. * @param right The object to be copied. * @stable ICU 3.8 */ InitialTimeZoneRule& operator=(const InitialTimeZoneRule& right); /** * Return true if the given <code>TimeZoneRule</code> objects are semantically equal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically equal. * @stable ICU 3.8 */ virtual UBool operator==(const TimeZoneRule& that) const; /** * Return true if the given <code>TimeZoneRule</code> objects are semantically unequal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically unequal. * @stable ICU 3.8 */ virtual UBool operator!=(const TimeZoneRule& that) const; /** * Gets the time when this rule takes effect in the given year. * @param year The Gregorian year, with 0 == 1 BCE, -1 == 2 BCE, etc. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the start time in the year. * @return true if this rule takes effect in the year and the result is set to * "result". * @stable ICU 3.8 */ UBool getStartInYear(int32_t year, int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Returns if this rule represents the same rule and offsets as another. * When two <code>TimeZoneRule</code> objects differ only its names, this method * returns true. * @param that The <code>TimeZoneRule</code> object to be compared with. * @return true if the other <code>TimeZoneRule</code> is equivalent to this one. * @stable ICU 3.8 */ virtual UBool isEquivalentTo(const TimeZoneRule& that) const; /** * Gets the very first time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the very first time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFirstStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Gets the final time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the final time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFinalStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Gets the first time when this rule takes effect after the specified time. * @param base The first start time after this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The first time when this rule takes effect after * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getNextStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const; /** * Gets the most recent time when this rule takes effect before the specified time. * @param base The most recent time before this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The most recent time when this rule takes effect before * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getPreviousStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const; public: /** * Return the class ID for this class. This is useful only for comparing to * a return value from getDynamicClassID(). For example: * <pre> * . Base* polymorphic_pointer = createPolymorphicObject(); * . if (polymorphic_pointer->getDynamicClassID() == * . erived::getStaticClassID()) ... * </pre> * @return The class ID for all objects of this class. * @stable ICU 3.8 */ static UClassID U_EXPORT2 getStaticClassID(void); /** * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This * method is to implement a simple version of RTTI, since not all C++ * compilers support genuine RTTI. Polymorphic operator==() and clone() * methods call this method. * * @return The class ID for this object. All objects of a * given class have the same class ID. Objects of * other classes have different class IDs. * @stable ICU 3.8 */ virtual UClassID getDynamicClassID(void) const; }; /** * <code>AnnualTimeZoneRule</code> is a class used for representing a time zone * rule which takes effect annually. The calenday system used for the rule is * is based on Gregorian calendar * * @stable ICU 3.8 */ class U_I18N_API AnnualTimeZoneRule : public TimeZoneRule { public: /** * The constant representing the maximum year used for designating * a rule is permanent. */ static const int32_t MAX_YEAR; /** * Constructs a <code>AnnualTimeZoneRule</code> with the name, the GMT offset of its * standard time, the amount of daylight saving offset adjustment, the annual start * time rule and the start/until years. The input DateTimeRule is copied by this * constructor, so the caller remains responsible for deleting the object. * @param name The time zone name. * @param rawOffset The GMT offset of its standard time in milliseconds. * @param dstSavings The amount of daylight saving offset adjustment in * milliseconds. If this ia a rule for standard time, * the value of this argument is 0. * @param dateTimeRule The start date/time rule repeated annually. * @param startYear The first year when this rule takes effect. * @param endYear The last year when this rule takes effect. If this * rule is effective forever in future, specify MAX_YEAR. * @stable ICU 3.8 */ AnnualTimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings, const DateTimeRule& dateTimeRule, int32_t startYear, int32_t endYear); /** * Constructs a <code>AnnualTimeZoneRule</code> with the name, the GMT offset of its * standard time, the amount of daylight saving offset adjustment, the annual start * time rule and the start/until years. The input DateTimeRule object is adopted * by this object, therefore, the caller must not delete the object. * @param name The time zone name. * @param rawOffset The GMT offset of its standard time in milliseconds. * @param dstSavings The amount of daylight saving offset adjustment in * milliseconds. If this ia a rule for standard time, * the value of this argument is 0. * @param dateTimeRule The start date/time rule repeated annually. * @param startYear The first year when this rule takes effect. * @param endYear The last year when this rule takes effect. If this * rule is effective forever in future, specify MAX_YEAR. * @stable ICU 3.8 */ AnnualTimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings, DateTimeRule* dateTimeRule, int32_t startYear, int32_t endYear); /** * Copy constructor. * @param source The AnnualTimeZoneRule object to be copied. * @stable ICU 3.8 */ AnnualTimeZoneRule(const AnnualTimeZoneRule& source); /** * Destructor. * @stable ICU 3.8 */ virtual ~AnnualTimeZoneRule(); /** * Clone this AnnualTimeZoneRule object polymorphically. The caller owns the result and * should delete it when done. * @return A copy of the object. * @stable ICU 3.8 */ virtual AnnualTimeZoneRule* clone(void) const; /** * Assignment operator. * @param right The object to be copied. * @stable ICU 3.8 */ AnnualTimeZoneRule& operator=(const AnnualTimeZoneRule& right); /** * Return true if the given <code>TimeZoneRule</code> objects are semantically equal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically equal. * @stable ICU 3.8 */ virtual UBool operator==(const TimeZoneRule& that) const; /** * Return true if the given <code>TimeZoneRule</code> objects are semantically unequal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically unequal. * @stable ICU 3.8 */ virtual UBool operator!=(const TimeZoneRule& that) const; /** * Gets the start date/time rule used by this rule. * @return The <code>AnnualDateTimeRule</code> which represents the start date/time * rule used by this time zone rule. * @stable ICU 3.8 */ const DateTimeRule* getRule(void) const; /** * Gets the first year when this rule takes effect. * @return The start year of this rule. The year is in Gregorian calendar * with 0 == 1 BCE, -1 == 2 BCE, etc. * @stable ICU 3.8 */ int32_t getStartYear(void) const; /** * Gets the end year when this rule takes effect. * @return The end year of this rule (inclusive). The year is in Gregorian calendar * with 0 == 1 BCE, -1 == 2 BCE, etc. * @stable ICU 3.8 */ int32_t getEndYear(void) const; /** * Gets the time when this rule takes effect in the given year. * @param year The Gregorian year, with 0 == 1 BCE, -1 == 2 BCE, etc. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the start time in the year. * @return true if this rule takes effect in the year and the result is set to * "result". * @stable ICU 3.8 */ UBool getStartInYear(int32_t year, int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Returns if this rule represents the same rule and offsets as another. * When two <code>TimeZoneRule</code> objects differ only its names, this method * returns true. * @param that The <code>TimeZoneRule</code> object to be compared with. * @return true if the other <code>TimeZoneRule</code> is equivalent to this one. * @stable ICU 3.8 */ virtual UBool isEquivalentTo(const TimeZoneRule& that) const; /** * Gets the very first time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the very first time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFirstStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Gets the final time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the final time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFinalStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Gets the first time when this rule takes effect after the specified time. * @param base The first start time after this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The first time when this rule takes effect after * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getNextStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const; /** * Gets the most recent time when this rule takes effect before the specified time. * @param base The most recent time before this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The most recent time when this rule takes effect before * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getPreviousStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const; private: DateTimeRule* fDateTimeRule; int32_t fStartYear; int32_t fEndYear; public: /** * Return the class ID for this class. This is useful only for comparing to * a return value from getDynamicClassID(). For example: * <pre> * . Base* polymorphic_pointer = createPolymorphicObject(); * . if (polymorphic_pointer->getDynamicClassID() == * . erived::getStaticClassID()) ... * </pre> * @return The class ID for all objects of this class. * @stable ICU 3.8 */ static UClassID U_EXPORT2 getStaticClassID(void); /** * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This * method is to implement a simple version of RTTI, since not all C++ * compilers support genuine RTTI. Polymorphic operator==() and clone() * methods call this method. * * @return The class ID for this object. All objects of a * given class have the same class ID. Objects of * other classes have different class IDs. * @stable ICU 3.8 */ virtual UClassID getDynamicClassID(void) const; }; /** * <code>TimeArrayTimeZoneRule</code> represents a time zone rule whose start times are * defined by an array of milliseconds since the standard base time. * * @stable ICU 3.8 */ class U_I18N_API TimeArrayTimeZoneRule : public TimeZoneRule { public: /** * Constructs a <code>TimeArrayTimeZoneRule</code> with the name, the GMT offset of its * standard time, the amount of daylight saving offset adjustment and * the array of times when this rule takes effect. * @param name The time zone name. * @param rawOffset The UTC offset of its standard time in milliseconds. * @param dstSavings The amount of daylight saving offset adjustment in * milliseconds. If this ia a rule for standard time, * the value of this argument is 0. * @param startTimes The array start times in milliseconds since the base time * (January 1, 1970, 00:00:00). * @param numStartTimes The number of elements in the parameter "startTimes" * @param timeRuleType The time type of the start times, which is one of * <code>DataTimeRule::WALL_TIME</code>, <code>STANDARD_TIME</code> * and <code>UTC_TIME</code>. * @stable ICU 3.8 */ TimeArrayTimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings, const UDate* startTimes, int32_t numStartTimes, DateTimeRule::TimeRuleType timeRuleType); /** * Copy constructor. * @param source The TimeArrayTimeZoneRule object to be copied. * @stable ICU 3.8 */ TimeArrayTimeZoneRule(const TimeArrayTimeZoneRule& source); /** * Destructor. * @stable ICU 3.8 */ virtual ~TimeArrayTimeZoneRule(); /** * Clone this TimeArrayTimeZoneRule object polymorphically. The caller owns the result and * should delete it when done. * @return A copy of the object. * @stable ICU 3.8 */ virtual TimeArrayTimeZoneRule* clone(void) const; /** * Assignment operator. * @param right The object to be copied. * @stable ICU 3.8 */ TimeArrayTimeZoneRule& operator=(const TimeArrayTimeZoneRule& right); /** * Return true if the given <code>TimeZoneRule</code> objects are semantically equal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically equal. * @stable ICU 3.8 */ virtual UBool operator==(const TimeZoneRule& that) const; /** * Return true if the given <code>TimeZoneRule</code> objects are semantically unequal. Objects * of different subclasses are considered unequal. * @param that The object to be compared with. * @return true if the given <code>TimeZoneRule</code> objects are semantically unequal. * @stable ICU 3.8 */ virtual UBool operator!=(const TimeZoneRule& that) const; /** * Gets the time type of the start times used by this rule. The return value * is either <code>DateTimeRule::WALL_TIME</code> or <code>STANDARD_TIME</code> * or <code>UTC_TIME</code>. * * @return The time type used of the start times used by this rule. * @stable ICU 3.8 */ DateTimeRule::TimeRuleType getTimeType(void) const; /** * Gets a start time at the index stored in this rule. * @param index The index of start times * @param result Receives the start time at the index * @return true if the index is within the valid range and * and the result is set. When false, the output * parameger "result" is unchanged. * @stable ICU 3.8 */ UBool getStartTimeAt(int32_t index, UDate& result) const; /** * Returns the number of start times stored in this rule * @return The number of start times. * @stable ICU 3.8 */ int32_t countStartTimes(void) const; /** * Returns if this rule represents the same rule and offsets as another. * When two <code>TimeZoneRule</code> objects differ only its names, this method * returns true. * @param that The <code>TimeZoneRule</code> object to be compared with. * @return true if the other <code>TimeZoneRule</code> is equivalent to this one. * @stable ICU 3.8 */ virtual UBool isEquivalentTo(const TimeZoneRule& that) const; /** * Gets the very first time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the very first time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFirstStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Gets the final time when this rule takes effect. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the final time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getFinalStart(int32_t prevRawOffset, int32_t prevDSTSavings, UDate& result) const; /** * Gets the first time when this rule takes effect after the specified time. * @param base The first start time after this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The first time when this rule takes effect after * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getNextStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const; /** * Gets the most recent time when this rule takes effect before the specified time. * @param base The most recent time before this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The most recent time when this rule takes effect before * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged. * @stable ICU 3.8 */ virtual UBool getPreviousStart(UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate& result) const; private: enum { TIMEARRAY_STACK_BUFFER_SIZE = 32 }; UBool initStartTimes(const UDate source[], int32_t size, UErrorCode& ec); UDate getUTC(UDate time, int32_t raw, int32_t dst) const; DateTimeRule::TimeRuleType fTimeRuleType; int32_t fNumStartTimes; UDate* fStartTimes; UDate fLocalStartTimes[TIMEARRAY_STACK_BUFFER_SIZE]; public: /** * Return the class ID for this class. This is useful only for comparing to * a return value from getDynamicClassID(). For example: * <pre> * . Base* polymorphic_pointer = createPolymorphicObject(); * . if (polymorphic_pointer->getDynamicClassID() == * . erived::getStaticClassID()) ... * </pre> * @return The class ID for all objects of this class. * @stable ICU 3.8 */ static UClassID U_EXPORT2 getStaticClassID(void); /** * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This * method is to implement a simple version of RTTI, since not all C++ * compilers support genuine RTTI. Polymorphic operator==() and clone() * methods call this method. * * @return The class ID for this object. All objects of a * given class have the same class ID. Objects of * other classes have different class IDs. * @stable ICU 3.8 */ virtual UClassID getDynamicClassID(void) const; }; U_NAMESPACE_END #endif /* #if !UCONFIG_NO_FORMATTING */ #endif // TZRULE_H //eof