Check in the pristine copy of ICU 4.6...

icu46/source/i18n/unicode/tzrule.h

+/*
+*******************************************************************************
+* 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