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ICU 65.1
65.1
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TimeZoneRule is a class representing a rule for time zone.
More...
#include <tzrule.h>
Public Member Functions | |
| virtual | ~TimeZoneRule () |
| Destructor. More... | |
| virtual TimeZoneRule * | clone () const =0 |
| Clone this TimeZoneRule object polymorphically. More... | |
| virtual UBool | operator== (const TimeZoneRule &that) const |
Return true if the given TimeZoneRule objects are semantically equal. More... | |
| virtual UBool | operator!= (const TimeZoneRule &that) const |
Return true if the given TimeZoneRule objects are semantically unequal. More... | |
| UnicodeString & | getName (UnicodeString &name) const |
| Fills in "name" with the name of this time zone. More... | |
| int32_t | getRawOffset (void) const |
| Gets the standard time offset. More... | |
| int32_t | getDSTSavings (void) const |
| Gets the amount of daylight saving delta time from the standard time. More... | |
| virtual UBool | isEquivalentTo (const TimeZoneRule &other) const |
| Returns if this rule represents the same rule and offsets as another. More... | |
| virtual UBool | getFirstStart (int32_t prevRawOffset, int32_t prevDSTSavings, UDate &result) const =0 |
| Gets the very first time when this rule takes effect. More... | |
| virtual UBool | getFinalStart (int32_t prevRawOffset, int32_t prevDSTSavings, UDate &result) const =0 |
| Gets the final time when this rule takes effect. More... | |
| virtual UBool | getNextStart (UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate &result) const =0 |
| Gets the first time when this rule takes effect after the specified time. More... | |
| virtual UBool | getPreviousStart (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. More... | |
Public Member Functions inherited from icu::UObject | |
| virtual | ~UObject () |
| Destructor. More... | |
| virtual UClassID | getDynamicClassID () const |
| ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class. More... | |
Protected Member Functions | |
| TimeZoneRule (const UnicodeString &name, int32_t rawOffset, int32_t dstSavings) | |
Constructs a TimeZoneRule with the name, the GMT offset of its standard time and the amount of daylight saving offset adjustment. More... | |
| TimeZoneRule (const TimeZoneRule &source) | |
| Copy constructor. More... | |
| TimeZoneRule & | operator= (const TimeZoneRule &right) |
| Assignment operator. More... | |
TimeZoneRule is a class representing a rule for time zone.
TimeZoneRule has a set of time zone attributes, such as zone name, raw offset (UTC offset for standard time) and daylight saving time offset.
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Destructor.
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protected |
Constructs a TimeZoneRule with the name, the GMT offset of its standard time and the amount of daylight saving offset adjustment.
| name | The time zone name. |
| rawOffset | The UTC offset of its standard time in milliseconds. |
| 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. |
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protected |
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pure virtual |
Clone this TimeZoneRule object polymorphically.
The caller owns the result and should delete it when done.
Implemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
| int32_t icu::TimeZoneRule::getDSTSavings | ( | void | ) | const |
Gets the amount of daylight saving delta time from the standard time.
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pure virtual |
Gets the final time when this rule takes effect.
| prevRawOffset | The standard time offset from UTC before this rule takes effect in milliseconds. |
| prevDSTSavings | The amount of daylight saving offset from the standard time. |
| result | Receives the final time when this rule takes effect. |
Implemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
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pure virtual |
Gets the very first time when this rule takes effect.
| prevRawOffset | The standard time offset from UTC before this rule takes effect in milliseconds. |
| prevDSTSavings | The amount of daylight saving offset from the standard time. |
| result | Receives the very first time when this rule takes effect. |
Implemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
| UnicodeString& icu::TimeZoneRule::getName | ( | UnicodeString & | name | ) | const |
Fills in "name" with the name of this time zone.
| name | Receives the name of this time zone. |
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pure virtual |
Gets the first time when this rule takes effect after the specified time.
| base | The first start time after this base time will be returned. |
| prevRawOffset | The standard time offset from UTC before this rule takes effect in milliseconds. |
| prevDSTSavings | The amount of daylight saving offset from the standard time. |
| inclusive | Whether the base time is inclusive or not. |
| result | Receives The first time when this rule takes effect after the specified base time. |
Implemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
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pure virtual |
Gets the most recent time when this rule takes effect before the specified time.
| base | The most recent time before this base time will be returned. |
| prevRawOffset | The standard time offset from UTC before this rule takes effect in milliseconds. |
| prevDSTSavings | The amount of daylight saving offset from the standard time. |
| inclusive | Whether the base time is inclusive or not. |
| result | Receives The most recent time when this rule takes effect before the specified base time. |
Implemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
| int32_t icu::TimeZoneRule::getRawOffset | ( | void | ) | const |
Gets the standard time offset.
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Returns if this rule represents the same rule and offsets as another.
When two TimeZoneRule objects differ only its names, this method returns true.
| other | The TimeZoneRule object to be compared with. |
TimeZoneRule is the same as this one. Reimplemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
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virtual |
Return true if the given TimeZoneRule objects are semantically unequal.
Objects of different subclasses are considered unequal.
| that | The object to be compared with. |
TimeZoneRule objects are semantically unequal. Reimplemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
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protected |
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virtual |
Return true if the given TimeZoneRule objects are semantically equal.
Objects of different subclasses are considered unequal.
| that | The object to be compared with. |
TimeZoneRule objects are semantically equal. Reimplemented in icu::TimeArrayTimeZoneRule, icu::AnnualTimeZoneRule, and icu::InitialTimeZoneRule.
1.8.13