InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning and has no actual start times. More...

#include <tzrule.h>

Inheritance diagram for icu::InitialTimeZoneRule:

Public Member Functions
	InitialTimeZoneRule (const UnicodeString &name, int32_t rawOffset, int32_t dstSavings)
	Constructs an `InitialTimeZoneRule` with the name, the GMT offset of its standard time and the amount of daylight saving offset adjustment.

	InitialTimeZoneRule (const InitialTimeZoneRule &source)
	Copy constructor.

virtual	~InitialTimeZoneRule ()
	Destructor.

virtual InitialTimeZoneRule *	clone () const override
	Clone this InitialTimeZoneRule object polymorphically.

InitialTimeZoneRule &	operator= (const InitialTimeZoneRule &right)
	Assignment operator.

virtual bool	operator== (const TimeZoneRule &that) const override
	Return true if the given `TimeZoneRule` objects are semantically equal.

virtual bool	operator!= (const TimeZoneRule &that) const override
	Return true if the given `TimeZoneRule` objects are semantically unequal.

virtual UBool	isEquivalentTo (const TimeZoneRule &that) const override
	Returns if this rule represents the same rule and offsets as another.

virtual UBool	getFirstStart (int32_t prevRawOffset, int32_t prevDSTSavings, UDate &result) const override
	Gets the very first time when this rule takes effect.

virtual UBool	getFinalStart (int32_t prevRawOffset, int32_t prevDSTSavings, UDate &result) const override
	Gets the final time when this rule takes effect.

virtual UBool	getNextStart (UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate &result) const override
	Gets the first time when this rule takes effect after the specified time.

virtual UBool	getPreviousStart (UDate base, int32_t prevRawOffset, int32_t prevDSTSavings, UBool inclusive, UDate &result) const override
	Gets the most recent time when this rule takes effect before the specified time.

virtual UClassID	getDynamicClassID () const override
	Returns a unique class ID POLYMORPHICALLY.

Public Member Functions inherited from icu::TimeZoneRule
virtual	~TimeZoneRule ()
	Destructor.

UnicodeString &	getName (UnicodeString &name) const
	Fills in "name" with the name of this time zone.

int32_t	getRawOffset () const
	Gets the standard time offset.

int32_t	getDSTSavings () const
	Gets the amount of daylight saving delta time from the standard time.

Public Member Functions inherited from icu::UObject
virtual	~UObject ()
	Destructor.

Static Public Member Functions
static UClassID	getStaticClassID ()
	Return the class ID for this class.

Additional Inherited Members
Protected Member Functions inherited from icu::TimeZoneRule
	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.

	TimeZoneRule (const TimeZoneRule &source)
	Copy constructor.

TimeZoneRule &	operator= (const TimeZoneRule &right)
	Assignment operator.

Detailed Description

InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning and has no actual start times.

Stable:: ICU 3.8

Definition at line 202 of file tzrule.h.

Constructor & Destructor Documentation

◆ InitialTimeZoneRule() [1/2]

icu::InitialTimeZoneRule::InitialTimeZoneRule	(	const UnicodeString &	name,
		int32_t	rawOffset,
		int32_t	dstSavings
	)

Constructs an InitialTimeZoneRule with the name, the GMT offset of its standard time and the amount of daylight saving offset adjustment.

Parameters

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.

Stable:: ICU 3.8

◆ InitialTimeZoneRule() [2/2]

icu::InitialTimeZoneRule::InitialTimeZoneRule ( const InitialTimeZoneRule & source )

Copy constructor.

Parameters

source The InitialTimeZoneRule object to be copied.

Stable:: ICU 3.8

◆ ~InitialTimeZoneRule()

virtual icu::InitialTimeZoneRule::~InitialTimeZoneRule ( )

virtual

Destructor.

Stable:: ICU 3.8

Member Function Documentation

◆ clone()

virtual InitialTimeZoneRule * icu::InitialTimeZoneRule::clone ( ) const

overridevirtual

Clone this InitialTimeZoneRule object polymorphically.

The caller owns the result and should delete it when done.

Returns: A copy of the object.

Stable:: ICU 3.8

Implements icu::TimeZoneRule.

◆ getDynamicClassID()

virtual UClassID icu::InitialTimeZoneRule::getDynamicClassID ( ) const

overridevirtual

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.

Returns: 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

Reimplemented from icu::UObject.

◆ getFinalStart()

virtual UBool icu::InitialTimeZoneRule::getFinalStart	(	int32_t	prevRawOffset,
		int32_t	prevDSTSavings,
		UDate &	result
	)		const

overridevirtual

Gets the final time when this rule takes effect.

Parameters

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.

Returns: true if the start time is available. When false is returned, output parameter "result" is unchanged.

Stable:: ICU 3.8

Implements icu::TimeZoneRule.

◆ getFirstStart()

virtual UBool icu::InitialTimeZoneRule::getFirstStart	(	int32_t	prevRawOffset,
		int32_t	prevDSTSavings,
		UDate &	result
	)		const

overridevirtual

Gets the very first time when this rule takes effect.

Parameters

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.

Returns: true if the start time is available. When false is returned, output parameter "result" is unchanged.

Stable:: ICU 3.8

Implements icu::TimeZoneRule.

◆ getNextStart()

virtual UBool icu::InitialTimeZoneRule::getNextStart	(	UDate	base,
		int32_t	prevRawOffset,
		int32_t	prevDSTSavings,
		UBool	inclusive,
		UDate &	result
	)		const

overridevirtual

Gets the first time when this rule takes effect after the specified time.

Parameters

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.

Returns: true if the start time is available. When false is returned, output parameter "result" is unchanged.

Stable:: ICU 3.8

Implements icu::TimeZoneRule.

◆ getPreviousStart()

virtual UBool icu::InitialTimeZoneRule::getPreviousStart	(	UDate	base,
		int32_t	prevRawOffset,
		int32_t	prevDSTSavings,
		UBool	inclusive,
		UDate &	result
	)		const

overridevirtual

Gets the most recent time when this rule takes effect before the specified time.

Parameters

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.

Returns: true if the start time is available. When false is returned, output parameter "result" is unchanged.

Stable:: ICU 3.8

Implements icu::TimeZoneRule.

◆ getStaticClassID()

static UClassID icu::InitialTimeZoneRule::getStaticClassID ( )

static

Return the class ID for this class.

This is useful only for comparing to a return value from getDynamicClassID(). For example:

.   Base* polymorphic_pointer = createPolymorphicObject();
.   if (polymorphic_pointer->getDynamicClassID() ==
.       erived::getStaticClassID()) ...

Returns: The class ID for all objects of this class.

Stable:: ICU 3.8

◆ isEquivalentTo()

virtual UBool icu::InitialTimeZoneRule::isEquivalentTo ( const TimeZoneRule & that ) const

overridevirtual

Returns if this rule represents the same rule and offsets as another.

When two TimeZoneRule objects differ only its names, this method returns true.

Parameters

that	The `TimeZoneRule` object to be compared with.

Returns: true if the other TimeZoneRule is equivalent to this one.

Stable:: ICU 3.8

Reimplemented from icu::TimeZoneRule.

◆ operator!=()

virtual bool icu::InitialTimeZoneRule::operator!= ( const TimeZoneRule & that ) const

overridevirtual

Return true if the given TimeZoneRule objects are semantically unequal.

Objects of different subclasses are considered unequal.

Parameters

that	The object to be compared with.

Returns: true if the given TimeZoneRule objects are semantically unequal.

Stable:: ICU 3.8

Reimplemented from icu::TimeZoneRule.

◆ operator=()

InitialTimeZoneRule & icu::InitialTimeZoneRule::operator= ( const InitialTimeZoneRule & right )

Assignment operator.

Parameters

right The object to be copied.

Stable:: ICU 3.8

◆ operator==()

virtual bool icu::InitialTimeZoneRule::operator== ( const TimeZoneRule & that ) const

overridevirtual

Return true if the given TimeZoneRule objects are semantically equal.

Objects of different subclasses are considered unequal.

Parameters

that	The object to be compared with.

Returns: true if the given TimeZoneRule objects are semantically equal.

Stable:: ICU 3.8

Reimplemented from icu::TimeZoneRule.

The documentation for this class was generated from the following file:

i18n/unicode/tzrule.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ InitialTimeZoneRule() [1/2]

◆ InitialTimeZoneRule() [2/2]

◆ ~InitialTimeZoneRule()

Member Function Documentation

◆ clone()

◆ getDynamicClassID()

◆ getFinalStart()

◆ getFirstStart()

◆ getNextStart()

◆ getPreviousStart()

◆ getStaticClassID()

◆ isEquivalentTo()

◆ operator!=()

◆ operator=()

◆ operator==()