DateTimeRule is a class representing a time in a year by a rule specified by month, day of month, day of week and time in the day. More...

#include <dtrule.h>

Inheritance diagram for icu::DateTimeRule:

Public Types
enum	DateRuleType { DOM = 0 , DOW , DOW_GEQ_DOM , DOW_LEQ_DOM }
	Date rule type constants. More...

enum	TimeRuleType { WALL_TIME = 0 , STANDARD_TIME , UTC_TIME }
	Time rule type constants. More...

Public Member Functions
	DateTimeRule (int32_t month, int32_t dayOfMonth, int32_t millisInDay, TimeRuleType timeType)
	Constructs a `DateTimeRule` by the day of month and the time rule.

	DateTimeRule (int32_t month, int32_t weekInMonth, int32_t dayOfWeek, int32_t millisInDay, TimeRuleType timeType)
	Constructs a `DateTimeRule` by the day of week and its ordinal number and the time rule.

	DateTimeRule (int32_t month, int32_t dayOfMonth, int32_t dayOfWeek, UBool after, int32_t millisInDay, TimeRuleType timeType)
	Constructs a `DateTimeRule` by the first/last day of week on or after/before the day of month and the time rule.

	DateTimeRule (const DateTimeRule &source)
	Copy constructor.

	~DateTimeRule ()
	Destructor.

DateTimeRule *	clone () const
	Clone this DateTimeRule object polymorphically.

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

bool	operator== (const DateTimeRule &that) const
	Return true if the given DateTimeRule objects are semantically equal.

bool	operator!= (const DateTimeRule &that) const
	Return true if the given DateTimeRule objects are semantically unequal.

DateRuleType	getDateRuleType () const
	Gets the date rule type, such as `DOM`

TimeRuleType	getTimeRuleType () const
	Gets the time rule type.

int32_t	getRuleMonth () const
	Gets the rule month.

int32_t	getRuleDayOfMonth () const
	Gets the rule day of month.

int32_t	getRuleDayOfWeek () const
	Gets the rule day of week.

int32_t	getRuleWeekInMonth () const
	Gets the ordinal number of the occurrence of the day of week in the month.

int32_t	getRuleMillisInDay () const
	Gets the rule time in the rule day.

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

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

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

Detailed Description

DateTimeRule is a class representing a time in a year by a rule specified by month, day of month, day of week and time in the day.

Stable:: ICU 3.8

Definition at line 33 of file dtrule.h.

Member Enumeration Documentation

◆ DateRuleType

enum icu::DateTimeRule::DateRuleType

Date rule type constants.

Stable:: ICU 3.8

Enumerator
DOM	The exact day of month, for example, March 11.
DOW	The Nth occurrence of the day of week, for example, 2nd Sunday in March.
DOW_GEQ_DOM	The first occurrence of the day of week on or after the day of monnth, for example, first Sunday on or after March 8.
DOW_LEQ_DOM	The last occurrence of the day of week on or before the day of month, for example, first Sunday on or before March 14.

Definition at line 40 of file dtrule.h.

◆ TimeRuleType

enum icu::DateTimeRule::TimeRuleType

Time rule type constants.

Stable:: ICU 3.8

Enumerator
WALL_TIME	The local wall clock time.
STANDARD_TIME	The local standard time.
UTC_TIME	The UTC time.

Definition at line 55 of file dtrule.h.

Constructor & Destructor Documentation

◆ DateTimeRule() [1/4]

icu::DateTimeRule::DateTimeRule	(	int32_t	month,
		int32_t	dayOfMonth,
		int32_t	millisInDay,
		TimeRuleType	timeType
	)

Constructs a DateTimeRule by the day of month and the time rule.

The date rule type for an instance created by this constructor is DOM.

Parameters

month	The rule month, for example, `Calendar::JANUARY`
dayOfMonth	The day of month, 1-based.
millisInDay	The milliseconds in the rule date.
timeType	The time type, `WALL_TIME` or `STANDARD_TIME` or `UTC_TIME`.

Stable:: ICU 3.8

◆ DateTimeRule() [2/4]

icu::DateTimeRule::DateTimeRule	(	int32_t	month,
		int32_t	weekInMonth,
		int32_t	dayOfWeek,
		int32_t	millisInDay,
		TimeRuleType	timeType
	)

Constructs a DateTimeRule by the day of week and its ordinal number and the time rule.

The date rule type for an instance created by this constructor is DOW.

Parameters

month	The rule month, for example, `Calendar::JANUARY`.
weekInMonth	The ordinal number of the day of week. Negative number may be used for specifying a rule date counted from the end of the rule month.
dayOfWeek	The day of week, for example, `Calendar::SUNDAY`.
millisInDay	The milliseconds in the rule date.
timeType	The time type, `WALL_TIME` or `STANDARD_TIME` or `UTC_TIME`.

Stable:: ICU 3.8

◆ DateTimeRule() [3/4]

icu::DateTimeRule::DateTimeRule	(	int32_t	month,
		int32_t	dayOfMonth,
		int32_t	dayOfWeek,
		UBool	after,
		int32_t	millisInDay,
		TimeRuleType	timeType
	)

Constructs a DateTimeRule by the first/last day of week on or after/before the day of month and the time rule.

The date rule type for an instance created by this constructor is either DOM_GEQ_DOM or DOM_LEQ_DOM.

Parameters

month	The rule month, for example, `Calendar::JANUARY`
dayOfMonth	The day of month, 1-based.
dayOfWeek	The day of week, for example, `Calendar::SUNDAY`.
after	true if the rule date is on or after the day of month.
millisInDay	The milliseconds in the rule date.
timeType	The time type, `WALL_TIME` or `STANDARD_TIME` or `UTC_TIME`.

Stable:: ICU 3.8

◆ DateTimeRule() [4/4]

icu::DateTimeRule::DateTimeRule ( const DateTimeRule & source )

Copy constructor.

Parameters

source The DateTimeRule object to be copied.

Stable:: ICU 3.8

◆ ~DateTimeRule()

icu::DateTimeRule::~DateTimeRule ( )

Destructor.

Stable:: ICU 3.8

Member Function Documentation

◆ clone()

DateTimeRule * icu::DateTimeRule::clone ( ) const

Clone this DateTimeRule object polymorphically.

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

Returns: A copy of the object.

Stable:: ICU 3.8

◆ getDateRuleType()

DateRuleType icu::DateTimeRule::getDateRuleType ( ) const

Gets the date rule type, such as DOM

Returns: The date rule type.

Stable:: ICU 3.8

◆ getDynamicClassID()

virtual UClassID icu::DateTimeRule::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.

◆ getRuleDayOfMonth()

int32_t icu::DateTimeRule::getRuleDayOfMonth ( ) const

Gets the rule day of month.

When the date rule type is DOW, the value is always 0.

Returns: The rule day of month

Stable:: ICU 3.8

◆ getRuleDayOfWeek()

int32_t icu::DateTimeRule::getRuleDayOfWeek ( ) const

Gets the rule day of week.

When the date rule type is DOM, the value is always 0.

Returns: The rule day of week.

Stable:: ICU 3.8

◆ getRuleMillisInDay()

int32_t icu::DateTimeRule::getRuleMillisInDay ( ) const

Gets the rule time in the rule day.

Returns: The time in the rule day in milliseconds.

Stable:: ICU 3.8

◆ getRuleMonth()

int32_t icu::DateTimeRule::getRuleMonth ( ) const

Gets the rule month.

Returns: The rule month.

Stable:: ICU 3.8

◆ getRuleWeekInMonth()

int32_t icu::DateTimeRule::getRuleWeekInMonth ( ) const

Gets the ordinal number of the occurrence of the day of week in the month.

When the date rule type is not DOW, the value is always 0.

Returns: The rule day of week ordinal number in the month.

Stable:: ICU 3.8

◆ getStaticClassID()

static UClassID icu::DateTimeRule::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

◆ getTimeRuleType()

TimeRuleType icu::DateTimeRule::getTimeRuleType ( ) const

Gets the time rule type.

Returns: The time rule type, either WALL_TIME or STANDARD_TIME or UTC_TIME.

Stable:: ICU 3.8

◆ operator!=()

bool icu::DateTimeRule::operator!= ( const DateTimeRule & that ) const

Return true if the given DateTimeRule objects are semantically unequal.

Objects of different subclasses are considered unequal.

Parameters

that	The object to be compared with.

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

Stable:: ICU 3.8

◆ operator=()

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

Assignment operator.

Parameters

right The object to be copied.

Stable:: ICU 3.8

◆ operator==()

bool icu::DateTimeRule::operator== ( const DateTimeRule & that ) const

Return true if the given DateTimeRule objects are semantically equal.

Objects of different subclasses are considered unequal.

Parameters

that	The object to be compared with.

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

Stable:: ICU 3.8

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

i18n/unicode/dtrule.h

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ DateRuleType

◆ TimeRuleType

Constructor & Destructor Documentation

◆ DateTimeRule() [1/4]

◆ DateTimeRule() [2/4]

◆ DateTimeRule() [3/4]

◆ DateTimeRule() [4/4]

◆ ~DateTimeRule()

Member Function Documentation

◆ clone()

◆ getDateRuleType()

◆ getDynamicClassID()

◆ getRuleDayOfMonth()

◆ getRuleDayOfWeek()

◆ getRuleMillisInDay()

◆ getRuleMonth()

◆ getRuleWeekInMonth()

◆ getStaticClassID()

◆ getTimeRuleType()

◆ operator!=()

◆ operator=()

◆ operator==()