International Components for Unicode for Java (icu4j) 74.2 · com.ibm.icu.impl.EraRules

Field Summary

Modifier and Type	Field and Description
private int	currentEra
private static final int	DAY_MASK
private static final int	MAX_ENCODED_START_YEAR
public static final int	MIN_ENCODED_START
private static final int	MIN_ENCODED_START_YEAR
private static final int	MONTH_MASK
private int	numEras
private int[]	startDates
private static final int	YEAR_MASK

Constructor Summary

Access	Constructor and Description
private	EraRules(int[] startDates, int numEras)

Method Summary

Modifier and Type	Method and Description
private static int	Returns: -1 when encoded date is earlier, 0 when two dates are same, and 1 when encoded date is later. compareEncodedDateWithYMD(int An encoded date encoded, int Year of another date year, int Month of another date month, int Day of another date day) Compare an encoded date with another date specified by year/month/day.
private static int[]	decodeDate(int encodedDate, int[] fillIn)
private static int	Returns: an encoded date. encodeDate(int year year, int month (1-base) month, int day of month day) Encode year/month/date to a single integer.
public int	Returns: era index of current era (or 0, when current date is before the first era) getCurrentEraIndex() Gets the current era index.
public int	Returns: era index (or 0, when the specified date is before the first era) getEraIndex(int Year year, int Month (1-base) month, int Day of month day) Returns era index for the specified year/month/day.
public static EraRules	getInstance(CalType calType, boolean includeTentativeEra)
public int	Returns: number of effective eras getNumberOfEras() Gets number of effective eras
public int[]	Returns: An int array including values of year, month, day of month in this order. When an era has no start date, the result will be January 1st in year whose value is minimum integer. getStartDate(int Era index eraIdx, int[] Receives date fields if supplied. If null, or size of array is less than 3, then a new int[] will be newly allocated. fillIn) Gets start date of an era
public int	Returns: The first year of an era. When a era has no start date, minimum integer value is returned. getStartYear(int Era index eraIdx) Gets start year of an era
private void	initCurrentEra()
private static boolean	isSet(int startDate)
private static boolean	isValidRuleStartDate(int year, int month, int day)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

currentEra	back to summary
private int currentEra

DAY_MASK	back to summary
private static final int DAY_MASK

MAX_ENCODED_START_YEAR	back to summary
private static final int MAX_ENCODED_START_YEAR

MIN_ENCODED_START	back to summary
public static final int MIN_ENCODED_START

MIN_ENCODED_START_YEAR	back to summary
private static final int MIN_ENCODED_START_YEAR

MONTH_MASK	back to summary
private static final int MONTH_MASK

numEras	back to summary
private int numEras

startDates	back to summary
private int[] startDates

YEAR_MASK	back to summary
private static final int YEAR_MASK

Constructor Detail

EraRules	back to summary
private EraRules(int[] startDates, int numEras)

Method Detail

compareEncodedDateWithYMD	back to summary
private static int compareEncodedDateWithYMD(int encoded, int year, int month, int day) Compare an encoded date with another date specified by year/month/day. Parameters encoded:int An encoded date year:int Year of another date month:int Month of another date day:int Day of another date Returns:int -1 when encoded date is earlier, 0 when two dates are same, and 1 when encoded date is later.

compareEncodedDateWithYMD

back to summary

private static int compareEncodedDateWithYMD(int encoded, int year, int month, int day)

Compare an encoded date with another date specified by year/month/day.

Parameters

encoded:int: An encoded date
year:int: Year of another date
month:int: Month of another date
day:int: Day of another date

Returns:int

-1 when encoded date is earlier, 0 when two dates are same, and 1 when encoded date is later.

decodeDate	back to summary
private static int[] decodeDate(int encodedDate, int[] fillIn)

encodeDate	back to summary
private static int encodeDate(int year, int month, int day) Encode year/month/date to a single integer. year is high 16 bits (-32768 to 32767), month is next 8 bits and day of month is last 8 bits. Parameters year:int year month:int month (1-base) day:int day of month Returns:int an encoded date.

encodeDate

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private static int encodeDate(int year, int month, int day)

Encode year/month/date to a single integer. year is high 16 bits (-32768 to 32767), month is next 8 bits and day of month is last 8 bits.

Parameters

year:int: year
month:int: month (1-base)
day:int: day of month

Returns:int

an encoded date.

getCurrentEraIndex	back to summary
public int getCurrentEraIndex() Gets the current era index. This is calculated only once for an instance of EraRules. The current era calculation is based on the default time zone at the time of instantiation. Returns:int era index of current era (or 0, when current date is before the first era)

getCurrentEraIndex

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public int getCurrentEraIndex()

Gets the current era index. This is calculated only once for an instance of EraRules. The current era calculation is based on the default time zone at the time of instantiation.

Returns:int: era index of current era (or 0, when current date is before the first era)

getEraIndex	back to summary
public int getEraIndex(int year, int month, int day) Returns era index for the specified year/month/day. Parameters year:int Year month:int Month (1-base) day:int Day of month Returns:int era index (or 0, when the specified date is before the first era)

getEraIndex

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public int getEraIndex(int year, int month, int day)

Returns era index for the specified year/month/day.

Parameters

year:int: Year
month:int: Month (1-base)
day:int: Day of month

Returns:int

era index (or 0, when the specified date is before the first era)

getInstance	back to summary
public static EraRules getInstance(CalType calType, boolean includeTentativeEra)

getNumberOfEras	back to summary
public int getNumberOfEras() Gets number of effective eras Returns:int number of effective eras

getNumberOfEras

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public int getNumberOfEras()

Gets number of effective eras

Returns:int: number of effective eras

getStartDate	back to summary
public int[] getStartDate(int eraIdx, int[] fillIn) Gets start date of an era Parameters eraIdx:int Era index fillIn:int[] Receives date fields if supplied. If null, or size of array is less than 3, then a new int[] will be newly allocated. Returns:int[] An int array including values of year, month, day of month in this order. When an era has no start date, the result will be January 1st in year whose value is minimum integer.

getStartDate

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public int[] getStartDate(int eraIdx, int[] fillIn)

Gets start date of an era

Parameters

eraIdx:int: Era index
fillIn:int[]: Receives date fields if supplied. If null, or size of array is less than 3, then a new int[] will be newly allocated.

Returns:int[]

An int array including values of year, month, day of month in this order. When an era has no start date, the result will be January 1st in year whose value is minimum integer.

getStartYear	back to summary
public int getStartYear(int eraIdx) Gets start year of an era Parameters eraIdx:int Era index Returns:int The first year of an era. When a era has no start date, minimum integer value is returned.

getStartYear

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public int getStartYear(int eraIdx)

Gets start year of an era

Parameters

eraIdx:int: Era index

Returns:int

The first year of an era. When a era has no start date, minimum integer value is returned.

initCurrentEra	back to summary
private void initCurrentEra()

isSet	back to summary
private static boolean isSet(int startDate)

isValidRuleStartDate	back to summary
private static boolean isValidRuleStartDate(int year, int month, int day)

public Class EraRules

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Field Detail

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