org.joda.time.Chronology
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java.lang.Object
public abstract class Chronology
Chronology provides access to the individual date time fields for a chronological calendar system.
Various chronologies are supported by subclasses including ISO and GregorianJulian. To construct a Chronology you should use the factory methods on the chronology subclass in the chrono package.
For example, to obtain the current time in the coptic calendar system:
DateTime dt = new DateTime(CopticChronology.getInstance());
The provided chronology implementations are:
This class defines a number of fields with names from the ISO8601 standard. It does not 'strongly' define these fields however, thus implementations are free to interpret the field names as they wish. For example, a week could be defined as 10 days and a month as 40 days in a special WeirdChronology implementation. Clearly the GJ and ISO implementations provided use the field names as you would expect.
ISOChronology,
GJChronology,
GregorianChronology,
JulianChronology,
CopticChronology,
BuddhistChronology,
EthiopicChronology| Constructor Summary | |
|---|---|
Chronology()
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| Method Summary | |
|---|---|
abstract long |
add(long instant,
long duration,
int scalar)
Adds the duration to the instant, specifying the number of times to add. |
abstract long |
add(ReadablePeriod period,
long instant,
int scalar)
Adds the period to the instant, specifying the number of times to add. |
abstract DurationField |
centuries()
Get the centuries duration field for this chronology. |
abstract DateTimeField |
centuryOfEra()
Get the century of era field for this chronology. |
abstract DateTimeField |
clockhourOfDay()
Get the hour of day (offset to 1-24) field for this chronology. |
abstract DateTimeField |
clockhourOfHalfday()
Get the hour of am/pm (offset to 1-12) field for this chronology. |
abstract DateTimeField |
dayOfMonth()
Get the day of month field for this chronology. |
abstract DateTimeField |
dayOfWeek()
Get the day of week field for this chronology. |
abstract DateTimeField |
dayOfYear()
Get the day of year field for this chronology. |
abstract DurationField |
days()
Get the days duration field for this chronology. |
abstract DateTimeField |
era()
Get the era field for this chronology. |
abstract DurationField |
eras()
Get the eras duration field for this chronology. |
abstract int[] |
get(ReadablePartial partial,
long instant)
Gets the values of a partial from an instant. |
abstract int[] |
get(ReadablePeriod period,
long duration)
Gets the values of a period from an interval. |
abstract int[] |
get(ReadablePeriod period,
long startInstant,
long endInstant)
Gets the values of a period from an interval. |
abstract long |
getDateTimeMillis(int year,
int monthOfYear,
int dayOfMonth,
int millisOfDay)
Returns a datetime millisecond instant, formed from the given year, month, day, and millisecond values. |
abstract long |
getDateTimeMillis(int year,
int monthOfYear,
int dayOfMonth,
int hourOfDay,
int minuteOfHour,
int secondOfMinute,
int millisOfSecond)
Returns a datetime millisecond instant, formed from the given year, month, day, hour, minute, second, and millisecond values. |
abstract long |
getDateTimeMillis(long instant,
int hourOfDay,
int minuteOfHour,
int secondOfMinute,
int millisOfSecond)
Returns a datetime millisecond instant, from from the given instant, hour, minute, second, and millisecond values. |
abstract DateTimeZone |
getZone()
Returns the DateTimeZone that this Chronology operates in, or null if unspecified. |
abstract DateTimeField |
halfdayOfDay()
Get the AM(0) PM(1) field for this chronology. |
abstract DurationField |
halfdays()
Get the halfdays duration field for this chronology. |
abstract DateTimeField |
hourOfDay()
Get the hour of day (0-23) field for this chronology. |
abstract DateTimeField |
hourOfHalfday()
Get the hour of am/pm (0-11) field for this chronology. |
abstract DurationField |
hours()
Get the hours duration field for this chronology. |
abstract DurationField |
millis()
Get the millis duration field for this chronology. |
abstract DateTimeField |
millisOfDay()
Get the millis of day field for this chronology. |
abstract DateTimeField |
millisOfSecond()
Get the millis of second field for this chronology. |
abstract DateTimeField |
minuteOfDay()
Get the minute of day field for this chronology. |
abstract DateTimeField |
minuteOfHour()
Get the minute of hour field for this chronology. |
abstract DurationField |
minutes()
Get the minutes duration field for this chronology. |
abstract DateTimeField |
monthOfYear()
Get the month of year field for this chronology. |
abstract DurationField |
months()
Get the months duration field for this chronology. |
abstract DateTimeField |
secondOfDay()
Get the second of day field for this chronology. |
abstract DateTimeField |
secondOfMinute()
Get the second of minute field for this chronology. |
abstract DurationField |
seconds()
Get the seconds duration field for this chronology. |
abstract long |
set(ReadablePartial partial,
long instant)
Sets the partial into the instant. |
abstract String |
toString()
Gets a debugging toString. |
abstract void |
validate(ReadablePartial partial,
int[] values)
Validates whether the values are valid for the fields of a partial instant. |
abstract DateTimeField |
weekOfWeekyear()
Get the week of a week based year field for this chronology. |
abstract DurationField |
weeks()
Get the weeks duration field for this chronology. |
abstract DateTimeField |
weekyear()
Get the year of a week based year field for this chronology. |
abstract DateTimeField |
weekyearOfCentury()
Get the year of a week based year in a century field for this chronology. |
abstract DurationField |
weekyears()
Get the weekyears duration field for this chronology. |
abstract Chronology |
withUTC()
Returns an instance of this Chronology that operates in the UTC time zone. |
abstract Chronology |
withZone(DateTimeZone zone)
Returns an instance of this Chronology that operates in any time zone. |
abstract DateTimeField |
year()
Get the year field for this chronology. |
abstract DateTimeField |
yearOfCentury()
Get the year of century field for this chronology. |
abstract DateTimeField |
yearOfEra()
Get the year of era field for this chronology. |
abstract DurationField |
years()
Get the years duration field for this chronology. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public Chronology()
| Method Detail |
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public abstract DateTimeZone getZone()
public abstract Chronology withUTC()
public abstract Chronology withZone(DateTimeZone zone)
zone - to use, or default if null
ZonedChronology
public abstract long getDateTimeMillis(int year,
int monthOfYear,
int dayOfMonth,
int millisOfDay)
The default implementation calls upon separate DateTimeFields to determine the result. Subclasses are encouraged to provide a more efficient implementation.
year - year to usemonthOfYear - month to usedayOfMonth - day of month to usemillisOfDay - millisecond to use
IllegalArgumentException - if the values are invalid
public abstract long getDateTimeMillis(int year,
int monthOfYear,
int dayOfMonth,
int hourOfDay,
int minuteOfHour,
int secondOfMinute,
int millisOfSecond)
The default implementation calls upon separate DateTimeFields to determine the result. Subclasses are encouraged to provide a more efficient implementation.
year - year to usemonthOfYear - month to usedayOfMonth - day of month to usehourOfDay - hour to useminuteOfHour - minute to usesecondOfMinute - second to usemillisOfSecond - millisecond to use
IllegalArgumentException - if the values are invalid
public abstract long getDateTimeMillis(long instant,
int hourOfDay,
int minuteOfHour,
int secondOfMinute,
int millisOfSecond)
The default implementation calls upon separate DateTimeFields to determine the result. Subclasses are encouraged to provide a more efficient implementation.
instant - instant to start fromhourOfDay - hour to useminuteOfHour - minute to usesecondOfMinute - second to usemillisOfSecond - millisecond to use
IllegalArgumentException - if the values are invalid
public abstract void validate(ReadablePartial partial,
int[] values)
partial - the partial instant to validatevalues - the values to validate, not null, match fields in partial
IllegalArgumentException - if the instant is invalid
public abstract int[] get(ReadablePartial partial,
long instant)
partial - the partial instant to useinstant - the instant to query
public abstract long set(ReadablePartial partial,
long instant)
partial - the partial instant to useinstant - the instant to update
public abstract int[] get(ReadablePeriod period,
long startInstant,
long endInstant)
period - the period instant to usestartInstant - the start instant of an interval to queryendInstant - the start instant of an interval to query
public abstract int[] get(ReadablePeriod period,
long duration)
period - the period instant to useduration - the duration to query
public abstract long add(ReadablePeriod period,
long instant,
int scalar)
period - the period to add, null means add nothinginstant - the instant to add toscalar - the number of times to add
public abstract long add(long instant,
long duration,
int scalar)
instant - the instant to add toduration - the duration to addscalar - the number of times to add
public abstract DurationField millis()
public abstract DateTimeField millisOfSecond()
public abstract DateTimeField millisOfDay()
public abstract DurationField seconds()
public abstract DateTimeField secondOfMinute()
public abstract DateTimeField secondOfDay()
public abstract DurationField minutes()
public abstract DateTimeField minuteOfHour()
public abstract DateTimeField minuteOfDay()
public abstract DurationField hours()
public abstract DateTimeField hourOfDay()
public abstract DateTimeField clockhourOfDay()
public abstract DurationField halfdays()
public abstract DateTimeField hourOfHalfday()
public abstract DateTimeField clockhourOfHalfday()
public abstract DateTimeField halfdayOfDay()
public abstract DurationField days()
public abstract DateTimeField dayOfWeek()
DayOfWeek values are defined in DateTimeConstants.
They use the ISO definitions, where 1 is Monday and 7 is Sunday.
public abstract DateTimeField dayOfMonth()
public abstract DateTimeField dayOfYear()
public abstract DurationField weeks()
public abstract DateTimeField weekOfWeekyear()
public abstract DurationField weekyears()
public abstract DateTimeField weekyear()
public abstract DateTimeField weekyearOfCentury()
public abstract DurationField months()
public abstract DateTimeField monthOfYear()
public abstract DurationField years()
public abstract DateTimeField year()
public abstract DateTimeField yearOfEra()
public abstract DateTimeField yearOfCentury()
public abstract DurationField centuries()
public abstract DateTimeField centuryOfEra()
public abstract DurationField eras()
public abstract DateTimeField era()
public abstract String toString()
toString in class Object
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