Examples of org.goda.time.Chronology

org.goda.time.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:
- ISO - Based on the ISO8601 standard and suitable for use after about 1600
- GJ - Historically accurate calendar with Julian followed by Gregorian
- Gregorian - The Gregorian calendar system used for all time (proleptic)
- Julian - The Julian calendar system used for all time (proleptic)
- Buddhist - The Buddhist calendar system which is an offset in years from GJ
- Coptic - The Coptic calendar system which defines 30 day months
- Ethiopic - The Ethiopic calendar system which defines 30 day months
Hopefully future releases will contain more chronologies.
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. @see org.joda.time.chrono.ISOChronology @see org.joda.time.chrono.GJChronology @see org.joda.time.chrono.GregorianChronology @see org.joda.time.chrono.JulianChronology @see org.joda.time.chrono.CopticChronology @see org.joda.time.chrono.BuddhistChronology @see org.joda.time.chrono.EthiopicChronology @author Stephen Colebourne @author Brian S O'Neill @since 1.0

     * @return the total length of the period as a duration relative to the start instant
     * @throws ArithmeticException if the millis exceeds the capacity of the duration
     */
    public Duration toDurationFrom(ReadableInstant startInstant) {
        long startMillis = DateTimeUtils.getInstantMillis(startInstant);
        Chronology chrono = DateTimeUtils.getInstantChronology(startInstant);
        long endMillis = chrono.add(this, startMillis, 1);
        return new Duration(startMillis, endMillis);
    }

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     * @return the total length of the period as a duration relative to the end instant
     * @throws ArithmeticException if the millis exceeds the capacity of the duration
     */
    public Duration toDurationTo(ReadableInstant endInstant) {
        long endMillis = DateTimeUtils.getInstantMillis(endInstant);
        Chronology chrono = DateTimeUtils.getInstantChronology(endInstant);
        long startMillis = chrono.add(this, endMillis, -1);
        return new Duration(startMillis, endMillis);
    }

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        iMinDaysInFirstWeek = minDaysInFirstWeek;
    }


    public DateTimeZone getZone() {
        Chronology base;
        if ((base = getBase()) != null) {
            return base.getZone();
        }
        return DateTimeZone.UTC;
    }

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    }


    public long getDateTimeMillis(
            int year, int monthOfYear, int dayOfMonth, int millisOfDay)
            throws IllegalArgumentException {
        Chronology base;
        if ((base = getBase()) != null) {
            return base.getDateTimeMillis(year, monthOfYear, dayOfMonth, millisOfDay);
        }


        FieldUtils.verifyValueBounds
            (DateTimeFieldType.millisOfDay(), millisOfDay, 0, DateTimeConstants.MILLIS_PER_DAY);
        return getDateMidnightMillis(year, monthOfYear, dayOfMonth) + millisOfDay;

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    public long getDateTimeMillis(
            int year, int monthOfYear, int dayOfMonth,
            int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)
            throws IllegalArgumentException {
        Chronology base;
        if ((base = getBase()) != null) {
            return base.getDateTimeMillis(year, monthOfYear, dayOfMonth,
                                          hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond);
        }


        FieldUtils.verifyValueBounds(DateTimeFieldType.hourOfDay(), hourOfDay, 0, 23);
        FieldUtils.verifyValueBounds(DateTimeFieldType.minuteOfHour(), minuteOfHour, 0, 59);

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     * @param buf  formatted instant is appended to this buffer
     * @param instant  instant to format, null means now
     */
    public void printTo(StringBuffer buf, ReadableInstant instant) {
        long millis = DateTimeUtils.getInstantMillis(instant);
        Chronology chrono = DateTimeUtils.getInstantChronology(instant);
        printTo(buf, millis, chrono);
    }

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        if (instant == null) {
            throw new IllegalArgumentException("Instant must not be null");
        }
        
        long instantMillis = instant.getMillis();
        Chronology chrono = instant.getChronology();
        long instantLocal = instantMillis + chrono.getZone().getOffset(instantMillis);
        chrono = selectChronology(chrono);
        
        DateTimeParserBucket bucket = new DateTimeParserBucket
            (instantLocal, chrono, iLocale, iPivotYear);
        int newPos = parser.parseInto(bucket, text, position);
        instant.setMillis(bucket.computeMillis(false, text));
        if (iOffsetParsed && bucket.getZone() == null) {
            int parsedOffset = bucket.getOffset();
            DateTimeZone parsedZone = DateTimeZone.forOffsetMillis(parsedOffset);
            chrono = chrono.withZone(parsedZone);
        }
        instant.setChronology(chrono);
        return newPos;
    }

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     * @throws IllegalArgumentException if the text to parse is invalid
     */
    public long parseMillis(String text) {
        DateTimeParser parser = requireParser();
        
        Chronology chrono = selectChronology(iChrono);
        DateTimeParserBucket bucket = new DateTimeParserBucket(0, chrono, iLocale, iPivotYear);
        int newPos = parser.parseInto(bucket, text, 0);
        if (newPos >= 0) {
            if (newPos >= text.length()) {
                return bucket.computeMillis(true, text);

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     * @throws IllegalArgumentException if the text to parse is invalid
     */
    public DateTime parseDateTime(String text) {
        DateTimeParser parser = requireParser();
        
        Chronology chrono = selectChronology(null);
        DateTimeParserBucket bucket = new DateTimeParserBucket(0, chrono, iLocale, iPivotYear);
        int newPos = parser.parseInto(bucket, text, 0);
        if (newPos >= 0) {
            if (newPos >= text.length()) {
                long millis = bucket.computeMillis(true, text);
                if (iOffsetParsed && bucket.getZone() == null) {
                    int parsedOffset = bucket.getOffset();
                    DateTimeZone parsedZone = DateTimeZone.forOffsetMillis(parsedOffset);
                    chrono = chrono.withZone(parsedZone);
                }
                return new DateTime(millis, chrono);
            }
        } else {
            newPos = ~newPos;

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     * @throws IllegalArgumentException if the text to parse is invalid
     */
    public MutableDateTime parseMutableDateTime(String text) {
        DateTimeParser parser = requireParser();
        
        Chronology chrono = selectChronology(null);
        DateTimeParserBucket bucket = new DateTimeParserBucket(0, chrono, iLocale, iPivotYear);
        int newPos = parser.parseInto(bucket, text, 0);
        if (newPos >= 0) {
            if (newPos >= text.length()) {
                long millis = bucket.computeMillis(true, text);
                if (iOffsetParsed && bucket.getZone() == null) {
                    int parsedOffset = bucket.getOffset();
                    DateTimeZone parsedZone = DateTimeZone.forOffsetMillis(parsedOffset);
                    chrono = chrono.withZone(parsedZone);
                }
                return new MutableDateTime(millis, chrono);
            }
        } else {
            newPos = ~newPos;

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Related Classes of org.goda.time.Chronology

org.goda.time.base.AbstractInstant

org.goda.time.base.AbstractPartial

org.goda.time.base.BaseDateTime

org.goda.time.base.BaseInterval

org.goda.time.base.BasePeriod

org.goda.time.base.BaseSingleFieldPeriod

org.goda.time.chrono.AssembledChronology

org.goda.time.chrono.BasicChronology

org.goda.time.chrono.BuddhistChronology

org.goda.time.chrono.CopticChronology

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