Examples of org.goda.time.DateTime

org.goda.time.DateTime
DateTime is the standard implementation of an unmodifiable datetime class.
DateTime is the most widely used implementation of {@link ReadableInstant}. As with all instants, it represents an exact point on the time-line, but limited to the precision of milliseconds. A DateTime calculates its fields with respect to a {@link DateTimeZone time zone}.
Internally, the class holds two pieces of data. Firstly, it holds the datetime as milliseconds from the Java epoch of 1970-01-01T00:00:00Z. Secondly, it holds a {@link Chronology} which determines how themillisecond instant value is converted into the date time fields. The default Chronology is {@link ISOChronology} which is the agreedinternational standard and compatible with the modern Gregorian calendar.
Each individual field can be queried in two ways:
- getHourOfDay()
- hourOfDay().get()
The second technique also provides access to other useful methods on the field:
- numeric value
- text value
- short text value
- maximum/minimum values
- add/subtract
- set
- rounding
DateTime is thread-safe and immutable, provided that the Chronology is as well. All standard Chronology classes supplied are thread-safe and immutable. @author Stephen Colebourne @author Kandarp Shah @author Brian S O'Neill @since 1.0 @see MutableDateTime

        converted.put(field, limitField);
        return limitField;
    }


    void checkLimits(long instant, String desc) {
        DateTime limit;
        if ((limit = iLowerLimit) != null && instant < limit.getMillis()) {
            throw new LimitException(desc, true);
        }
        if ((limit = iUpperLimit) != null && instant >= limit.getMillis()) {
            throw new LimitException(desc, false);
        }
    }

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    return new MutableInterval(Time.cloneAndAdd(mutableInterval.getStart(), Time.MONTH, (int)(amount * direction)), Time.cloneAndAdd(mutableInterval.getEnd(), Time.MONTH, (int)(amount * direction)));
  }


  @Override
  protected MutableInterval _thisMutableInterval(PointerType pointer) {
    DateTime monthStart;
    DateTime monthEnd;
    if (pointer == PointerType.FUTURE) {
      monthStart = Time.cloneAndAdd(Time.ymd(getNow()), Time.DAY_OF_MONTH, 1);
      monthEnd = Time.cloneAndAdd(Time.ym(getNow()), Time.MONTH, 1);
    }
    else if (pointer == PointerType.PAST) {

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            if (chrono == null) {
                if (zone == DateTimeZone.UTC) {
                    // First create without a lower limit.
                    chrono = new IslamicChronology(null, null, leapYears);
                    // Impose lower limit and make another IslamicChronology.
                    DateTime lowerLimit = new DateTime(1, 1, 1, 0, 0, 0, 0, chrono);
                    chrono = new IslamicChronology(
                        LimitChronology.getInstance(chrono, lowerLimit, null),
                         null, leapYears);
                } else {
                    chrono = getInstance(DateTimeZone.UTC, leapYears);

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            if (chrono == null) {
                if (zone == DateTimeZone.UTC) {
                    // First create without a lower limit.
                    chrono = new EthiopicChronology(null, null, minDaysInFirstWeek);
                    // Impose lower limit and make another EthiopicChronology.
                    DateTime lowerLimit = new DateTime(1, 1, 1, 0, 0, 0, 0, chrono);
                    chrono = new EthiopicChronology
                        (LimitChronology.getInstance(chrono, lowerLimit, null),
                         null, minDaysInFirstWeek);
                } else {
                    chrono = getInstance(DateTimeZone.UTC, minDaysInFirstWeek);

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  public static DateTime construct(int year, int month) {
    if (year <= 1900) {
      throw new IllegalArgumentException("Illegal year '" + year + "'");
    }
    return new DateTime(year, month, 1,0,0,0,0);
  }

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    _range = createRange(type);
  }


  @Override
  protected MutableInterval _nextMutableInterval(PointerType pointer) {
    DateTime rangeStart;
    DateTime rangeEnd;
    if (_currentMutableInterval == null) {
      long nowSeconds = (getNow().getMillis() - Time.ymd(getNow()).getMillis()) / 1000;
      if (nowSeconds < _range.getBegin()) {
        if (pointer == Pointer.PointerType.FUTURE) {
          rangeStart = Time.cloneAndAdd(Time.ymd(getNow()), Time.SECOND, (int) _range.getBegin());

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    return _currentMutableInterval;
  }


  @Override
  protected MutableInterval _thisMutableInterval(PointerType pointer) {
    DateTime rangeStart = Time.cloneAndAdd(Time.ymd(getNow()), Time.SECOND, (int) _range.getBegin());
    _currentMutableInterval = new MutableInterval(rangeStart, Time.cloneAndAdd(rangeStart, Time.SECOND,(int) _range.getWidth()));
    return _currentMutableInterval;
  }

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    }
    return new DateTime(year, month, 1,0,0,0,0);
  }


  public static DateTime construct(int year, int month, int day) {
    return new DateTime(year, month, day,0,0,0,0);
  }

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  public static DateTime construct(int year, int month, int day) {
    return new DateTime(year, month, day,0,0,0,0);
  }


  public static DateTime construct(int year, int month, int day, int hour) {
    return new DateTime(year, month, day, hour,0,0,0);
  }

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  public static DateTime construct(int year, int month, int day, int hour) {
    return new DateTime(year, month, day, hour,0,0,0);
  }


  public static DateTime construct(int year, int month, int day, int hour, int minute) {
    return new DateTime(year, month, day,hour,minute,0,0);
  }

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