Examples of org.threeten.bp.temporal.ValueRange

org.threeten.bp.temporal.ValueRange
The range of valid values for a date-time field.
All {@link TemporalField} instances have a valid range of values.For example, the ISO day-of-month runs from 1 to somewhere between 28 and 31. This class captures that valid range.
It is important to be aware of the limitations of this class. Only the minimum and maximum values are provided. It is possible for there to be invalid values within the outer range. For example, a weird field may have valid values of 1, 2, 4, 6, 7, thus have a range of '1 - 7', despite that fact that values 3 and 5 are invalid.
Instances of this class are not tied to a specific field.
Specification for implementors
This class is immutable and thread-safe.

         * @param value  the value to convert, must be valid for this rule
         * @return the value as a fraction within the range, from 0 to 1, not null
         * @throws DateTimeException if the value cannot be converted to a fraction
         */
        private BigDecimal convertToFraction(long value) {
            ValueRange range = field.range();
            range.checkValidValue(value, field);
            BigDecimal minBD = BigDecimal.valueOf(range.getMinimum());
            BigDecimal rangeBD = BigDecimal.valueOf(range.getMaximum()).subtract(minBD).add(BigDecimal.ONE);
            BigDecimal valueBD = BigDecimal.valueOf(value).subtract(minBD);
            BigDecimal fraction = valueBD.divide(rangeBD, 9, RoundingMode.FLOOR);
            // stripTrailingZeros bug
            return fraction.compareTo(BigDecimal.ZERO) == 0 ? BigDecimal.ZERO : fraction.stripTrailingZeros();
        }

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         * @param fraction  the fraction to convert, not null
         * @return the value of the field, valid for this rule
         * @throws DateTimeException if the value cannot be converted
         */
        private long convertFromFraction(BigDecimal fraction) {
            ValueRange range = field.range();
            BigDecimal minBD = BigDecimal.valueOf(range.getMinimum());
            BigDecimal rangeBD = BigDecimal.valueOf(range.getMaximum()).subtract(minBD).add(BigDecimal.ONE);
            BigDecimal valueBD = fraction.multiply(rangeBD).setScale(0, RoundingMode.FLOOR).add(minBD);
            return valueBD.longValueExact();
        }

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    //-----------------------------------------------------------------------
    @Override
    public ValueRange range(ChronoField field) {
        switch (field) {
            case PROLEPTIC_MONTH: {
                ValueRange range = PROLEPTIC_MONTH.range();
                return ValueRange.of(range.getMinimum() + YEARS_DIFFERENCE * 12L, range.getMaximum() + YEARS_DIFFERENCE * 12L);
            }
            case YEAR_OF_ERA: {
                ValueRange range = YEAR.range();
                return ValueRange.of(1, -(range.getMinimum() + YEARS_DIFFERENCE) + 1, range.getMaximum() + YEARS_DIFFERENCE);
            }
            case YEAR: {
                ValueRange range = YEAR.range();
                return ValueRange.of(range.getMinimum() + YEARS_DIFFERENCE, range.getMaximum() + YEARS_DIFFERENCE);
            }
        }
        return field.range();
    }

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                    case DAY_OF_MONTH:
                    case DAY_OF_YEAR:
                    case ALIGNED_WEEK_OF_MONTH:
                        return isoDate.range(field);
                    case YEAR_OF_ERA: {
                        ValueRange range = YEAR.range();
                        long max = (getProlepticYear() <= 0 ? -(range.getMinimum() + YEARS_DIFFERENCE) + 1 : range.getMaximum() + YEARS_DIFFERENCE);
                        return ValueRange.of(1, max);
                    }
                }
                return getChronology().range(f);
            }

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    //-----------------------------------------------------------------------
    @Override
    public ValueRange range(ChronoField field) {
        switch (field) {
            case PROLEPTIC_MONTH: {
                ValueRange range = PROLEPTIC_MONTH.range();
                return ValueRange.of(range.getMinimum() - YEARS_DIFFERENCE * 12L, range.getMaximum() - YEARS_DIFFERENCE * 12L);
            }
            case YEAR_OF_ERA: {
                ValueRange range = YEAR.range();
                return ValueRange.of(1, range.getMaximum() - YEARS_DIFFERENCE, -range.getMinimum() + 1 + YEARS_DIFFERENCE);
            }
            case YEAR: {
                ValueRange range = YEAR.range();
                return ValueRange.of(range.getMinimum() - YEARS_DIFFERENCE, range.getMaximum() - YEARS_DIFFERENCE);
            }
        }
        return field.range();
    }

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                    case DAY_OF_MONTH:
                    case DAY_OF_YEAR:
                    case ALIGNED_WEEK_OF_MONTH:
                        return isoDate.range(field);
                    case YEAR_OF_ERA: {
                        ValueRange range = YEAR.range();
                        long max = (getProlepticYear() <= 0 ? -range.getMinimum() + 1 + YEARS_DIFFERENCE : range.getMaximum() - YEARS_DIFFERENCE);
                        return ValueRange.of(1, max);
                    }
                }
                return getChronology().range(f);
            }

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        if (era instanceof JapaneseEra == false) {
            throw new ClassCastException("Era must be JapaneseEra");
        }
        JapaneseEra jera = (JapaneseEra) era;
        int isoYear = jera.startDate().getYear() + yearOfEra - 1;
        ValueRange range = ValueRange.of(1, jera.endDate().getYear() - jera.startDate().getYear() + 1);
        range.checkValidValue(yearOfEra, YEAR_OF_ERA);
        return isoYear;
    }

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Related Classes of org.threeten.bp.temporal.ValueRange

org.threeten.bp.chrono.JapaneseChronology

org.threeten.bp.chrono.MinguoChronology

org.threeten.bp.chrono.MinguoDate

org.threeten.bp.chrono.ThaiBuddhistChronology

org.threeten.bp.chrono.ThaiBuddhistDate

org.threeten.bp.format.DateTimeFormatterBuilder$FractionPrinterParser

org.threeten.bp.DateTimeException

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Examples of org.threeten.bp.temporal.ValueRange

Specification for implementors

Related Classes of org.threeten.bp.temporal.ValueRange