Class PlainDate

base/src/main/java/net/time4j/PlainDate.java:161–3201

 * @author      Meno Hochschild
 */
@CalendarType("iso8601")
public final class PlainDate
    extends Calendrical<IsoDateUnit, PlainDate>
    implements GregorianDate, Normalizer<CalendarUnit>, ThreetenAdapter, LocalizedPatternSupport {

    //~ Statische Felder/Initialisierungen --------------------------------

    // rule index
    private static final int WIM_INDEX = 19;

    /** Fr&uuml;hestm&ouml;gliches Datum [-999999999-01-01]. */
    static final PlainDate MIN =
        new PlainDate(GregorianMath.MIN_YEAR, 1, 1, Weekday.MONDAY);

    /** Sp&auml;testm&ouml;gliches Datum [+999999999-12-31]. */
    static final PlainDate MAX =
        new PlainDate(GregorianMath.MAX_YEAR, 12, 31, Weekday.FRIDAY);

    /** Entspricht dem Jahr {@code -999999999}. */
    static final Integer MIN_YEAR =
        Integer.valueOf(GregorianMath.MIN_YEAR);

    /** Entspricht dem Jahr {@code +999999999}. */
    static final Integer MAX_YEAR =
        Integer.valueOf(GregorianMath.MAX_YEAR);

    private static final Integer VALUE_1 = Integer.valueOf(1);
    private static final Integer VALUE_12 = Integer.valueOf(12);
    private static final Integer STD_YEAR_LEN = Integer.valueOf(365);
    private static final Integer LEAP_YEAR_LEN = Integer.valueOf(366);
    private static final int[] DAY_OF_YEAR_PER_MONTH = new int[12];
    private static final int[] DAY_OF_LEAP_YEAR_PER_MONTH = new int[12];

    static {
        DAY_OF_YEAR_PER_MONTH[0] = 31;
        DAY_OF_YEAR_PER_MONTH[1] = 59;
        DAY_OF_YEAR_PER_MONTH[2] = 90;
        DAY_OF_YEAR_PER_MONTH[3] = 120;
        DAY_OF_YEAR_PER_MONTH[4] = 151;
        DAY_OF_YEAR_PER_MONTH[5] = 181;
        DAY_OF_YEAR_PER_MONTH[6] = 212;
        DAY_OF_YEAR_PER_MONTH[7] = 243;
        DAY_OF_YEAR_PER_MONTH[8] = 273;
        DAY_OF_YEAR_PER_MONTH[9] = 304;
        DAY_OF_YEAR_PER_MONTH[10] = 334;
        DAY_OF_YEAR_PER_MONTH[11] = 365;

        DAY_OF_LEAP_YEAR_PER_MONTH[0] = 31;
        DAY_OF_LEAP_YEAR_PER_MONTH[1] = 60;
        DAY_OF_LEAP_YEAR_PER_MONTH[2] = 91;
        DAY_OF_LEAP_YEAR_PER_MONTH[3] = 121;
        DAY_OF_LEAP_YEAR_PER_MONTH[4] = 152;
        DAY_OF_LEAP_YEAR_PER_MONTH[5] = 182;
        DAY_OF_LEAP_YEAR_PER_MONTH[6] = 213;
        DAY_OF_LEAP_YEAR_PER_MONTH[7] = 244;
        DAY_OF_LEAP_YEAR_PER_MONTH[8] = 274;
        DAY_OF_LEAP_YEAR_PER_MONTH[9] = 305;
        DAY_OF_LEAP_YEAR_PER_MONTH[10] = 335;