Class ClockNormalizer

base/src/main/java/net/time4j/ClockNormalizer.java:40–202

Hilfsobjekt zur Normalisierung einer Uhrzeit-bezogenen Dauer. @author Meno Hochschild @since 3.0

 * @since   3.0
 */
final class ClockNormalizer
    implements Normalizer<ClockUnit> {

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

    private static final int ONLY_MODE = 0;
    private static final int TRUNCATE_MODE = 1;
    private static final int ROUNDING_MODE = 2;

    private static final Map<ClockUnit, ClockNormalizer> MAP_ONLY;
    private static final Map<ClockUnit, ClockNormalizer> MAP_TRUNC;
    private static final Map<ClockUnit, ClockNormalizer> MAP_ROUND;

    static {
        MAP_ONLY = fill(ONLY_MODE);
        MAP_TRUNC = fill(TRUNCATE_MODE);
        MAP_ROUND = fill(ROUNDING_MODE);
    }

    //~ Instanzvariablen --------------------------------------------------

    private final ClockUnit unit;
    private final int mode;

    //~ Konstruktoren -----------------------------------------------------

    private ClockNormalizer(
        ClockUnit unit,
        int mode
    ) {
        super();

        this.unit = unit;
        this.mode = mode;

    }

    //~ Methoden ----------------------------------------------------------

    /**
     * <p>Liefert einen passenden Normalisierer. </p>
     *
     * @param   unit    clock unit
     * @return  unique normalizer instance
     */
    static ClockNormalizer ofOnlyMode(ClockUnit unit) {

        ClockNormalizer ret = MAP_ONLY.get(unit);

        if (ret == null) {
            throw new IllegalArgumentException(unit.name());
        }

        return ret;

    }

    /**