Class TimeUnitRule

base/src/main/java/net/time4j/Moment.java:2598–2707

    }

    private static class TimeUnitRule
        implements UnitRule<Moment> {

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

        private final TimeUnit unit;

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

        TimeUnitRule(TimeUnit unit) {
            super();

            this.unit = unit;

        }

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

        @Override
        public Moment addTo(
            Moment context,
            long amount
        ) {

            if (this.unit.compareTo(TimeUnit.SECONDS) >= 0) {
                long secs =
                    Math.multiplyExact(amount, this.unit.toSeconds(1));
                return Moment.of(
                    Math.addExact(context.getPosixTime(), secs),
                    context.getNanosecond(),
                    POSIX
                );
            } else { // MILLIS, MICROS, NANOS
                long nanos =
                    Math.multiplyExact(amount, this.unit.toNanos(1));
                long sum = Math.addExact(context.getNanosecond(), nanos);
                int nano = (int) Math.floorMod(sum, MRD);
                long second = Math.floorDiv(sum, MRD);

                return Moment.of(
                    Math.addExact(context.getPosixTime(), second),
                    nano,
                    POSIX
                );
            }

        }

        @Override
        public long between(
            Moment start,
            Moment end
        ) {

            long delta;

            if (this.unit.compareTo(TimeUnit.SECONDS) >= 0) {
                delta = (end.getPosixTime() - start.getPosixTime());