@Override public DvDateTime add(DvDuration q) { if (!getDiffType().isInstance(q)) { throw new IllegalArgumentException("invalid difference type"); } DvDuration d = (DvDuration) q; MutableDateTime mdate = getDateTime().toMutableDateTimeISO(); mdate.add(d.getPeriod()); return new DvDateTime(getOtherReferenceRanges(), getNormalRange(), getNormalStatus(), getAccuracy(), getMagnitudeStatus(), mdate .toDateTimeISO(), this.toString()); }
@Override public DvDateTime add(DvDuration q) { if (!getDiffType().isInstance(q)) { throw new IllegalArgumentException("invalid difference type"); } DvDuration d = (DvDuration) q; MutableDateTime mdate = getDateTime().toMutableDateTimeISO(); mdate.add(d.getPeriod()); return new DvDateTime(getOtherReferenceRanges(), getNormalRange(), getNormalStatus(), getAccuracy(), getMagnitudeStatus(), mdate .toDateTimeISO(), this.toString()); }