(1) The court may grant a decree of divorce if, but only if, one of the following requirements is satisfied -

(a) either of the spouses concerned was domiciled in the State on the date of the institution of the proceedings concerned,

(b) either of the spouses was ordinarily resident in the State throughout the period of one year ending on that date.

(2) Where proceedings are pending in a court in respect of an application for the grant of a decree of divorce or in respect of an appeal from the determination of such an application and the court has or had, by virtue of subsection (1), jurisdiction to determine the application, the court shall, notwithstanding section 31(4) of the Act of 1989 or section 39 of the Act of 1995, as the case may be, have jurisdiction to determine an application for the grant of a decree of judicial separation or a decree of nullity in respect of the marriage concerned.