~/abap.dev — code, crafted in SAP
florin @ s4hana : ~/abap/posts/factory-pattern/src/zif_vehicle.intf.abap $ cat zif_vehicle.intf.abap
factory-pattern / src / zif_vehicle.intf.abap
ABAP 12 lines 
INTERFACE zif_vehicle PUBLIC.

  METHODS:
    get_type
      RETURNING
        VALUE(rv_type) TYPE string,
    describe
      RETURNING
        VALUE(rv_desc) TYPE string.

ENDINTERFACE.