gets tracking id . concode_field_sep String itemBarcode concode_elem_sep String patronBarcode concode_elem_sep String owningInstitutionId concode_elem_sep String trackingId concode_field_sep void setPatronBarcode concode_elem_sep void setOwningInstitutionId concode_elem_sep void setTrackingId concode_elem_sep String getItemBarcode concode_elem_sep String getPatronBarcode concode_elem_sep String getOwningInstitutionId concode_elem_sep void setItemBarcode
String function ( ) { return trackingId ; }