private String resolveSearchField(IBindingSet bs){
  String searchFieldStr=resolveAsString(searchField,bs);
  if (searchFieldStr == null || searchFieldStr.isEmpty()) {
    searchFieldStr=defaults.getDefaultSearchField();
  }
  return searchFieldStr == null || searchFieldStr.isEmpty() ? FTS.Options.DEFAULT_SEARCH_FIELD : searchFieldStr;
}

private String resolveSearchField ( IBindingSet bs ) { String searchFieldStr = resolveAsString ( searchField , bs ) ; if ( searchFieldStr == null || searchFieldStr . isEmpty ( ) ) { searchFieldStr = defaults . getDefaultSearchField ( ) ; } return searchFieldStr == null || searchFieldStr . isEmpty ( ) ? FTS . Options . DEFAULT_SEARCH_FIELD : searchFieldStr ; }
resolves the search field , which is either a constant or a variable to be looked up in the binding set .
