boolean function ( ) { return this . ascending ; }
return the sort order : ascending true or descending false . concode_field_sep Comparator<T> comparator concode_elem_sep boolean ascending concode_field_sep int compare concode_elem_sep void setAscending concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String toString concode_elem_sep void invertOrder