informs if the structure is default instance . concode_field_sep Sorting DEFAULT_EMPTY_INSTANCE concode_elem_sep Map<String,SortOrder> sortRules concode_field_sep Sorting getDefaultEmptyInstance concode_elem_sep void parseSortRule concode_elem_sep Sorting parseQueryParams concode_elem_sep Map<String,SortOrder> getValidSortingRules concode_elem_sep boolean hasValidSortingRules concode_elem_sep Map<String,SortOrder> getSortingRules
boolean function ( ) { return this . sortRules . isEmpty ( ) ; }