int function ( ) { return offset ; }
gets the first index of items to fetch . the offset is only used when fetching items , but not when counting the number of available items . concode_field_sep F filter concode_elem_sep int offset concode_elem_sep List<QuerySortOrder> sortOrders concode_elem_sep int limit concode_elem_sep Comparator<T> inMemorySorting concode_field_sep Optional<F> getFilter concode_elem_sep int getLimit concode_elem_sep List<QuerySortOrder> getSortOrders concode_elem_sep Comparator<T> getInMemorySorting