C++ (Cpp) rasqal_engine_new_rowsort_mapの例

コード例 #1

ファイル: rasqal_rowsource_sort.c プロジェクト: bbcarchdev/deb-rasqal

static int
rasqal_sort_rowsource_init(rasqal_rowsource* rowsource, void *user_data)
{
  rasqal_query *query = rowsource->query;
  rasqal_sort_rowsource_context *con;

  con = (rasqal_sort_rowsource_context*)user_data;
  
  if(con->order_seq)
    con->order_size = raptor_sequence_size(con->order_seq);
  else {
    RASQAL_DEBUG1("No order conditions for sort rowsource - passing through");
    con->order_size = -1;
  }
  
  con->map = NULL;

  if(con->order_size > 0 ) {
    /* make a row:NULL map in order to sort or do distinct
     * FIXME: should DISTINCT be separate? 
     */
    con->map = rasqal_engine_new_rowsort_map(con->distinct,
                                             query->compare_flags,
                                             con->order_seq);
    if(!con->map)
      return 1;
  }
  
  con->seq = NULL;

  return 0;
}

コード例 #2

ファイル: rasqal_rowsource_distinct.c プロジェクト: rollxx/rasqal

static int
rasqal_distinct_rowsource_init(rasqal_rowsource* rowsource, void *user_data)
{
  rasqal_query *query = rowsource->query;
  rasqal_distinct_rowsource_context *con;

  con = (rasqal_distinct_rowsource_context*)user_data;
  
  con->map = rasqal_engine_new_rowsort_map(1,
                                           query->compare_flags,
                                           NULL);
  if(!con->map)
    return 1;

  return 0;
}