public void execute( Setup setup, ConnectionSet connectionSet )
      throws Exception
   {
      print("Start");
      Connection con  = connectionSet.getConnection();
      //
      ContractRemover cr = new ContractRemover( setup, con, null );
      long timeStart = System.currentTimeMillis();
      // удаление ранее загруженных договоров
      String query = "SELECT id FROM contract WHERE gr & (1<<?) != 0";
      PreparedStatement ps  = con.prepareStatement( query );
      ps.setInt( 1, LOADED_GROUP );
      ResultSet rs = ps.executeQuery();
      int count = 0;
      while ( rs.next() )
      {
         cr.deleteContract( rs.getInt( 1 ) );
         ++count;            
      }
      ps.close();
      print( "Removed " + count + " contracts..." );
      long timeEnd = System.currentTimeMillis();
      print( "Process time: " + (timeEnd - timeStart)/1000 + " s." );
   }