code: private static boolean getAccessSetFromDB(final String _sql,
                                                final Object _criteria)
          throws CacheReloadException
      {
          boolean ret = false;
          Connection con = null;
          try {
              AccessSet accessSet = null;
              con = Context.getConnection();
              PreparedStatement stmt = null;
              try {
                  stmt = con.prepareStatement(_sql);
                  stmt.setObject(1, _criteria);
                  final ResultSet rs = stmt.executeQuery();
  
                  if (rs.next()) {
                      final long id = rs.getLong(1);
                      final String uuid = rs.getString(2);
                      final String name = rs.getString(3);
                      AccessSet.LOG.debug("read AccessSet '{}' (id = {}, uuid ={})", name, id, uuid);
                      accessSet = new AccessSet(id, uuid, name);
                  }
                  ret = true;
                  rs.close();
              } finally {
                  if (stmt != null) {
                      stmt.close();
                  }
              }
              con.commit();
              if (accessSet != null) {
                  accessSet.readLinks2AccessTypes();
                  accessSet.readLinks2DMTypes();
                  accessSet.readLinks2Status();
                  accessSet.readLinks2Person();
                  // needed due to cluster serialization that does not update automatically
                  AccessSet.cacheAccessSet(accessSet);
              }
          } catch (final SQLException e) {
              throw new CacheReloadException("could not read roles", e);
          } catch (final EFapsException e) {
              throw new CacheReloadException("could not read roles", e);
          } finally {
              try {
                  if (con != null && !con.isClosed()) {
                      con.close();
                  }
              } catch (final SQLException e) {
                  throw new CacheReloadException("could not read child type ids", e);
              }
          }
          return ret;
      }
docs: Read the AccessSet from the DataBase.
  @param _sql  SQL Statement to be executed
  @param _criteria filter criteria
  @return true if founr
  @throws CacheReloadException on error