code: @Override
     protected ResultSet findChildNodesByParentIdentifierCQ(String parentIdentifier) throws SQLException
     {
        if (findNodesByParentIdCQ == null)
        {
           findNodesByParentIdCQ = dbConnection.prepareStatement(FIND_NODES_BY_PARENTID_CQ);
        }
        else
        {
           findNodesByParentIdCQ.clearParameters();
        }
  
        findNodesByParentIdCQ.setString(1, parentIdentifier);
        return findNodesByParentIdCQ.executeQuery();
     }
docs: {@inheritDoc}