code: public List<ColumnResult<ConstructorResult<T>>> getAllColumn()
     {
        List<ColumnResult<ConstructorResult<T>>> list = new ArrayList<ColumnResult<ConstructorResult<T>>>();
        List<Node> nodeList = childNode.get("column");
        for(Node node: nodeList)
        {
           ColumnResult<ConstructorResult<T>>  type = new ColumnResultImpl<ConstructorResult<T>>(this, "column", childNode, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>column</code> elements
  @return list of <code>column</code>