type PureWVal = class(OpenXmlElement)
public
    function Create();overload;
    function Create(_node);overload;
    function Create(_parent, _prefix, _local_name);overload;
    function Init();override;
    function InitAttributes();override;
    function InitChildren();override;
    function InitNode(_node);override;
    function Copy(_obj);override;

    property Val read ReadXmlAttrVal write WriteXmlAttrVal;
    function ReadXmlAttrVal();
    function WriteXmlAttrVal(_value);

public
    //  Attributes
    XmlAttrVal;

    // Children

end;

function PureWVal.Create();overload;
begin
    self.Create(nil, nil, "");
end;

function PureWVal.Create(_node);overload;
begin
    class(OpenXmlElement).Create(_node);
end;

function PureWVal.Create(_parent, _prefix, _local_name);overload;
begin
    class(OpenXmlElement).Create(_parent, _prefix, _local_name);
end;

function PureWVal.Init();override;
begin
    self.XmlAttrVal := new OpenXmlAttribute("w", "val", nil);
end;

function PureWVal.InitAttributes();override;
begin
    attributes_ := array(
        self.XmlAttrVal,
    );
end;

function PureWVal.InitChildren();override;
begin
    child_elements_ := array(
    );
    sorted_child_ := array(
        "": -1,
    );
end;

function PureWVal.InitNode(_node);override;
begin
    if ifObj(self.XmlNode) then
        for k,v in child_elements_ do v.InitNode(nil);
    self.XmlNode := ifObj(_node) ? _node : nil;
end;

function PureWVal.Copy(_obj);override;
begin
    if not ifnil(_obj.XmlAttrVal.Value) then
        self.XmlAttrVal.Value := _obj.XmlAttrVal.Value;
end;

function PureWVal.ReadXmlAttrVal();
begin
    return self.XmlAttrVal.Value;
end;

function PureWVal.WriteXmlAttrVal(_value);
begin
    self.XmlAttrVal.Value := _value;
end;