type XY = class(OpenXmlElement)
public
    function Create();overload;
    function Create(_node: XmlNode);overload;
    function Create(_parent: tslobj; _prefix: string; _local_name: string);overload;
    function Init();override;
    function InitAttributes();override;
    function InitChildren();override;
    function InitNode(_node: XmlNode);override;
    function Copy(_obj: XY);override;

    property X read ReadXmlAttrX write WriteXmlAttrX;
    property Y read ReadXmlAttrY write WriteXmlAttrY;
    function ReadXmlAttrX();
    function WriteXmlAttrX(_value);
    function ReadXmlAttrY();
    function WriteXmlAttrY(_value);

public
    //  Attributes
    XmlAttrX: OpenXmlAttribute;
    XmlAttrY: OpenXmlAttribute;

    // Children

end;

function XY.Create();overload;
begin
    {self.}Create(nil, nil, "");
end;

function XY.Create(_node: XmlNode);overload;
begin
    class(OpenXmlElement).Create(_node: XmlNode);
end;

function XY.Create(_parent: tslobj; _prefix: string; _local_name: string);overload;
begin
    class(OpenXmlElement).Create(_parent, _prefix, _local_name);
end;

function XY.Init();override;
begin
    {self.}XmlAttrX := new OpenXmlAttribute(nil, "x", nil);
    {self.}XmlAttrY := new OpenXmlAttribute(nil, "y", nil);
end;

function XY.InitAttributes();override;
begin
    attributes_ := array(
        {self.}XmlAttrX,
        {self.}XmlAttrY,
    );
end;

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

function XY.InitNode(_node: XmlNode);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 XY.Copy(_obj: XY);override;
begin
    if not ifnil(_obj.XmlAttrX.Value) then
        {self.}XmlAttrX.Value := _obj.XmlAttrX.Value;
    if not ifnil(_obj.XmlAttrY.Value) then
        {self.}XmlAttrY.Value := _obj.XmlAttrY.Value;
end;

function XY.ReadXmlAttrX();
begin
    return {self.}XmlAttrX.Value;
end;

function XY.WriteXmlAttrX(_value);
begin
    {self.}XmlAttrX.Value := _value;
end;

function XY.ReadXmlAttrY();
begin
    return {self.}XmlAttrY.Value;
end;

function XY.WriteXmlAttrY(_value);
begin
    {self.}XmlAttrY.Value := _value;
end;