Custom Serializer Problem

I'm trying to get a custom serializer to serialize a custom class in a custom class but I keep getting stuck on the SerrializeAttribute method. The SerializeRoot gets called 1st, and I have it calling the SerializeAttribute once for each property of my other custom classes. What I think I'm missing is a means to call a method that can will continue the serialization without me having to serialize from my root object all the way up manuallybut I cant see how to do that.

Does anyone have an example of a custom serializer that can serialize 2 classes like the following

TClass2 = class
private
  FString;
public
  property Data: string read FString write FString;
end;

TClass1 = class
private
  FOtherClass: TClass2;
public
  property OtherClass: TClass2 read FOtherClass;
end;

I can code the serializer for TClass1, but what should the serializer of TClass1 do when it tries to serialize its member OtherClass ?

I'm thinking that TClass1 serializer is only meant to concern itself with itself and not TClass2. It would probably do somethiong like

 aSerializerObject := TJDOJSONObject.Create;
 (aSerializerObject as TJDOJSONObject).O['OtherClass'];

which defines the property as null and returns and that the serializing engine can continue it's process but I havent been able to figure out how.

In the pastebin sample, my problem is in TTestRecordSerializer.SerializeRoot there I call the attibute serializer which I'm sure is coded wrong.

Sorry about this long post, but it's difficult to explain and I doubt I have explained it enough.