Joins in SQL Computed Code specification?

Hi -

I have 3 classes: "Class A" has a property X, "Class B" has a property which is a Class A, and I have a "Class C" which has a property of a Class B.

Class A definition

Class USER.ClassA Extends %Persistent

{

Property Propx as %String;

}

Class B definition

Class USER.ClassB Extends %Persistent

{

Property Record as USER.ClassA;

}

Class C defintion (which is where I'm having my problem)

Class USER.ClassC Extends %Persistent

{

Property BRecord As USER.ClassB;

Property ARecord As USER.ClassA [ Calculated, SqlComputeCode = { ????? }, SqlComputed ];

Method ARecordGet() as USER.ClassA

{

 quit ..BRecord.ARecord

}

}

What I'm trying to figure out is, how can I define a property that is a calculated and SQL Computed property in Class C that would show the Class B's Class A value, but I can't find a syntax that works.

{ set {ARecord}={BRecord.ARecord} } doesn't work, nor does

{ set {ARecord}={BRecord->ARecord} }, nor does

{ set {ARecord}={BRecord}.{ARecord} }, nor does

{ set {ARecord}={BRecord}->{ARecord} } 

Before I put in an overt method call (with all of the overhead associated with that) I thought I would ask if there is some sort of curly-braced acceptable form that would work.