Complex property question

[Voorhoeve, Niels {PBG}]

Hi,

I have a class PurchaseHeader with several complex address properties
(shipToAddress, chargeToAddress, requestorAddress) that are all keyed by
PurchaseHeader.orderNo.  I am trying to map the addresses to the correct
property, but Ibatis is complaining about my result map (see the result
map below).  Is there a way to map this kind of relationship?  Do I have
to tweak the select to return order_no 3 more times under different
names?

<resultMap class="PurchaseHeader" id="PurchaseHeader-report"
extends="PurchaseHeader-result">
        <result property="shipToAddress" 
                column="order_no" 
                select="PurchaseHdrAddr.getPurchaseHdrAddr_shipTo"/>

        <result property="chargeToAddress" 
                column="order_no" 
                select="PurchaseHdrAddr.getPurchaseHdrAddr_chargeTo"/>

        <result property="requestorAddress" 
                column="order_no" 
                select="PurchaseHdrAddr.getPurchaseHdrAddr_requestor"/>

</resultMap>


<resultMap class="PurchaseHeader" id="PurchaseHeader-result">
        <result property="orderNo" javaType="java.lang.String"
                column="order_no" />
                .
                .
                .
        </resultMap>


The error:
--- Check the PurchaseHeader.PurchaseHeader-report.  
--- Check the result mapping for the 'shipToAddress' property.  
--- Cause: com.ibatis.common.beans.ProbeException: There is no READABLE
property named 'orderNo' in class 'java.lang.String'