Hi,
I have an issue with JDO inheritence.
Say I have a Customer class with some fields.
I have a Corporation class which extends Customer, this class has 2 new
fields.
They both enter data into 1 table - customers.
When I try to insert into Customer, that works fine, however when using
Corporation, it tries to perform and insert using only the 2 fields defined
(seemingly ignoring the fields in the superclass 'Customer'), so I get SQL
errors such as invalid column types etc.
Can someone tell me if my mappings are incorrect, or if there is a problem
with Castor doing this type of thing (which I don't think there would/should
be).
Thanks
xml mappings
=====================
<!DOCTYPE databases PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
"http://castor.exolab.org/mapping.dtd";>
<mapping>
<!-- Mapping for com.vwfs.Customer -->
<class name="com.vwfs.Customer" identity="iCustomerID"
key-generator="MAX">
<description>com.vwfs.Customer</description>
<map-to table="customers" xml="customer" />
<field name="iCustomerID" type="integer" get-method="getCustomerID"
set-method="setCustomerID">
<sql name="customer_id" type="integer" />
<xml name="customer_id" node="element" />
</field>
<field name="iCustomerTypeID" type="integer"
get-method="getCustomerTypeID" set-method="setCustomerTypeID"
required="true">
<sql name="customer_type_id" type="integer" />
<xml name="customer_type_id" node="element" />
</field>
<field name="sNickname" type="string" get-method="getNickname"
set-method="setNickname">
<sql name="nickname" type="char" />
<xml name="nickname" node="element" />
</field>
<field name="iVersion" type="integer" get-method="getVersion"
set-method="setVersion">
<sql name="version" type="integer" />
<xml name="version" node="element" />
</field>
<field name="sEmailAddress" type="string"
get-method="getEmailAddress" set-method="setEmailAddress">
<sql name="email_address" type="char" />
<xml name="email_address" node="element" />
</field>
<field name="theCustomerType"
type="com.vwfs.CustomerType"
get-method="getCustomerType"
set-method="setCustomerType"
required="true">
<sql many-key="customer_type_id"/>
</field>
<field name="theCustomerTrackedRecordings"
type="com.vwfs.CustomerTrackedRecording"
get-method="getCustomerTrackedRecordings"
set-method="setCustomerTrackedRecordings"
lazy="true"
collection="collection"
required="false">
</field>
</class>
</mapping>
<!DOCTYPE databases PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
"http://castor.exolab.org/mapping.dtd";>
<mapping>
<!-- Mapping for com.vwfs.Corporation -->
<class name="com.vwfs.Corporation"
extends="com.vwfs.VolumeCustomer">
<description>com.vwfs.Corporation</description>
<map-to table="customers" xml="customer" />
<field name="sCompanyName" type="string" get-method="getCompanyName"
set-method="setCompanyName">
<sql name="company_name" type="char" />
<xml name="company_name" node="element" />
</field>
</class>
</mapping>
==========================================
Logger output:
[com.vwfs.CustomerType] SQL for creating com.vwfs.Customer: INSERT INTO
"CUSTOMERS"
("CUSTOMER_ID","CUSTOMER_TYPE_ID","NICKNAME","VERSION","EMAIL_ADDRESS")
VALUES (?,?,?,?,?)
[com.vwfs.CustomerType] SQL for creating com.vwfs.Corporation: INSERT INTO
"CUSTOMERS" ("CUSTOMER_ID","COMPANY_NAME") VALUES (?,?)
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