Running into a problem with Castor I'm hoping there is a solution for. I'm
currently running v1.3.1 and have the following mapping:
<class name="com.some.domain.Wallet">
<map-to xml="Wallet" />
<!-- Bunch of properties -->
</class>
<!--
Wallet that has special properties used to facilitate marshalling
which is not easily achieved using just the plain Domain objects
-->
<class name="com.some.domain.WalletFlexFacade"
extends="com.some.domain.Wallet">
<map-to xml="Wallet" />
<field name="expenseRequests" collection="collection"
type="com.some.domain.flex.ExpenseRequestFlexFacade">
<bind-xml name="ErLine" />
</field>
</class>
I then unmarshal some XML that has the <ErLine> elements in them like so:
String _MAPPING =
XMLMapper.class.getResource("/resources/mapping/DomainObjectsMapping.xml").toExternalForm();
Mapping _MAP = new Mapping();
_MAP.loadMapping(_MAPPING);
InputSource xmlSource = new InputSource(new StringReader(xml));
Unmarshaller unmarshal = new Unmarshaller(_MAP);
unmarshal.setValidation(false);
Object object = unmarshal.unmarshal(xmlSource);
In the log I get this:
DEBUG - Get descriptor for: com.some.domain.ErLine found: null
DEBUG - Now in method: org.exolab.castor.xml.util.resolvers.ByIntrospection
resolving: com.some.domain.ErLine
DEBUG - Ignored problem at loading class: com.some.domain.ErLine through
class loader: sun.misc.launcher$appclassloa...@601bb1, exception:
java.lang.ClassNotFoundException: com.some.domain.ErLine
DEBUG - Called addAllDescriptors with null or empty descriptor map
DEBUG - Get descriptor for: com.some.domain.ErLine found: null
DEBUG - Adding class name to missing classes: com.some.domain.ErLine
DEBUG - unable to find FieldDescriptor for 'ErLine' in ClassDescriptor of
Wallet - ignoring extra element.
DEBUG - unable to find FieldDescriptor for 'ErLine' in ClassDescriptor of
Wallet - ignoring extra element.
DEBUG - unable to find FieldDescriptor for 'ErLine' in ClassDescriptor of
Wallet - ignoring extra element.
Ok, I think to myself, for some reason Castor can't work backwards from the
<bind-xml> statement for the ErLine element to realize that <ErLine> really
maps to ExpenseRequestFlexFacade (and the get/setExpenseRequestFacade) when
unmarshalling... Also, the "object" being returned from
unmarshal.unmarshal(..) ends up being is a Wallet, not a
WalletFlexFacade!!!! So what I do is add "setErLine/getErLine" methods to
WalletFlexFacade and change the <field> name attribute in the mapping from
"expenseRequests" to "erLines" in hopes that Castor will notice that
WalletFlexFacade is the right class to instantiate, not Wallet. Nope, that
didn't work. It's just hell bent on using "Wallet".
So my question here is: How do I get it to use a WalletFlexFacade and not
the parent class (Wallet) when unmarshaling?
Thanks,
Craig.
--
Craig Tataryn
site: http://www.basementcoders.com/
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twitter: craiger
