Hi all
We are using hibernate in a JPA setup with hibernate 3.3.1, annotations 3.4.0 and entity manager 3.4.0.
We are attempting to add property change support to our mapped entity classes using aspectj, and aspectj weaves in a new private field to hold the PropertyChangeSupport object. Hibernate then complains because it can't work out how to store the field with an exception looking like:
Code:
Caused by: org.hibernate.MappingException: Could not determine type for: ssabsa.swing.bean.PropertyChangeNotifier$PropertySupport, at table: ORM_Codes, for columns: [org.hibernate.mapping.Column(ajc$instance$ssabsa_swing_bean_PropertyChangeNotifier$ssabsa_swing_bean_PropertyChangeNotifier$PropertySupport)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:292)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:276)
at org.hibernate.mapping.Property.isValid(Property.java:207)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:458)
at org.hibernate.mapping.RootClass.validate(RootClass.java:215)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1135)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1320)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
... 64 more
We obviously don't want that field to be mapped, but have no easy way to hang an @Transient on it. I have tried to add the generated field name to orm.xml as a transient thusly:
Code:
<?xml version="1.0" encoding="UTF-8" ?>
<entity-mappings xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd" version="1.0" >
<entity class="ssabsa.persist.vo.ref.CodeVO" metadata-complete="false">
<attributes>
<transient name="ajc$instance$ssabsa_swing_bean_PropertyChangeNotifier$ssabsa_swing_bean_PropertyChangeNotifier$PropertySupport"/>
</attributes>
</entity>
</entity-mappings>
but end up getting the same error message, although interestingly I now get this at the top of my log file:
Code:
15:05:04,176 WARN [main] [EJB3OverridenAnnotationReader:395] Property ssabsa.persist.vo.ref.CodeVO.ajc$instance$ssabsa_swing_bean_PropertyChangeNotifier$ssabsa_swing_bean_PropertyChangeNotifier$PropertySupport not found in class but described in <mapping-file/> (possible typo error)
So it seems that one part of the hibernate config doesn't think that it's a property (perhaps because it doesn't have get/set methods?) but the later part does -
after ignoring my attempt to mark it as transient. This feels like a bug - if hibernate is going to throw an exception about a field, I should be able to mark it as transient in orm.xml. Whether considered a bug or not, I can't currently do what I want to do here.
Any suggestions on a work-around? I'd prefer not to have to totally switch to property access / config, as it's much more readable to be able to annotate fields rather than getter methods in our entity classes.
Any help much appreciated.
Cheers, Tom
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