Here is how I worked around this problem:
First in your AppModule prevent Hibernate from contributing the
ValueEncoderSource with this:
public static void
contributeFactoryDefaults(MappedConfiguration<String, String>
configuration)
{
configuration.override(HibernateSymbols.PROVIDE_ENTITY_VALUE_ENCODERS,
"false");
}
Then implement your own contributeValueEncoderSource skipping the
ValueEncoder creation if entityClass is null
@SuppressWarnings("unchecked")
public static void
contributeValueEncoderSource(MappedConfiguration<Class,
ValueEncoderFactory> configuration,
final
HibernateSessionSource sessionSource,
final Session session,
final TypeCoercer typeCoercer,
final PropertyAccess
propertyAccess,
final LoggerSource loggerSource)
{
org.hibernate.cfg.Configuration config = sessionSource.getConfiguration();
Iterator<PersistentClass> mappings = config.getClassMappings();
while (mappings.hasNext())
{
final PersistentClass persistentClass = mappings.next();
final Class entityClass = persistentClass.getMappedClass();
if (entityClass != null)
{
ValueEncoderFactory factory = new ValueEncoderFactory()
{
public ValueEncoder create(Class type)
{
return new
HibernateEntityValueEncoder(entityClass, persistentClass, session,
propertyAccess,
typeCoercer, loggerSource.getLogger(entityClass));
}
};
configuration.add(entityClass, factory);
}
}
}
That's it.
Now that I know it's not just me, I will file a JIRA issue for adding
the check "if (entityClass != null)" to the main tapestry-hibernate
module.
Bonus track:
I also use an HibernateConfigurer for adding the Listeners
public class EnversHibernateConfigurer implements HibernateConfigurer
{
public EnversHibernateConfigurer() {}
public void configure(Configuration configuration)
{
configuration.setListener("post-insert",
"org.hibernate.envers.event.AuditEventListener");
configuration.setListener("post-update",
"org.hibernate.envers.event.AuditEventListener");
configuration.setListener("post-delete",
"org.hibernate.envers.event.AuditEventListener");
configuration.setListener("pre-collection-update",
"org.hibernate.envers.event.AuditEventListener");
configuration.setListener("pre-collection-remove",
"org.hibernate.envers.event.AuditEventListener");
configuration.setListener("post-collection-recreate",
"org.hibernate.envers.event.AuditEventListener");
}
}
I planned to release this code to open source in January, but if you
are willing to try untested code I can check it in sooner.
I hope it helps.
Saludos.
Alejandro Scandroli.
On Sat, Dec 19, 2009 at 1:32 AM, Howard Lewis Ship <hls...@gmail.com> wrote:
> I'm afraid I'm not familiar enough with envers to help ... I haven't
> heard of it before.
>
> On Fri, Dec 18, 2009 at 4:21 PM, Jim O'Callaghan <jc1000...@yahoo.co.uk>
> wrote:
>> Still stumped on this - any pointers on where to look or Tapestry5 relevant
>> examples would be really helpful.
>>
>> Relevant envers listeners are configured and are working correctly when
>> entities are created / updated. Tapestry (specifically the hibernate
>> session) does not appear to see the generated xyz_AUD entities and complains
>> that these entities are not mapped with an error ex.:
>>
>> Caused by: org.hibernate.hql.ast.QuerySyntaxException:
>> com.abc.xyz.entities.core.user.User_AUD is not mapped [select e, r from ...
>>
>> ... whenever any AuditReader methods are called.
>>
>> Within method contributeValueEncoderSource in HibernateModule.java,
>> persistentClass.getMappedClass() returns null for the *_AUD classes,
>> resulting in an error adding the entity to the configuration (blank key). I
>> tried testing classForName on the *_AUD entities where
>> .hasPojoRepresentation returns false but get class not found exception.
>>
>> Towards the end of startup output I do see the entities I expect configured:
>>
>> [INFO] HibernateCoreModule.HibernateSessionSource Configured Hibernate
>> entities: Client_Address_AUD, Client_Phone_AUD,
>> com.abc.xyz.entities.core.SystemKey,
>> com.abc.xyz.entities.core.client.Address,
>> com.abc.xyz.entities.core.client.Address_AUD,
>> com.abc.xyz.entities.core.client.Client,
>> com.abc.xyz.entities.core.client.Client_AUD,
>> com.abc.xyz.entities.core.client.Phone,
>> com.abc.xyz.entities.core.client.Phone_AUD,
>> com.abc.xyz.entities.core.user.Role, com.abc.xyz.entities.core.user.User,
>> com.abc.xyz.entities.core.user.UserClass, com.abc.xyz.entities.menu.Menu,
>> com.abc.xyz.entities.menu.MenuEntry,
>> org.hibernate.envers.DefaultRevisionEntity
>>
>> The earlier startup output does differ between the concrete entities and the
>> envers ones:
>>
>> .
>> .
>> .
>> [INFO] cfg.AnnotationBinder Binding entity from annotated class:
>> com.abc.xyz.entities.core.client.Client
>> [INFO] annotations.EntityBinder Bind entity
>> com.abc.xyz.entities.core.client.Client on table Client
>> [INFO] cfg.AnnotationBinder Binding entity from annotated class:
>> com.abc.xyz.entities.core.client.Address
>> [INFO] annotations.EntityBinder Bind entity
>> com.abc.xyz.entities.core.client.Address on table Address
>> [INFO] cfg.AnnotationBinder Binding entity from annotated class:
>> com.abc.xyz.entities.core.client.Phone
>> [INFO] annotations.EntityBinder Bind entity
>> com.abc.xyz.entities.core.client.Phone on table Phone
>> .
>> .
>> .
>>
>> [INFO] cfg.HbmBinder Mapping class:
>> com.abc.xyz.entities.core.client.Client_AUD -> Client_AUD
>> [INFO] cfg.HbmBinder Mapping class: Client_Address_AUD -> Client_Address_AUD
>> [INFO] cfg.HbmBinder Mapping class: Client_Phone_AUD -> Client_Phone_AUD
>> [INFO] cfg.HbmBinder Mapping class:
>> com.abc.xyz.entities.core.client.Address_AUD -> Address_AUD
>> [INFO] cfg.HbmBinder Mapping class:
>> com.abc.xyz.entities.core.client.Phone_AUD -> Phone_AUD
>> [INFO] cfg.HbmBinder Mapping class:
>> org.hibernate.envers.DefaultRevisionEntity -> REVINFO
>>
>> Does this give any clues - HbmBinder vs. EntityBinder?
>>
>> Regards,
>> Jim.
>>
>>
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>>
>>
>
>
>
> --
> Howard M. Lewis Ship
>
> Creator of Apache Tapestry
>
> The source for Tapestry training, mentoring and support. Contact me to
> learn how I can get you up and productive in Tapestry fast!
>
> (971) 678-5210
> http://howardlewisship.com
>
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>
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