Hello,

I am building an XML Serialization toolkit with a hibernate backend. We use simple runtime serialisation (XStream) without any schema files. When we try to serialize hibernated objects from query Results these objects are "more" than simple pojos. They habe been enhanced by the cglib framework to become hibernated. XStream serializes the full object tree of an object. For our situation this means that we get XML Elements like "isdirty" and "PersistentCollections" instead of Lists and so on...

At the moment we iterate through each object end copy the properties directly into a new "clean" pojo of the same type. This is kind of painfull and performance decreasing - especially within hierachies of large objects.

So finally here is my question: Can I disenhance a hibernated Object? Is there any possibility to remove the cglib Enhancement from a hibernated Object via the cglib oder hibernate API?

Thank you for listening.


Sven Hohlfeld

Hi,

you can turn off cglib enhancement using the file hibernate.properties containing one of the following lines (depending in your hibernate version):



Hope this helps.

Don't use lazy/proxy entities.
Collections are not CGLIB enhanced - they are simple Hibernate Collections API impls.

In every mapping file I use lazy=false. The problem exists though

Each collection holds a reference to the Session.
Maybe there's your problem.

Well this is one of the problems. While the simple objects get hibernated the cglib does a bytecode enhancement which completly alters the objecttree. The pojos still have the interface but under the hood there is more. This "more" is not needed during the serialization. I want to get rid of it. Maybe I should post an example of the resulting xml here?