How to prevent a class from being enhanced $$EnhancerByCGLIB

javatwo · **Joined:** Tue Sep 13, 2005 2:01 am **Posts:** 137

I have a ManyToOne Mapping (fetch EAGER), but the class is enhanced using CGLIB.

@ManyToOne(fetch=FetchType.EAGER)
@JoinColumn(name="animalId)
public Animal getAnimal() {
...
}

the Animal instance becomes Animal$$EnhancerByCGLIB$$9877ae. As a result, I can not use instanceof or cast, for example,

Animal a = getAnimal();
if (a instanceof Dog) {
....
}

I know it is a Dog, but I can not cast it, like
Dog d = (Dog)a;

How to prevent Animal class from being enhanced? I need to use Animal instead of Animal$$EnhancedByCGLIB$$...

Thanks for help!
Dave

denis.etienne · **Posted:** Sun Sep 10, 2006 1:50 am

I am not using annotations, so I edit mappings manually.

At the class level, you can use lazy=false in a mapping to prevent Hibernate from using a proxy.

With annotations:
@org.hibernate.annotations.Proxy(lazy = false)

melix · **Joined:** Thu Aug 31, 2006 4:05 am **Posts:** 5

This is not really an Hibernate problem, but a Java design one. Make use of interfaces.

Code:

class Animal implements IAnimal {
...
}

class Dog extends Animal implements IDog {
...
}

interface IDog extends IAnimal {
...
}

Then your cast will look like this :

Code:

if (animal instanceof IDog) {
   IDog dog = (IDog) animal;
   ...
}

Hope this helps ;)