Hi all,

i am working in application where i have to create DTOs of my hibernate beans (POJO) for the other layers. The others layers can't
manipulate POJO directly just DTO. So, i am looking for a function which can make the same work like the populate or copyProperties
of the commons.BeanUtils. And we noticed another trouble. We don't know how to break the hibernate cycle copy. I mean when you
have some relationships father/child :

class Father() {
//some properties
Set chils = new HashSet();

....
}

class Child() {
//some properties
Father father;

}

Do we have to delete the father property in the child DTO too ? I hope you understand me.
Bye.

-- Sebastien --

i don't understand....an example would be good.

For example i have DTOs for my father and child classes :

class FatherDTO() {
//some properties
Object[] childs = null;

}

class ChildDTO() {
//some properties
FatherDTO father;

}

Noticed i am using Object[] array instead of Set because my DTOs are used in my Axis web services. Morever
i don't know how to map a Set in Axis wsdd. So how can i do for populating
my DTOs with a POJO. I am looking for this king of function :

Father pojoFather = hibernateSession.load(Father.class, fatherId);
FatherDTO dtoFather = new FatherDTO();
copyDTOForPOJO(dtoFather , pojoFather );

Max, do you what i mean now ? We make a function which uses reflexion but
the function is cycling because the relationship between a father and a chid.

well then you just need to write a function that can handle cycles ,)

sorry - i don't know from the top of my head something that does this automatically.

Can i delete all the relationships for avoiding the cycles ? I find this solution too hard because i am going
to delete all the databases constraints.

Sorry i noticed I post the wrong question. How can manage relationship
without using the Set object in the Father ?? For sample, the framework
Torque don't offer navigation both Father and Child. The Child can see
its father. But the Father can't see the its childs :

class Father() {
//Set childs; don't exist in Torque

}

class Child {
Father father;

}

Is it possible to generate that in Hibernate ? I am using Middlegen

yes - just make the relationship unidirectional.

Meaning don't generate the <set> mapping.....can't remember how that is done in middlegen..David?

I noticed that with Middlegen you can specify the relationship navigation. I am very happy to know that
because we can use right now our copy properties function.

For any readers etc. Middlegen can change the association attributes, multiplicity and activate/deactive direction using the mouse and keyboard. You hold either shift or cntrl and click then end of the relationship graphical line that you wish to change.