Hi Folks,

I want to have mapped POJOs with a parameterized constructor in order to get Good Citziens (Objects with correct state - Not Nullable DB Fields).

First of all I read in Hibernate2 Reference that a Default Constructor is necessary for hibernate. Is there any way to get around this behavior?

Thx
Toby

Imagin
A has a reference to B
B has a reference to A

How to do that with good citizens strategy. We're not talking about components but objects.

Do you really thing that cyclic references are a good desing technique?

In fact the strategy avoids to run into the problems with nullable datbase fields and safes us form adding hundrets of if != null assertions before persisting to database.

Yes, I'm positive.
As I told you, I think this is a design error to have such circular deps between components, and having constructor deps design seems better than bean deps design (Pico container tries to demonstrate that). But we're talking about object level design : this is called bidirectional relationship.


Hum, what is the difference between that

and


Same number of if != null.

BTW, You can set to a private level your POJO setters, Hibernate can deal with that. Thus, common users must use your parameterized constructor.

Of course you have to code your assertions, but with a assertive constructor you forbidd to get an object with incorrect state. It can be a ticking bomb leading to incorred data. All I want to do is to make it simple not not simply to follow a desing priciple blindly.



Ah! Then I now what to have to do.