[CTJUG Forum] Re: Hibernate guru's

Thu, 04 May 2006 03:54:54 -0700

The plot thickens…

 

Is it really necessary to detach the object graph from the session?

I’m using the session-per-conversation pattern (long conversation), because my Swing gui application doesn’t work well Hibernate session-per-request pattern.

 

Setting the IDs to null is also a problem, because I’m using long (primitive type) for the IDs.

When I set the ID to -1, I get a NonUniqueObjectException.

 

What to do…what to do…

 

 

From: [email protected] [mailto:[email protected]] On Behalf Of Noel Grandin
Sent: 04 May 2006 10:09 AM
To: [email protected]
Subject: [CTJUG Forum] Re: Hibernate guru's

 

Hmmm, detaching the object will make it "new" from hibernate's point of view.
Then if you set the IDs to null, and persist it, it should create a new object graph.

But I'm not sure how you would make this recurse down an object graph.
It would probably depend on what the cascade attribute in the mapping file was set to.

On 5/4/06, Enrico Goosen < [EMAIL PROTECTED]> wrote:

Is it possible to clone and persist an object graph in Hibernate?

I've come across the org.hibernate.util.SerializationHelper 
which can be used to clone an object graph, but I don't think that it can be persisted, since its id's will be the same as the original object graph.


 



Any
ideas? 



 



Enrico Goosen



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