[Hibernate-issues] [Hibernate-JIRA] Commented: (HB-368) Allow proxies to load in session other than one that created them

[<leg...@at...>]

The following comment has been added to this issue:

     Author: Chris Nokleberg
    Created: Sat, 27 Sep 2003 3:58 PM
       Body:
FYI here is Gavin's comment on this issue:
http://www.mail-archive.com/hib...@li.../msg00041.html

> I guess, we *could* implement ThreadLocalSession internally in 
> Hibernate so that proxies and lazy collections _automatically_ pick up 
> a reference to the current Session. But I've so far resisted this 
> design. It doesn't work too well for collections, since they can't be 
> reassociated with a new Session without their current owner also being 
> reassociated. And there is no way to implement a backpointer from the 
> collection to its owner.

I'm interested in more detail regarding the collection problem. I have some ideas but need more information...

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Here is an overview of the issue:
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        Key: HB-368
    Summary: Allow proxies to load in session other than one that created them
       Type: Improvement

     Status: Closed
   Priority: Major
 Resolution: REJECTED

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.1

   Assignee: 
   Reporter: Chris Nokleberg

    Created: Sat, 27 Sep 2003 3:20 PM
    Updated: Sat, 27 Sep 2003 3:42 PM

Description:
For discussion, please see the following forum topic:
http://forum.hibernate.org/viewtopic.php?t=42

In summary, there are scenarios in which it one may want proxies to be resolved in a different session.

The attached patch adds a ThreadLocal to SessionFactoryImpl which keeps track of the last opened session. If a the session that created a proxy is closed when it comes time to initialize the proxy, the last opened session is used instead, unless it has been closed as well.



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