We still got this problem. Is there anyone who know anything about this?
If I read persistent fields from one page, why do persistent fields
(with the same type) from other pages get read from the session
aswell?
This is a problem when working with hibernate.
Thanks!
/Ted
2007/11/27, Olof Næssén <[EMAIL PROTECTED]>:
> I've stumbled on a problem with implementing a custom persistent field
> strategy that uses Hibernate. As the the application uses Hibernate I
> would like to use Hibernate entities as models, but this causes a
> problem when storing entities in the session as our Hibernate session
> is created per request and the HTTP session's stored values live
> longer than a request. Somewhere the entities need to be merged so
> they get re-attached to the new session.
>
> Our solution has been to implement a custom persistent field strategy
> that merges an entity before returning the persistent value from the
> HTTP session. This approach worked just fine until we added two
> different pages that stored the same entity in the HTTP session. At
> some point the two different values are read from the HTTP session
> causing one of them to be overwritten even though they reside in
> different pages.
>
> What I don't understand is when the persistent values are read, that
> is when PersistentFieldStrategy.gatherFieldChanges is actually called.
> It seems that values are sometimes read even though a page is visited
> that lacks persistent fields or that
> PersistentFieldStrategy.gatherFieldChanges is called for a different
> page than the visited page.
>
> Has this something to do with the implementation of the gathering of
> persistent field information? Is perhaps the usage of a custom
> persistent field strategy the wrong approach? At the moment I'm a bit
> confused and would appreciate any help and or pin points I can get.
>
> /Olof
>
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/ted
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