Re: Cascading matters: REFRESH

I think that this is a valid behavior to have

On Fri, Jul 4, 2008 at 1:23 AM, Fabio Maulo <[email protected]> wrote:

> Hi friend.
> This post is to use the collective memory (for future questions) to
> remember a behavior breaking-change difficult to find.
>
> Like you know with NH2.0.0 we have introduced some improvement about
> cascade.
> There is a special situation for "refresh" cascade using collection.
> Cascade "all" or "all-delete-orphan" include the "refresh".
> "refresh" mean that NH rereads the state of associated objects from the
> database when an object is passed to refresh.
>
> When the relation with the object is passed to refresh is an aggregation (a
> list for example) NH2.0.0 refresh all related objects inside the aggregation
> before refresh the aggregation owner.
> This feature mean:
> 1)same behavior of H3.2
> 2)at the end an old TODO, for cascade and events, was removed
> 3)fix NH-1362.
>
> Now what happen if we have something in sessionCache and another session
> delete an object of the collection and we use refresh ?
> (NHibernate.Test.Legacy.MasterDetailTest.CachedCollectionRefresh)
> When NH intent the refresh of each element of the aggregation an exception
> will throw because we are attempt to refresh a deleted entity.
>
> To prevent this situation we can't use "refresh" to define the cascade of
> the aggregation that mean we can't use "all".
> A possible combination is, for example : cascade="save-update,delete" or
> cascade="save-update,delete-orphan"
> Others combination can work but we must remember the exclusion of
> "refresh".
>
> I hope that the situation is not so usual but I know that the "all" and
> "all-delete-orphan" is very usual so the situation have a good probability
> to happen.
>
> --
> Fabio Maulo
> -------------------------------------------------------------------------
> Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> Studies have shown that voting for your favorite open source project,
> along with a healthy diet, reduces your potential for chronic lameness
> and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> _______________________________________________
> Nhibernate-development mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/nhibernate-development
>
>

-------------------------------------------------------------------------
Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
Studies have shown that voting for your favorite open source project,
along with a healthy diet, reduces your potential for chronic lameness
and boredom. Vote Now at http://www.sourceforge.net/community/cca08

_______________________________________________
Nhibernate-development mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/nhibernate-development