Probably what you need is catch the StaleObjectStateException and
session.Merge to reattach entities to the new session (without use the
interceptor because you must do it with new fresh session).
2008/10/1 Stefan Sedich <[EMAIL PROTECTED]>
>
> Not quite sure I get you,
>
> I thought the whole point was to tell the user that the record they
> are viewing has been changed, i.e. two users opened the same version
> and one saved before the other, I then present a reload link which
> allows the user to reload the record and edit again.
>
> I do this by storing the Version in a hidden field on the page, and
> setting it again on the entity, which obviously doesn't work without
> the interceptor. I could just set all the entities properties and call
> an update without first selecting the entity which would work but for
> objects with child collections it seems to mess things up so I do a
> select first.
>
> I guess I will keep with the interceptor as it seems to work for me, I
> just thought this would be easier than this.
>
>
> Cheers
>
> On Wed, Oct 1, 2008 at 10:13 PM, Fabio Maulo <[EMAIL PROTECTED]> wrote:
> > Setting the version from GUI ?
> > Do you are setting the ID from GUI too ?
> > version for persistence-meaning must absolutely not available for
> read-write
> > in the GUI.
> > As I said, if you need something for business meaning you need another
> > property.
> >
> >
> > 2008/10/1 Stefan Sedich <[EMAIL PROTECTED]>
> >>
> >> Still confuses me a little bit atm maybe I have had a long day but how
> >> is it going to help having a version for optimistic locking when I
> >> cannot set the version from a value stored with the GUI, I always
> >> thought this is how you would handle it.
> >>
> >> I will research to find a demo, is there any real demos out there
> >> doing what I wan't?
> >>
> >> On Wed, Oct 1, 2008 at 9:36 PM, Stefan Sedich <[EMAIL PROTECTED]>
> >> wrote:
> >> > Ok got my interceptor working, bit raw convert from the Hibernate one
> >> > I found but does what I wan't it to now, selects the version back from
> >> > the DB and does it correctly how I would like it to, thoughts?
> >> >
> >> > public override bool OnFlushDirty(object entity, object id, object[]
> >> > currentState, object[] previousState, string[] propertyNames,
> >> > NHibernate.Type.IType[] types) {
> >> > ISessionImplementor sessimpl =
> >> > _session.GetSessionImplementation();
> >> > IEntityPersister persister =
> >> > sessimpl.GetEntityPersister(entity);
> >> >
> >> > EntityMode mode =
> >> > _session.GetSessionImplementation().EntityMode;
> >> >
> >> > if(persister.IsVersioned) {
> >> > object version = persister.GetVersion(entity, mode);
> >> > object currentVersion =
> >> > persister.GetCurrentVersion(id, sessimpl);
> >> >
> >> > if (!persister.VersionType.IsEqual(currentVersion,
> >> > version))
> >> > throw new
> >> > StaleObjectStateException(persister.EntityName, id);
> >> >
> >> > }
> >> >
> >> > return base.OnFlushDirty(entity, id, currentState,
> >> > previousState, propertyNames, types);
> >> > }
> >> >
> >> > On Wed, Oct 1, 2008 at 9:19 PM, Fabio Maulo <[EMAIL PROTECTED]>
> >> > wrote:
> >> >> 2008/10/1 Stefan Sedich <[EMAIL PROTECTED]>
> >> >>>
> >> >>> So basically passing the version from my UI layer and setting it is
> >> >>> unsupported?
> >> >>
> >> >> No, it is understandable.
> >> >> As ID, version don't have business-meaning so you don't need to pass
> >> >> the
> >> >> version in your DTO because the version have only
> persistence-meaning.
> >> >> NH
> >> >> manage the version for optimistic-locking. The timestamp work only
> >> >> because
> >> >> it not depend from previous value (NH override any thing you are
> >> >> assigning).
> >> >> If you change the version by yourself you must manage
> >> >> optimistic-locking by
> >> >> yourself.
> >> >>
> >> >>>
> >> >>> Does anyone have any suggestions on how this is achieved?
> >> >>> I am yet to find anything out there.
> >> >>
> >> >> Yes. Don't touch the version and let NH do it for you.
> >> >> The other option is to have 2 "version" properties. One for your
> >> >> business
> >> >> meaning and the other for persistence-meaning (the first read-write
> the
> >> >> second nosetter).
> >> >> --
> >> >> Fabio Maulo
> >> >>
> >> >> >>
> >> >>
> >> >
> >> >
> >> >
> >> > --
> >> > Stefan Sedich
> >> > Developer
> >> > Microsoft Certified Professional (MCP)
> >> >
> >>
> >>
> >>
> >> --
> >> Stefan Sedich
> >> Developer
> >> Microsoft Certified Professional (MCP)
> >>
> >>
> >
> >
> >
> > --
> > Fabio Maulo
> >
> > >
> >
>
>
>
> --
> Stefan Sedich
> Developer
> Microsoft Certified Professional (MCP)
>
> >
>
--
Fabio Maulo
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