Glad to see it was just a misunderstanding. I was afraid you guys were
gonna tell me the world isn't flat ;)
Maurice
On 7/31/06, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> i wasnt suggesting setting the user on request cycle, i was suggesting
> keeping the id in session and letting requestcycle hold the cache for the
> request.
>
> i didnt realize websession has attach/detach, so this can be made simpler
>
> MySession extends WebSession {
> private long userid;
> private transient User user;
>
> setUser(User u) {
> userid=u.getid();
> user=u;
> }
>
> getUser() {
> if (user==null) {
> user=loaduserbyid(userid);
> }
> return user;
> }
>
> detach() {
> user=null;
>
> }
>
> -Igor
>
>
> On 7/31/06, Maurice Marrink <[EMAIL PROTECTED]> wrote:
> > > store is detached. second request comes in and it is dealing with stale
> data
> > > unless you reload the user object.
> > correct that is why you should use an imodel or come up with your own
> > attach detach strategy
> >
> > > also storing imodel in session wont work because session doesnt have an
> > > imodel slot so who is going to be responsible for detaching that model
> at
> > > the end of request?
> > session has an onattach and ondetach method you can use.
> >
> > Also the way i understand how the whole requestcycle stuff happens
> > (and i know you guys know way more about that then me) is that a new
> > requestcycleobject is created on every request by a factory so how is
> > the current user supposed to get set on the requestcycle?
> >
> > Don't get me wrong i am not criticizing you guys, i am just curious as
> > to how the internals of wicket operate.
> >
> > Maurice
> >
> > On 7/31/06, Igor Vaynberg < [EMAIL PROTECTED]> wrote:
> > > but we are talking about caching here. if you store the instance of the
> user
> > > you loaded in session that is fine for the request that loaded it. but
> what
> > > happens after that request ends? the session is closed, the instance you
> > > store is detached. second request comes in and it is dealing with stale
> data
> > > unless you reload the user object.
> > >
> > > also storing imodel in session wont work because session doesnt have an
> > > imodel slot so who is going to be responsible for detaching that model
> at
> > > the end of request?
> > >
> > > -Igor
> > >
> > >
> > >
> > > On 7/31/06, Maurice Marrink <[EMAIL PROTECTED]> wrote:
> > > >
> > > true, but shouldn't the lock on the session prevent that in like 95%
> > > of all the cases?
> > >
> > > Maurice
> > >
> > > On 7/31/06, Johan Compagner <[EMAIL PROTECTED]> wrote:
> > > > A session can be used by multiply threads/request
> > > > So it will be detached by those when they are finished.
> > > > So another request can be busy with it while another calls detach on
> it.
> > > >
> > > > johan
> > > >
> > > >
> > > >
> > > > On 7/31/06, Maurice Marrink < [EMAIL PROTECTED]> wrote:
> > > > > >i wouldn't recommend doing this in session because user entity will
> > > > > become detached, i >would instead do it in the requestcycle so the
> > > > > user is loaded once per request
> > > > > Yeah are you sure about this Igor? because we are also attaching our
> > > > > user object (hibernate object) to our session, lazy loading it
> > > > > whenever needed. And we have not noticed it getting detached before
> > > > > the end of the request. Mats i guess this also answers your question
> > > > > about if it is possible to put an imodel in the session. however if
> > > > > you are really concerned about the db access every time you could
> > > > > always store the team id in the session.
> > > > >
> > > > > Maurice
> > > > >
> > > > > On 7/31/06, Mats Norén < [EMAIL PROTECTED] > wrote:
> > > > > > On 7/31/06, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> > > > > > > i wouldnt recommend doint this in session because user entity
> will
> > > > become
> > > > > > > detached, i would instead do it in the requestcycle so the user
> is
> > > > loaded
> > > > > > > once per request
> > > > > >
> > > > > > It is? I've used a User-object in session and I haven't noticed
> that
> > > > > > it gets detached.... I guess I'll have to look into to that.
> > > > > >
> > > > > > Can I still have a getUser() method in Session that in turn uses
> the
> > > > code below?
> > > > > >
> > > > > > I think I saw an example (could have been in databinder) where a
> > > > > > IModel was stored in session. Is that an alternative?
> > > > > >
> > > > > > > ((MyRequestCycle)RequestCycle.get()).getUser();
> > > > > > >
> > > > > > > MyRequestCycle {
> > > > > > > private transient User user;
> > > > > > >
> > > > > > > getuser() { if (user==null) { user=loaduser(
> > > > session.get().getuserid()); }
> > > > > > > onendrequest() { user=null; }
> > > > > > > }
> > > > > > >
> > > > > > > -Igor
> > > > > > >
> > > > > >
> > > > > > /Mats
> > > > > >
> > > > > >
> > > >
> > >
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