Hmmmm I understand the issue/feature now... where by if the page
remains open then the session is kept alive by the ajax request which
is a feature and it could be argued that for almost all cases this
would be what is required. I believe there is a use case for wanting
the session to expire after a predefined interval though - thinking
secure apps such as banking or email. I know my bank irritates the
hell out of me by "logging me off" after a period of inactivity though
this might not be implemented via HttpSession but instead they persist
a timestamp of the last request and compare with the current request
time.
My app requirements can be changed to fit the current method but I can
imagine that there would be need for other projects to implement
expiration as defined above.
--Ewan
On Jul 1, 5:20 pm, David Pollak <feeder.of.the.be...@gmail.com> wrote:
> Ewan,
>
> It seems that you've done your tests with a browser open to a page in your
> Lift app. It seems to me that you don't want to time out a session unless
> the user's browser is no longer looking at a page in the app. Is this in
> line with your expectations/use case?
>
> Thanks,
>
> David
>
>
>
> On Wed, Jul 1, 2009 at 5:08 AM, Ewan <ehar...@gmail.com> wrote:
>
> > My use case is that I want to "save" anonymous users' (users that have
> > not logged on or registered) baskets in the session and don't care if
> > they are removed after a period of inactivity. In fact I would like
> > the session to be expired after a while to encourage the user to sign
> > up which if they do they get the benefit that the basket is persisted.
>
> > --Ewan
>
> > On Jul 1, 12:59 pm, "marius d." <marius.dan...@gmail.com> wrote:
> > > You answered your own question :) ... Yes that is Lift GC mechanism.
> > > You can of course turn it off in Boot by calling ....
> > > LiftRules.enableLiftGC=false but I would not recommend it.
>
> > > Is there a real use case why you need this or just tying to figure out
> > > how Lift works ?
>
> > > Br's,
> > > Marius
>
> > > On Jul 1, 2:42 pm, Ewan <ehar...@gmail.com> wrote:
>
> > > > Thanks Marius
>
> > > > I basically wound the session timeout down to 5 mins in the web.xml
> > > > and left it for about 30 mins but the sessionVar was still full. Even
> > > > after some hours of no use it was the same. There is this constant
> > > > ajax_request pinging going on - related?
>
> > > > -- Ewan
>
> > > > On Jul 1, 12:32 pm, "marius d." <marius.dan...@gmail.com> wrote:
>
> > > > > LiftSession is bound to HttpSession through
> > HttpSessionBindingListener
> > > > > and HttpSessionActivationListener
>
> > > > > This means that when the HTTP session terminates LiftSession will
> > also
> > > > > terminate. To verify your SessionVar that the session was purged you
> > > > > can implement
>
> > > > > override protected def onShutdown(session: CleanUpParam): Unit = {
> > > > > ...
>
> > > > > }
>
> > > > > where in case of SessionVar the session parameter is really a
> > > > > LiftSession.
>
> > > > > The LiftSession timeout is given by
> > > > > HttpSession.getMaxInactiveInterval ... if that period is exceeded the
> > > > > LiftSession is unbound from the HttpSession. Does not necessary means
> > > > > that the HttpSession is removed by container ust that LiftSession is
> > > > > terminated.
>
> > > > > But is the problem the fact that HttpSession expired but you still
> > had
> > > > > the context in the SessionVar?
>
> > > > > Br's,
> > > > > Marius
>
> > > > > On Jul 1, 12:47 pm, Ewan <ehar...@gmail.com> wrote:
>
> > > > > > I have recently started using a SessionVar and am quite happy to
> > have
> > > > > > the session wiped after some predefined interval. As an experiment
> > I
> > > > > > changed the session timeout in the web.xml a la Java Servlets but
> > this
> > > > > > had no effect running on jetty and since I have read that a
> > SessionVar
> > > > > > is not just a wrapper around javax.servlet.http.HttpSession. My
> > > > > > question is then how can I configure the timeout interval?
>
> > > > > > -- Ewan
>
> --
> Lift, the simply functional web frameworkhttp://liftweb.net
> Beginning Scalahttp://www.apress.com/book/view/1430219890
> Follow me:http://twitter.com/dpp
> Git some:http://github.com/dpp
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