NonContextual.of(instance.getClass()).inject(instance);

iow, exactly what's in the methods in NonContextualManager


On Wed, Nov 13, 2013 at 9:47 PM, John Sarman <[email protected]> wrote:

> Since the NonContextualManager is responsible for injection post
> construction and predestroying, what would you replace it with?
>
>
> On Wed, Nov 13, 2013 at 3:22 PM, Emond Papegaaij
> <[email protected]>wrote:
>
> > On Tue, Nov 12, 2013 at 11:32 PM, Igor Vaynberg <[email protected]
> > >wrote:
> >
> > > the point on INonContextualManager was to internalize NonContextual -
> > > in case cdi implementation provides a better way to perform
> > > non-contextual injection.
> > >
> >
> > I don't think that going to happen. Even if it does happen, I see no
> reason
> > why Wicket must be able to use that implementation specific way of
> > injecting objects. The current implementation works fine and is supported
> > by all CDI providers.
> >
> > now that NonContextualManager is @ApplicationScoped and
> > > CdiConfiguration does not have a setter for it this functionality is
> > > lost. and even if cdi configuration had a setter, there is no longer a
> > > guarantee that someone did not inject one and use it before a new one
> > > was set on the configuration. that is why these things were not
> > > managed by cdi in the initial code...
> > >
> >
> > That's what alternatives are for. But again: I see no reason to replace
> > NonContextual.
> >
> > I would like to remove NonContextualManager (and the interface) as I
> don't
> > see any added value.
> >
> > Best regards,
> > Emond
> >
> > On Mon, Nov 11, 2013 at 11:16 AM, John Sarman <[email protected]>
> > wrote:
> > > > Also Noncontextual.of is never used anywhere except in the Wicket CDI
> > > api,
> > > > so I disagree. It solely used by the NonContextualManager which is
> > > > ApplicationScoped and the BeanManager is injected.  The CdiCleanup
> also
> > > > uses it and is passed the BeanManager during configuration, both
> cases
> > do
> > > > not make it unnice since it is an internal api.
> > > >
> > > >
> > > > On Mon, Nov 11, 2013 at 2:11 PM, John Sarman <[email protected]>
> > > wrote:
> > > >
> > > >> Actually I just changed them back to the way Igor originally
> > implemented
> > > >> it.
> > > >>
> > > >>
> > > >> On Mon, Nov 11, 2013 at 2:10 PM, Emond Papegaaij <
> > > >> [email protected]> wrote:
> > > >>
> > > >>> Hi John,
> > > >>>
> > > >>> There is nothing wrong with looking up the BeanManager in a static
> > > >>> context.
> > > >>> It's just that the current implementation of
> > > >>> CDI.current().getBeanManager()
> > > >>> is broken in Weld. I expect this to be fixed soon. The workaround
> > moves
> > > >>> the
> > > >>> lookup to a single place and tries a portable JNDI lookup first.
> This
> > > will
> > > >>> work in all EE containers. More importantly, the user doesn't
> notice
> > > the
> > > >>> workaround at all.
> > > >>>
> > > >>> Your commit changes the signature of NonContextual.of. You are now
> > > >>> required
> > > >>> to pass in the BeanManager, which is not very nice, because
> > > NonContextual
> > > >>> is to do CDI injection in places where CDI can't do it for you. In
> > > these
> > > >>> places, you often don't have a BeanManager available. I think the
> > > >>> workaround should stay until the bug is fixed in Weld.
> > > >>>
> > > >>> Best regards,
> > > >>> Emond
> > > >>>
> > > >>>
> > > >>> On Mon, Nov 11, 2013 at 7:45 PM, John Sarman <[email protected]
> >
> > > >>> wrote:
> > > >>>
> > > >>> > Edmond,
> > > >>> > I updated the cdi code to not ever use the CDI.current().   I
> > > reworked
> > > >>> your
> > > >>> > test earlier to just inject the BeanManager and that properly
> > allows
> > > the
> > > >>> > multiple wars to see the InjectableTargets from a shared lib.   I
> > > could
> > > >>> > only conclude that CDI.current should not be called from a static
> > > >>> method,
> > > >>> > so instead of joining the weld team or submitting an issue, I
> just
> > > >>> removed
> > > >>> > that possibility from the code.  That latest code is in
> > > >>> > https://github.com/jsarman/wicket master branch. This also
> removed
> > > the
> > > >>> > need
> > > >>> > for the BeanManagerLookup workaround.
> > > >>> >
> > > >>> >
> > > >>> >
> > > >>> >
> > > >>> > On Mon, Nov 11, 2013 at 8:49 AM, John Sarman <
> [email protected]
> > >
> > > >>> wrote:
> > > >>> >
> > > >>> > > Nevermind, I should not write emails this early, without an
> > unsend.
> > > >>> > > Servlet A should see same BeanManager as Servlet B, if both
> > > servlets
> > > >>> are
> > > >>> > > deployed from same war file.  That is ApplicationScoped.
> > > >>> > >
> > > >>> > >
> > > >>> > > On Mon, Nov 11, 2013 at 8:47 AM, John Sarman <
> > [email protected]
> > > >
> > > >>> > wrote:
> > > >>> > >
> > > >>> > >> Ok, I read through your test code, so if you are saying that
> > > servlet
> > > >>> a
> > > >>> > >> gets same beanmanager as servlet b then yeah thats bad.
> > > >>> > >>
> > > >>> > >>
> > > >>> > >> On Mon, Nov 11, 2013 at 8:44 AM, John Sarman <
> > > [email protected]
> > > >>> > >wrote:
> > > >>> > >>
> > > >>> > >>> I was looking at your bug, but in the case you specified
> where
> > > the
> > > >>> > >>> cached BeanManager is passed, seems to be the correct
> behavior
> > > >>> because
> > > >>> > the
> > > >>> > >>> CdiConfiguration is ApplicationScoped.  The CDI class states
> > > this:
> > > >>> > >>> /**
> > > >>> > >>>      * Get the CDI BeanManager for the current context
> > > >>> > >>>      *
> > > >>> > >>>      * @return
> > > >>> > >>>      */
> > > >>> > >>>     public abstract BeanManager getBeanManager();
> > > >>> > >>>
> > > >>> > >>> So the cached BeanManager passed back is because it is
> accessed
> > > in
> > > >>> an
> > > >>> > >>> ApplicationScoped class.   ApplicationScoped != Wickets
> > > Application
> > > >>> > scope.
> > > >>> > >>>
> > > >>> > >>>
> > > >>> > >>>
> > > >>> > >>>
> > > >>> > >>>
> > > >>> > >>> On Mon, Nov 11, 2013 at 8:26 AM, Emond Papegaaij <
> > > >>> > >>> [email protected]> wrote:
> > > >>> > >>>
> > > >>> > >>>> You are right, InitialContext.lookup was returning null.
> I've
> > > >>> fixed it
> > > >>> > >>>> by falling
> > > >>> > >>>> back to CDI.current().getBeanManager() in that case. The
> > > >>> workaround is
> > > >>> > >>>> needed because of a very nasty bug in de Wildfly-Weld
> > > integration:
> > > >>> > >>>> https://issues.jboss.org/browse/WFLY-2481
> > > >>> > >>>>
> > > >>> > >>>> Best regards,
> > > >>> > >>>> Emond
> > > >>> > >>>>
> > > >>> > >>>> On Monday 11 November 2013 08:18:20 John Sarman wrote:
> > > >>> > >>>> > As far as the Test failing, I think the workaround code to
> > use
> > > >>> jndi
> > > >>> > >>>> first
> > > >>> > >>>> > may have caused the test to fail.  So far it seems that
> all
> > > the
> > > >>> > >>>> request
> > > >>> > >>>> > pull 50 is not in the 6 branch.
> > > >>> > >>>> > What forced the need for the workaround?
> > > >>> > >>>> >
> > > >>> > >>>> > John
> > > >>> > >>>> >
> > > >>> > >>>> > On Mon, Nov 11, 2013 at 8:00 AM, John Sarman
> > > >>> > >>>> <[email protected]> wrote:
> > > >>> > >>>> > > It is not a forced requirement, just an option for full
> > cdi
> > > >>> > >>>> injection.
> > > >>> > >>>> > >
> > > >>> > >>>> > >
> > > >>> > >>>> > > On Mon, Nov 11, 2013 at 3:50 AM, Emond Papegaaij <
> > > >>> > >>>> > >
> > > >>> > >>>> > > [email protected]> wrote:
> > > >>> > >>>> > >> Hi John,
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> I've just merged the pull request in the wicket-6.x
> > branch
> > > >>> (still
> > > >>> > >>>> under
> > > >>> > >>>> > >> experimental). The version still is 0.2-SNAPSHOT, as
> the
> > > >>> versions
> > > >>> > >>>> are
> > > >>> > >>>> > >> automatically increased on release. The reason I've
> > merged
> > > the
> > > >>> > pull
> > > >>> > >>>> > >> request is to give us all a common baseline to discuss.
> > > Could
> > > >>> you
> > > >>> > >>>> please
> > > >>> > >>>> > >> verify I did not break anything merging it? All
> testcases
> > > but
> > > >>> one
> > > >>> > >>>> pass.
> > > >>> > >>>> > >> The
> > > >>> > >>>> > >> failing testcase
> (CdiConfigurationTest.testMultiAppLoad)
> > > >>> tries to
> > > >>> > >>>> access
> > > >>> > >>>> > >> the
> > > >>> > >>>> > >> BeanManager from an unmanaged thread, resulting in an
> > NPE.
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> I've already noticed one aspect I do not like: the
> > > >>> requirement to
> > > >>> > >>>> > >> annotate
> > > >>> > >>>> > >> your app with @WicketApp. With a Producer method, it
> > > should be
> > > >>> > >>>> possible
> > > >>> > >>>> > >> to use the actual application names, without the
> > > requirement
> > > >>> to
> > > >>> > >>>> duplicate
> > > >>> > >>>> > >> them on your application class.
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> Best regards,
> > > >>> > >>>> > >> Emond
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> On Sunday 10 November 2013 16:44:28 John Sarman wrote:
> > > >>> > >>>> > >> > Edmond,
> > > >>> > >>>> > >> > On July, I worked vigorously to get to the 0.3
> > snapshot,
> > > >>> which
> > > >>> > >>>> was
> > > >>> > >>>> what
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> I
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > consider the first beta ready version of the move to
> > > cdi1.1.
> > > >>> >  The
> > > >>> > >>>> 0.1
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> and
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > 0.2 snapshot was 0.1, getting it to work and learning
> > > how to
> > > >>> > >>>> request
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> pull
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > requests.  0.2 was adding some slight fixes and
> > testing.
> > > >>>  After
> > > >>> > >>>> that
> > > >>> > >>>> I
> > > >>> > >>>> > >> > realized that I was treating the @ApplicationScoped
> as
> > > same
> > > >>> > >>>> scope that
> > > >>> > >>>> > >> > ThreadContext gives to a Wicket App.  That is
> entirely
> > > >>> wrong.
> > > >>> >  So
> > > >>> > >>>> the
> > > >>> > >>>> > >> > previous version only properly supports at most 1
> > Wicket
> > > >>> app,
> > > >>> > the
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> second
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > could override the Configuration of the first (not
> > > >>> acceptable).
> > > >>> > >>>>  In
> > > >>> > >>>> my
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> 0.3
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > version, I added the code to prevent that, by using
> the
> > > >>> Wicket
> > > >>> > >>>> app
> > > >>> > >>>> key
> > > >>> > >>>> > >> > generated as the key to the configuration properties
> > for
> > > an
> > > >>> > app.
> > > >>> > >>>> This
> > > >>> > >>>> > >> > allows for multiple Wicket apps to be deployed in a
> > > Servlet.
> > > >>> > >>>> However,
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> for
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > whatever reason, that checkin could not properly
> merge
> > > into
> > > >>> > the 7
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> branch.
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> >  I have to remedy this even if I just have to copy
> > paste
> > > the
> > > >>> > >>>> code, to
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> make
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > git happy ( I blame myself, not Git).  In the
> > meantime, I
> > > >>> > >>>> recommend
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> looking
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > at my latest (albeit broken) pull request
> > > >>> > >>>> > >> > https://github.com/apache/wicket/pull/50 and port
> that
> > > >>> > version.
> > > >>> > >>>> It
> > > >>> > >>>> adds
> > > >>> > >>>> > >> > thorough testing, fixes the multiple deploy issue,
> > > >>> reintroduces
> > > >>> > >>>> the
> > > >>> > >>>> > >> > auto
> > > >>> > >>>> > >> > Conversation, and extends the ConversationalComponent
> > by
> > > >>> > >>>> introducing
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> the
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > @Conversational, which by default works the same as
> the
> > > >>> Cdi-1.0
> > > >>> > >>>> > >> > ConverationalComponent, but also allows the
> propagation
> > > and
> > > >>> > >>>> auto
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> feature to
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > be modified for an Object that uses the annotation,
> > > without
> > > >>> > >>>> affecting
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> the
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > global defaults set during Configuration.  The 0.3
> also
> > > >>> > >>>> introduces
> > > >>> > >>>> the
> > > >>> > >>>> > >> > CdiWicketFilter.  The CdiWicketFilter allows the
> > > >>> configuration
> > > >>> > >>>> settings
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> to
> > > >>> > >>>> > >>
> > > >>> > >>>> > >> > be managed in web.xml.  It also instantiates the
> > > >>> > >>>> WicketApplication
> > > >>> > >>>> > >> > using
> > > >>> > >>>> > >> > Cdi so that the Application is injected before the
> > init()
> > > >>> > method.
> > > >>> > >>>> The
> > > >>> > >>>>
> > > >>> > >>>
> > > >>> > >>>
> > > >>> > >>
> > > >>> > >
> > > >>> >
> > > >>>
> > > >>
> > > >>
> > >
> >
>

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