Igor made it quite easy to add your own way to inject things (not just
SpringBeans). You just implement your own IObjectLocatorFactory and
extend
the SpringInjector to use this one.
Enclosed is some code which uses jakarta commons-attributes to do the
same
thing as JDK1.5 annotations does with javadoc (the code is not tested
but
it is fairly simple so it should work).
BTW: Maybe the ProxyInjector could take an array of
IObjectLocatorFactory
and takes the first one which does not return null. This way you could
combine different IObjectLocatorFatories in one place?
Christian
On Fri, 11 Nov 2005 14:34:28 -0600, Ryan Sonnek <[EMAIL PROTECTED]>
wrote:
> I would be very interested in a 1.4 port of this. Do you think it
> could use the same annotation based approach, but using Qdox to
> process instead of the built in 1.5 annotation functionality?
>
> On 11/11/05, Christian Essl <[EMAIL PROTECTED]> wrote:
>> The code realy looks good.
>>
>> Concerning the Proxy. For the cglib proxy you should definately not
>> forward the call to finalize(), because when the proxy gets GC it
will
>> call finalize() on the target and that is not what you want. I think
>> same
>> reasons apply for the other Object methods except equals, hasCode and
>> toStrign. JDK proxies do not forward them as well.
>>
>> Serializing: CGLIB proxies. I think the problem if you just plainly
>> serialize them withotu writeReplace/readResolve is that if the proxy
>> gets
>> desiarialized in another VM than the dynamically create class of
CGLIB
>> could not be yet there. So this could make problems in clusters etc.
>>
>> Christian
>>
>> On Fri, 11 Nov 2005 00:50:13 -0800, Igor Vaynberg
>> <[EMAIL PROTECTED]> wrote:
>>
>> > more refactoring/tests and some new things:
>> >
>> > SpringWebApplicationFactory - which will pull the webapplication
>> subclass
>> > out of spring application context
>> >
>> > SpringInjector/SpringWebApplica tion - make it very simple to
inject
>> > objects
>> > using @SpringBean annotation with lazy-init proxies
>> >
>> > SpringWebPage - autoinitailizes its subclasses using the
>> SpringInjector
>> >
>> > I also deprecated all the old stuff and moved it into
>> > wicket.contrib.spring.old package. The new stuff is the
>> > "official/supported/standard/whateveryouwanttocallit" way to do
spring
>> > integration.
>> >
>> > currently we only provide an easy way to inject objects using jdk5
>> > annotations. it is possible to create a jdk1.4 object locator
>> factories,
>> > but
>> > there are many options as to how to store metadata/do the lookup.
if
>> > someone
>> > is interested in this please let me know and we can discuss some
ways
>> of
>> > doing this.
>> >
>> > As always, any feedback is greatly appreciated.
>> >
>> > -Igor
>> >
>> >
>> >
>> > On 11/9/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
>> >>
>> >> heh, looks like we pretty much did the same thing. my proxies
arent
>> as
>> >> advanced as yours, dont know if that a plus or a minus at this
>> point. I
>> >> liked the lazyinitproxy interface so i just added that to my code.
>> >>
>> >> im attaching the code to make it easier to find.
>> >>
>> >> -Igor
>> >>
>> >> On 11/9/05, Christian Essl <[EMAIL PROTECTED]> wrote:
>> >> >
>> >> > Unfortunately the public cvs is late so I can't see your changes
>> yet.
>> >> > Anyway before I've read this mail I started on reworking the
>> proxing
>> >> > code
>> >> > (attached). SerializableLazyProxyCreator is the only thing with
>> >> content
>> >> > the others are interfaces and one (basic) test.
>> >> >
>> >> > There are quite some changes:
>> >> > - uses as now as said yesterday an ObjectResolver (I've to check
>> with
>> >> > your
>> >> > refactoring)
>> >> > - fixed differend bugs in my original writeReplace/resolve code
of
>> the
>> >> > CGLIB proxy
>> >> > - JDK and CGLIB proxies implement LazyInitProxy. This can be
>> useful to
>> >> > see
>> >> > if an object is already a lazy init proxy and to get the
>> >> ObjectResolver
>> >> > from it (the cglib intercepors don't have to be serialziable
>> anymore).
>> >> > - JDK and CLGIB: added handling of equals/hashCode methods
>> (compares
>> >> the
>> >> > proxy for identity - instead of forwarind to the target)
>> >> > - CGLIB: truned of the forward of the other Object methods to
the
>> >> target
>> >> > (especially finalize()) - exactly like for JDK proxies
(toString()
>> is
>> >> > forwarded)
>> >> > - JDK proxies: better method invocation exception handling
>> >> > - JDK and CGLIB: when the result of a method call is the target
>> itself
>> >> > it
>> >> > returns the proxy (at least one point of leaking of the target
can
>> be
>> >> > excluded)
>> >> > - I don't serialize the class but the class name and get it from
>> the
>> >> > context ClassLoader - is this ok?
>> >> > - and finally all is now in one class which automatically makes
>> >> either a
>> >> > cglib or class proxy (don't know wheter this is good)
>> >> >
>> >> > There is also a rudimentary test case, which however only tests
the
>> >> > CGLIB
>> >> > thing. There are also some println statements still in the code
>> (it is
>> >> > hard to properly unit test the writeReplace/readResolve
methods).
>> >> >
>> >> > Christian
>> >> >
>> >> > On Wed, 9 Nov 2005 00:20:32 -0800, Igor Vaynberg <
>> >> > [EMAIL PROTECTED]>
>> >> > wrote:
>> >> >
>> >> > > round 1 of refactoring is in. its much more elegant now.
feedback
>> >> > please.
>> >> > >
>> >> > > -Igor
>> >> > >
>> >> > >
>> >> >
>> >> >
>> >>
>> >>
>>
>>
>>
>> --
>> Christian Essl
>>
>>
>>
>>
>>
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