The binding is done at compile time, so those fields which are not
annotated behaves exactly the same way.
I had written before an aspect that injected at construction and at
deserialization, actually I don't remember why I switched to this
style, maybe because is much simpler.
2005/12/13, Igor Vaynberg <[EMAIL PROTECTED]>:
> but even with @Before("get(@SpringBean * *)") you are still intercepting
> every field access, and using reflection to check if the SpringBean
> annotation is present. i am no aop expert, but that seems like overkill to
> me. i guess the proxy solution is really a cache to something like this. you
> do the lookup once, when you create the object, and then trade a small hit
> on your session size for cpu speed.
>
> -Igor
>
>
>
> On 12/13/05, Eduardo Rocha <[EMAIL PROTECTED]> wrote:
> >
> > Yes, intercepting every field access could hit performance, but I
> > don't think can be a very serious issue:
> >
> > @Before("get(@SpringBean * *)")
> > public void matchAnnotatedFields(JoinPoint thisJoinPoint) {
> >
> > Concerning transient fields, there is a declare error on annotated
> > fields which are not transient:
> >
> >
> @DeclareError("get(@wicket.contrib.spring.aspectj.SpringBean
> !transient * *)")
> > public static final String MUST_BE_TRANSIENT = "SpringBean annotated "
> > + "field must be transient.";
> >
> > 2005/12/13, Igor Vaynberg <[EMAIL PROTECTED]>:
> > > that should work if you declare your fields transient. but what is the
> > > performance hit? youd have to intercept every field access no?
> > >
> > > -Igor
> > >
> > >
> > >
> > > On 12/13/05, Eduardo Rocha <[EMAIL PROTECTED] > wrote:
> > > >
> > > > The semantic is "any time an annotated field is read, it is checked to
> > > > see if it is null, and if it is, instantiate it". I think this is OK
> > > > with this code, what do you think?
> > > >
> > > > 2005/12/13, Igor Vaynberg < [EMAIL PROTECTED]>:
> > > > > hmm
> > > > > what about stuff like this:
> > > > >
> > > > > UserDetachableModel { long userid; private UserService svc;
> transient
> > > User
> > > > > user; void attach() { user= svc.load(userid); }
> > > > >
> > > > > new DetachableModel(10, userService); where userService is a proxy
> to
> > > the
> > > > > user service bean.
> > > > >
> > > > > having these proxies means i can pass them into any object i want
> such
> > > as a
> > > > > detachable model or a data provider, and when those things are
> > > > > serealized/deserialized there is no problem.
> > > > >
> > > > > -Igor
> > > > >
> > > > >
> > > > >
> > > > > On 12/13/05, Eduardo Rocha < [EMAIL PROTECTED]> wrote:
> > > > > >
> > > > > > Igor,
> > > > > >
> > > > > > As I said in another post, proxies are not needed with AspectJ.
> > > > > >
> > > > > > 2005/12/13, Igor Vaynberg < [EMAIL PROTECTED]>:
> > > > > > > have a look here
> > > > > > >
> > > > > > >
> http://www.wicket-wiki.org.uk/wiki/index.php/Spring
> > > > > > >
> > > > > > > this explains both integration strategies and why the proxies
> are
> > > > > needed.
> > > > > > >
> > > > > > > -Igor
> > > > > > >
> > > > > > >
> > > > > > > On 12/13/05, Eduardo Rocha < [EMAIL PROTECTED]> wrote:
> > > > > > > > You are right. I will look at the current implementation to
> see if
> > > it
> > > > > > > > works like it is working for me.
> > > > > > > >
> > > > > > > > 2005/12/13, Igor Vaynberg <[EMAIL PROTECTED]>:
> > > > > > > > > automatic injection is not the problem. the problem is that
> > > injected
> > > > > > > > > dependencies cannot be serialized, thus the whole proxy
> > > approach.
> > > > > > > > >
> > > > > > > > > -Igor
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On 12/13/05, Eduardo Rocha < [EMAIL PROTECTED] >
> wrote:
> > > > > > > > > >
> > > > > > > > > > Spring 2.0 will bring support to objects which are not
> > > > > instantiated by
> > > > > > > > > > the container:
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > >
> > > > >
> > >
> http://www.theserverside.com/news/thread.tss?thread_id=38047
> > > > > > > > > >
> > > > > > > > > > Actually it is very similar with what I was doing, except
> that
> > > the
> > > > > > > > > > article uses a prototype (template) object in
> configuration,
> > > while
> > > > > I
> > > > > > > > > > am annotating each field, like wicket-contrib-spring does.
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
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