or a JNDIAnnotation, anything is possible with this approach.
Let me try and get some of it going tonight and we can move from there.
-Igor
On 11/7/05, Christian Essl <[EMAIL PROTECTED]> wrote:
>
> I think there should be both of your implementations.
>
> IMO the constructor based impl should have the protected doInject
> method,
> because to me it seems to be the easiest way to inject manually
services
> in the constructor without the need to manually proxy them.
>
> Yes with cglib we'll hit the final problem. I think - don't know -
we'll
> need also a default constructor. Anyway spring runs into the same
> problem
> if it uses ie transaction proxies because spring does also use cglib
for
>
> non interface based AOP. Maybe use spring AOP directly, which is well
> tested and performend.
>
> To me it would be fine to only use interfaces, because in the end
those
> things are services I want to replace for mocking, remoting or
> whatsoever.
> So interfaces are a good (recomended) practice.
>
> By the way we could also create an EJBInjection annotation.
>
> Christian
>
>
>
> On Mon, 7 Nov 2005 16:22:02 -0800, Igor Vaynberg
<[EMAIL PROTECTED]
> >
> wrote:
>
> > but using that same idea, there is nothing stopping you from
creating
> a
> > subclass that calls the decorating factory from the constructor.
> >
> > So some of these init proxies are going to have to be cglib proxies?
> We
> > can
> > check if the field's type is an interface, and if so we can create a
> > regular
> > proxy, but if its not we try to create a cglib proxy? Do we hit the
> same
> > final method drawbacks?
> >
> > -Igor
> >
> >
> > On 11/7/05, Christian Essl <[EMAIL PROTECTED]> wrote:
> >>
> >> That's right. That's propably the cleanest way and you can use it
on
> >> each
> >> component.
> >>
> >> The problem why I came up with the constructor aproach initially
was
> >> that
> >> generally all the subcomponents are created and setup in the
> >> constructor.
> >> And it would than be IMO more wicket like if you can also inject
the
> >> services directly in the constructor, witout breaking up the setup
of
> >> the
> >> subcomponents between the constructor and some setters.
> >>
> >> IMO this is a general problem with setter based DI and hierarchical
> >> structures.
> >>
> >> Christian
> >>
> >> On Mon, 7 Nov 2005 15:16:53 -0800, Igor Vaynberg
> >> <[EMAIL PROTECTED]>
> >> wrote:
> >>
> >> > but why not replace every references thats annotated as a bean
with
> a
> >> > proxy
> >> > that only initializes itself as opposed to the entire class? that
> way
> >> you
> >> > dont even need the doinjection() method in the class and its a
lot
> >> safer.
> >> >
> >> > I would even put this "decoration" into a separate factory so
that
> the
> >> > page
> >> > stays a simple dumb pojo with some annotations on it.That way you
> can
> >> > have a
> >> > factory that pulls dependencies out of spring, or out of our
> builtin
> >> > metadata system, or out of somewhere else.
> >> >
> >> > code would look something like this:
> >> >
> >> > MyPage page=SpringDecorator.decorate(new MyPage(a,b,c));
> >> >
> >> > this would look like this:
> >> >
> >> > SpringDecorator.decorate (Page page) {
> >> > for each field with SpringBean annotation in page
> >> > set value to a new SpringDepdencyProxy
> >> > end
> >> > return page;
> >> > }
> >> >
> >> > and the SpringDependencyProxy would look like this:
> >> >
> >> > transient targetobject;
> >> >
> >> > if (targetobject is null) {
> >> > locate spring context and set targetobject to the lookup
> >> > }
> >> > forward call to targetobject;
> >> >
> >> >
> >> > this way the class need not be aware of the fact that its
decorated
> >> with
> >> > proxies or implement anything special. the proxies get serialized
> and
> >> > deserialized normally.
> >> >
> >> > -Igor
> >> >
> >> >
> >> > On 11/7/05, Christian Essl <[EMAIL PROTECTED] > wrote:
> >> >>
> >> >> Unfortunately I think this does not work.
> >> >>
> >> >> Actually cglib creates at runtime a subclass where you can
> override
> >> >> methods and as with any java code you can not override final (or
> >> >> private)
> >> >> methods. So when a non overridable method is called on the proxy
> it
> >> is
> >> >> not
> >> >> possible to delegate it and any state changes will only happen
in
> the
> >> >> proxy and not in the proxied (real) page. On the other hand if
the
> >> >> proxied
> >> >> instance calls one of its methods they will only effect its
state
> and
> >> >> not
> >> >> the state of the proxy.
> >> >>
> >> >> Because of this and because the cglib proxy as a subclass also
> >> carries
> >> >> everything constructed in the cunstructor of the superclass I do
> not
> >> >> realy
> >> >> like cglib proxies.
> >> >>
> >> >> But why not make it something like this (pseudo code - not
> tested):
> >> >>
> >> >> public class AbstractSpringAwarePage extends WebPage
> >> >> {
> >> >> public AbstractSpringAwarePage()
> >> >> {
> >> >> super();
> >> >> doInjection();
> >> >> }
> >> >>
> >> >> private final void readObject( java.io.ObjectInputStream in)
> throws
> >> >> IOException,
> >> >> ClassNotFoundException
> >> >> {
> >> >> in.defaultReadObject();
> >> >> //do for fields only now
> >> >> Class cl = this.getClass();
> >> >> while(cl != null && !AbstractSpringAwarePage.class.equals(cl)){
> >> >> Field[] fields = cl.getDeclaredFields();
> >> >> for(final Field field:fields){
> >> >> //if field has spring annotation and it has a declaring class as
> >> >> interface
> >> >>
> >> >> //create a proxy
> >> >> InvocationHandler iH = new InvocationHandler(){
> >> >> private transient Object _target;
> >> >> public Object invoke(Object proxy, Method method, Object[]
> >> >> args) throws Throwable
> >> >> {
> >> >> if(_target == null){
> >> >> doInjection();
> >> >> _target = field.get(AbstractSpringAwarePage.this);
> >> >> }
> >> >> return method.invoke(_target, args);
> >> >> }
> >> >> };
> >> >> Class proxyClass = field.getDeclaringClass();
> >> >> Object serviceProxy = Proxy.newProxyInstance(
> >> >> Thread.currentThread().getContextClassLoader(),
> >> >> new Class[]{proxyClass}, iH);
> >> >> ///////////////
> >> >> //assign serviceProxy to field
> >> >> }
> >> >> cl = cl.getSuperclass();
> >> >> }
> >> >> }
> >> >>
> >> >> /**
> >> >> * Override to load and assign custom beans. WARNING IS CALLED
FROM
> >> THE
> >> >> CONSTRUCTOR
> >> >> * DO NOT DEPEND ON STATE SET IN THE CONSTRUCTOR. DO NOT CALL
> METHODS
> >> >> WHICH DEPEND
> >> >> * ON INSTANCE STATE. DO NOT LET LEAK A REFERNCE TO THIS INSTANCE
> OUT.
> >> >> */
> >> >> protected void doInjection()
> >> >> {
> >> >> // Default implementation as Igor has.
> >> >> }
> >> >> }
> >> >>
> >> >>
> >> >> Sure this is not DI. It also does not provide AOP,
> >> livecylcle-management
> >> >> etc as a container does. It is also not elegant with the
> constructor
> >> >> calling the doInjection() method and it's magic.
> >> >>
> >> >> However it is sugar for lookup. ie:
> >> >>
> >> >> class MyPage(){
> >> >> @SpringBean("customerdao")
> >> >> protected CustomerDAO _customerDao; //no getter/setter
> >> >>
> >> >> public void someWhere(){
> >> >> _mydao.getCustomer("id");
> >> >> }
> >> >> }
> >> >>
> >> >> during testing:
> >> >>
> >> >> MyPage page = new MyPage(){
> >> >> protected void doInjection(){
> >> >> _customerDao = new MockDAO();
> >> >> }
> >> >> };
> >> >>
> >> >> And you have the service ready in the constructor in case you
want
> to
> >> >> give
> >> >> it further to a component you construct in the constructor.
> >> >>
> >> >>
> >> >>
> >> >> On Mon, 7 Nov 2005 12:27:12 -0800, Igor Vaynberg
> >> >> <[EMAIL PROTECTED]>
> >> >> wrote:
> >> >>
> >> >> > yes. but instead of doing the injection right away the proxy
> would
> >> do
> >> >> > injection-on-first-access.
> >> >> > that way you get lazy injection and strongly typed pages.
> >> >> >
> >> >> > so you would annotate getter functions with the @SpringBean
> annot,
> >> and
> >> >> > the
> >> >> > proxy would first call the getter ... if the getter returns
null
> >> the
> >> >> > proxy
> >> >> > would then look for the setter and invoke the setter with the
> >> >> dependency,
> >> >> > and then forward the call to the getter again.
> >> >> >
> >> >> > sound like a good idea?
> >> >> >
> >> >> > its not as elegant as being able to simply create the page and
> go,
> >> but
> >> >> it
> >> >> > does give us the benefit of lazy dependency lookups and solves
> >> >> > deserialization issues.
> >> >> >
> >> >> > i guess of course if you want to use aop you can intercept new
> >> >> operator
> >> >> > on a
> >> >> > subclass of WebPage and do the wrapping automatically.
> >> >> >
> >> >> > Or make the constructors of the page protected and create
public
>
> >> >> static
> >> >> > factory methods. MyPage page=MyPage.construct(user,
> >> securitycontext);
> >> >> >
> >> >> > -Igor
> >> >> >
> >> >> >
> >> >> > On 11/7/05, Christian Essl <[EMAIL PROTECTED]> wrote:
> >> >> >>
> >> >> >> Do you mean when you construct the page you do something like
> >> >> >>
> >> >> >> MyPage page = (MyPage) wrapInProxy(new MyPage(..));
> >> >> >>
> >> >> >> and wrapInProxy does create the Proxy and does all the
> injection?
> >> >> >>
> >> >> >>
> >> >> >> On Mon, 7 Nov 2005 11:56:23 -0800, Igor Vaynberg
> >> >> >> <[EMAIL PROTECTED] >
> >> >> >> wrote:
> >> >> >>
> >> >> >> > yeah, i was thinking cglib and extract at runtime
> >> >> >> > never used cglib before though
> >> >> >> >
> >> >> >> > that way you just wrap the page with the proxy after you
> create
> >> it
> >> >> and
> >> >> >> > there
> >> >> >> > is no need to worry about serialization/deserialiation
> garbage
> >> >> >> >
> >> >> >> > -Igor
> >> >> >> >
> >> >> >> >
> >> >> >> > On 11/7/05, Christian Essl < [EMAIL PROTECTED]> wrote:
> >> >> >> >>
> >> >> >> >> The interface of the setter parameter or of the field
type.
> Of
> >> >> >> course a
> >> >> >> >> restriction. If you want more you could use cglib (or
spring
> >> aop).
> >> >> >> Don't
> >> >> >> >> know.
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> On Mon, 7 Nov 2005 11:27:28 -0800, Igor Vaynberg
> >> >> >> >> < [EMAIL PROTECTED]>
> >> >> >> >> wrote:
> >> >> >> >>
> >> >> >> >> > what interface would you use for the proxy though?
> >> >> >> >> > -Igor
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > On 11/7/05, Christian Essl <[EMAIL PROTECTED] >
> wrote:
> >> >> >> >> >>
> >> >> >> >> >> Thanks for the clarification and sorry for the
confusion.
> So
> >> >> >> >> >> readObject()
> >> >> >> >> >> as you have it in your code is fine.
> >> >> >> >> >>
> >> >> >> >> >> > To get the bean context i simply make my
> applicationbean
> >> >> >> implement
> >> >> >> >> >> > applicationcontextaware and then i use
> >> >> >> >> >> > ((MyApplication)Application.get()).getBeanContext()
> static
> >> >> >> lookup
> >> >> >> >> >> which
> >> >> >> >> >> > works because application object is always present.
> >> >> >> >> >>
> >> >> >> >> >> Still one question. The threadlocal used in
> >> Application.get()
> >> >> is
> >> >> >> set
> >> >> >> >> at
> >> >> >> >> >> the beginning of a request - on the request thread. I
do
> not
> >> >> know
> >> >> >> but
> >> >> >> >> >> maybe the deserialization of the session could happen
> >> outside
> >> >> of
> >> >> a
> >> >> >> >> >> request
> >> >> >> >> >> - even in a totally different thread?
> >> >> >> >> >>
> >> >> >> >> >> Maybe in readObject() a dynamic proxy could be injected
> >> which
> >> >> >> >> triggers
> >> >> >> >> >> on
> >> >> >> >> >> first access the onInject() method.
> >> >> >> >> >>
> >> >> >> >> >> Christian
> >> >> >> >> >>
> >> >> >> >> >> >
> >> >> >> >> >> > -Igor
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> > On 11/7/05, Christian Essl <[EMAIL PROTECTED]>
> wrote:
> >> >> >> >> >> >>
> >> >> >> >> >> >> On Mon, 7 Nov 2005 15:25:29 +0100, Johan Compagner
> >> >> >> >> >> >> <[EMAIL PROTECTED]>
> >> >> >> >> >> >> wrote:
> >> >> >> >> >> >>
> >> >> >> >> >> >> > And there is also a thing like XML Serialization
> >> >> >> >> >> >> > Which also doesn't use the java read/write object
at
>
> >> all.
> >> >> >> >> >> >> >
> >> >> >> >> >> >>
> >> >> >> >> >> >> Does this mean that the readObject is guaranteed to
be
>
> >> >> called
> >> >> >> on
> >> >> >> >> Page
> >> >> >> >> >> >> because it is serialized through the PageMap and is
> not a
> >> >> >> direct
> >> >> >> >> >> session
> >> >> >> >> >> >> attribute?
> >> >> >> >> >> >>
> >> >> >> >> >> >> I don't get realy clear with 'Serializable closure'
in
>
> >> the
> >> >> >> spec:
> >> >> >> >> >> >>
> >> >> >> >> >> >> "Developers are not guaranteed that containers will
> call
> >> >> >> >> readObject
> >> >> >> >> >> and
> >> >> >> >> >> >> writeObject methods on
> >> >> >> >> >> >> session attributes if they implement them, but are
> >> >> guaranteed
> >> >> >> that
> >> >> >> >> >> the
> >> >> >> >> >> >> Serializable closure of their attributes will be
> >> preserved."
> >> >> >> >> >> >>
> >> >> >> >> >> >> And if readObject() gets called on Pages can I than
> acess
> >> >> >> somehow
> >> >> >> >> the
> >> >> >> >> >> >> ApplicationContext to get to the BeanContext?
> >> >> >> >> >> >>
> >> >> >> >> >> >> Please help.
> >> >> >> >> >> >>
> >> >> >> >> >> >> Thanks,
> >> >> >> >> >> >> Christian
> >> >> >> >> >> >>
> >> >> >> >> >> >> >
> >> >> >> >> >> >> > On 11/7/05, Christian Essl
<[EMAIL PROTECTED] >
> >> wrote:
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> Hi Igor,
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> I looked through your code. Thanks for
implementing
> >> it.
> >> I
> >> >> am
> >> >> >> >> not
> >> >> >> >> >> sure
> >> >> >> >> >> >> >> wheter readObject() is the right place to do the
> >> >> >> (re)injection.
> >> >> >> >> >> >> >> According
> >> >> >> >> >> >> >> to the servlet-spec in SVR 7.7.2 readObject() is
> not
> >> >> >> guaranteed
> >> >> >> >> to
> >> >> >> >> >> be
> >> >> >> >> >> >> >> called on session-attributes. (Instead session
> >> attributes
> >> >> >> which
> >> >> >> >> >> >> >> implement
> >> >> >> >> >> >> >> HttpSessionActiviationListeners are informed on
> >> >> >> >> deserialization).
> >> >> >> >> >> >> Even
> >> >> >> >> >> >> >> if
> >> >> >> >> >> >> >> readObject is called I am not sure wheter there
is
> an
> >> >> >> >> >> >> ApplicationContext
> >> >> >> >> >> >> >> to get to the BeanContext.
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> I don't know wheter wicket has a mean to
propogate
> >> these
> >> >> >> >> >> >> >> HttpSessionEvents
> >> >> >> >> >> >> >> on deserialization or a similar callback? If so I
> >> guess
> >> >> you
> >> >> >> >> could
> >> >> >> >> >> do
> >> >> >> >> >> >> the
> >> >> >> >> >> >> >> (re)injection there.
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> Christian
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> On Mon, 7 Nov 2005 01:13:31 -0800, Igor Vaynberg
> >> >> >> >> >> >> >> <[EMAIL PROTECTED]>
> >> >> >> >> >> >> >> wrote:
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> > here is something i threw together that solves
> the
> >> >> >> >> >> deserialization
> >> >> >> >> >> >> and
> >> >> >> >> >> >> >> > ability to use the new operator to create
pages.
> >> >> atleast
> >> >> i
> >> >> >> >> think
> >> >> >> >> >> it
> >> >> >> >> >> >> >> > does....its really late here and all i really
> know
> >> so
> >> >> far
> >> >> >> is
> >> >> >> >> >> that
> >> >> >> >> >> >> it
> >> >> >> >> >> >> >> > compiles :)
> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> > the idea is pretty simple, do the injection in
> the
> >> >> default
> >> >> >> >> >> >> >> constructor,
> >> >> >> >> >> >> >> > and
> >> >> >> >> >> >> >> > then do it anytime the object is deserialized.
> you
> >> use
> >> >> a
> >> >> >> >> >> >> @SpringBean
> >> >> >> >> >> >> >> > annotation to denote the dependency. it can
> either
> >> be
> >> >> used
> >> >> >> >> on a
> >> >> >> >> >> >> field
> >> >> >> >> >> >> >> or
> >> >> >> >> >> >> >> > on
> >> >> >> >> >> >> >> > a setter. If you specify the bean name it will
be
> >> used
> >> >> to
> >> >> >> >> find
> >> >> >> >> >> the
> >> >> >> >> >> >> >> bean,
> >> >> >> >> >> >> >> > if
> >> >> >> >> >> >> >> > you dont then the field's type or the setters
> >> argument
> >> >> >> type
> >> >> >> >> will
> >> >> >> >> >> be
> >> >> >> >> >> >> >> used
> >> >> >> >> >> >> >> > for
> >> >> >> >> >> >> >> > the lookup.
> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> > -Igor
> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> > On 11/7/05, Igor Vaynberg <
> [EMAIL PROTECTED]>
> >> >> wrote:
> >> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> >> and you have to have the pages defined as
beans
> in
> >> the
> >> >> >> >> >> application
> >> >> >> >> >> >> >> >> context? with their properties specified?
> >> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> >> -Igor
> >> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> >> On 11/7/05, Igor Vaynberg <
> [EMAIL PROTECTED]>
> >> >> >> wrote:
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >> > but how does the above handle
deserealization
> of
> >> >> pages?
> >> >> >> >> there
> >> >> >> >> >> is
> >> >> >> >> >> >> >> >> nothing
> >> >> >> >> >> >> >> >> > to reinject the dependencies.
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >> > -Igor
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >> > On 11/7/05, [EMAIL PROTECTED] <
[EMAIL PROTECTED]>
> >> >> wrote:
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > IMHO pages are standing on the borderline
> >> between
> >> >> a
> >> >> >> >> >> stateful
> >> >> >> >> >> >> GUI
> >> >> >> >> >> >> >> and
> >> >> >> >> >> >> >> >> > > the rest of the application in form of
> >> stateless
> >> >> >> >> services.
> >> >> >> >> >> >> >> >> > > DI should be done by the IoC container,
> >> creating
> >> >> the
> >> >> >> >> pages
> >> >> >> >> >> can
> >> >> >> >> >> >> >> >> better
> >> >> >> >> >> >> >> >> > > be done the standard Wicket way ( e.g.
with
> >> >> >> >> PageParameters).
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > As described before I'm using a custom
page
> >> >> factory
> >> >> >> that
> >> >> >> >> >> >> >> cooperates
> >> >> >> >> >> >> >> >> > > with a wrapped page factory and the
> containing
> >> >> bean
> >> >> >> >> >> factory:
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > public class SpringInjectingPageFactory
> >> implements
> >> >> >> >> >> >> IPageFactory,
> >> >> >> >> >> >> >> >> > > BeanFactoryAware {
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > private AutowireCapableBeanFactory
> beanFactory;
> >> >> >> >> >> >> >> >> > > private IPageFactory pageFactory;
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > public void setPageFactory(IPageFactory
> >> >> pageFactory)
> >> >> >> {
> >> >> >> >> >> >> >> >> > > this.pageFactory = pageFactory;
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > public void setBeanFactory(BeanFactory
> >> >> beanFactory)
> >> >> >> >> throws
> >> >> >> >> >> >> >> >> > > BeansException {
> >> >> >> >> >> >> >> >> > > this.beanFactory =
> >> >> >> >> (AutowireCapableBeanFactory)beanFactory;
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > public Page newPage(Class pageClass) {
> >> >> >> >> >> >> >> >> > > Page page =
> >> this.pageFactory.newPage(pageClass);
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > injectDependencies(page,
pageClass.getName());
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > return page;
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > public Page newPage(Class pageClass,
> >> >> PageParameters
> >> >> >> >> >> >> parameters)
> >> >> >> >> >> >> {
> >> >> >> >> >> >> >> >> > > Page page = this.pageFactory.newPage
> (pageClass,
> >> >> >> >> >> parameters);
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > injectDependencies(page,
pageClass.getName());
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > return page;
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > private void injectDependencies(Page page,
> >> String
> >> >> >> >> >> beanName) {
> >> >> >> >> >> >> >> >> > > if
(this.beanFactory.containsBean(beanName))
> {
> >> >> >> >> >> >> >> >> > > this.beanFactory.applyBeanPropertyValues
> (page,
> >> >> >> >> beanName);
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > > }
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > Note that if you don't specify a name or
id
> >> >> attribute
> >> >> >> >> for
> >> >> >> >> >> >> beans,
> >> >> >> >> >> >> >> >> they
> >> >> >> >> >> >> >> >> > > will be registered under their classname
in
> >> >> Spring.
> >> >> >> >> >> >> >> >> > > And NO, I don't use autowiring:
> >> >> >> >> applyBeanPropertyValues()
> >> >> >> >> >> does
> >> >> >> >> >> >> >> not
> >> >> >> >> >> >> >> >> > > autowire although it is located in
> >> >> >> >> >> AutowireCapableBeanFactory.
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > Sven
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > > >you are right, this is not ioc. but are
> >> >> >> >> pages/components
> >> >> >> >> >> >> managed
> >> >> >> >> >> >> >> by
> >> >> >> >> >> >> >> >> > > an ioc
> >> >> >> >> >> >> >> >> > > >container?
> >> >> >> >> >> >> >> >> > > >-Igor
> >> >> >> >> >> >> >> >> > > >
> >> >> >> >> >> >> >> >> > > >
> >> >> >> >> >> >> >> >> > > >On 11/6/05, Alexandru Popescu <
> >> >> >> >> >> >> >> >> [EMAIL PROTECTED]>
> >> >> >> >> >> >> >> >> > > wrote:
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > > >> #: Igor Vaynberg changed the world a
bit
> at
> >> a
> >> >> time
> >> >> >> by
> >> >> >> >> >> >> saying
> >> >> >> >> >> >> >> on
> >> >> >> >> >> >> >> >> > > 11/6/2005
> >> >> >> >> >> >> >> >> > > >> 7:06 PM :#
> >> >> >> >> >> >> >> >> > > >> > Or how about a simple solution:
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >> >> > > >> > public MyApplication extends
> >> WebApplication
> >> {
> >> >> >> >> >> >> >> >> > > >> > public Object lookup(String name) {
> >> >> >> >> >> >> >> >> > > >> > Object=...do a lookup from somewhere
> like
> >> >> spring
> >> >> >> >> >> context
> >> >> >> >> >> >> or
> >> >> >> >> >> >> >> app
> >> >> >> >> >> >> >> >> > > >> object...;
> >> >> >> >> >> >> >> >> > > >> > return object;
> >> >> >> >> >> >> >> >> > > >> > }
> >> >> >> >> >> >> >> >> > > >> > }
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >> >> > > >> > public MyPage extends Page {
> >> >> >> >> >> >> >> >> > > >> > public transient SomeService service;
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >> >> > > >> > public SomeService getService() {
> >> >> >> >> >> >> >> >> > > >> > if (service==null) {
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >>
> >> >> >> service=getApplication().lookup(SomeService.class.getName());
> >> >> >> >> >> >> >> >> > > >> > }
> >> >> >> >> >> >> >> >> > > >> > return service;
> >> >> >> >> >> >> >> >> > > >> > }
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >> >> > > >> > I know its not quiete as elegant as
ioc
> >> but
> >> >> it
> >> >> >> has
> >> >> >> >> >> none
> >> >> >> >> >> >> of
> >> >> >> >> >> >> >> the
> >> >> >> >> >> >> >> >> > > >> performance
> >> >> >> >> >> >> >> >> > > >> > hits an automatic injection would
cause
> if
> >> it
> >> >> >> would
> >> >> >> >> be
> >> >> >> >> >> >> done
> >> >> >> >> >> >> >> on
> >> >> >> >> >> >> >> >> > > >> > deserialization of every component.
> Also
> >> its
> >> >> a
> >> >> >> lazy
> >> >> >> >> >> >> lookup
> >> >> >> >> >> >> >> so
> >> >> >> >> >> >> >> >> you
> >> >> >> >> >> >> >> >> > > dont
> >> >> >> >> >> >> >> >> > > >> do it
> >> >> >> >> >> >> >> >> > > >> > until its needed, and its only done
> once
> >> per
> >> >> >> page
> >> >> >> >> >> (until
> >> >> >> >> >> >> it
> >> >> >> >> >> >> >> >> gets
> >> >> >> >> >> >> >> >> > > >> > deserialized).
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >> >> > > >> > -Igor
> >> >> >> >> >> >> >> >> > > >> >
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > > >> But this was exactly what I was
> suggesting
> >> to
> >> >> >> avoid
> >> >> >> >> ;-).
> >> >> >> >> >> >> >> Lookups
> >> >> >> >> >> >> >> >> > > and
> >> >> >> >> >> >> >> >> > > >> factories are not ioc/di.
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > > >> ./alex
> >> >> >> >> >> >> >> >> > > >> --
> >> >> >> >> >> >> >> >> > > >> .w( the_mindstorm )p.
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> -------------------------------------------------------
> >> >> >> >> >> >> >> >> > > >> SF.Net email is sponsored by:
> >> >> >> >> >> >> >> >> > > >> Tame your development challenges with
> >> Apache's
> >> >> >> >> Geronimo
> >> >> >> >> >> App
> >> >> >> >> >> >> >> >> Server.
> >> >> >> >> >> >> >> >> > > >> Download
> >> >> >> >> >> >> >> >> > > >> it for free - -and be entered to win a
> 42"
> >> >> plasma
> >> >> >> tv
> >> >> >> >> or
> >> >> >> >> >> >> your
> >> >> >> >> >> >> >> very
> >> >> >> >> >> >> >> >> > > own
> >> >> >> >> >> >> >> >> > > >> Sony(tm)PSP. Click here to play:
> >> >> >> >> >> >> >> >> > > http://sourceforge.net/geronimo.php
> >> >> >> >> >> >> >> >> > > >>
> >> _______________________________________________
> >> >> >> >> >> >> >> >> > > >> Wicket-user mailing list
> >> >> >> >> >> >> >> >> > > >> Wicket-user@lists.sourceforge.net
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >> >> >> >> >> >> > > >>
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> > >
> >> >> >> -------------------------------------------------------
> >> >> >> >> >> >> >> >> > > SF.Net email is sponsored by:
> >> >> >> >> >> >> >> >> > > Tame your development challenges with
> Apache's
> >> >> >> Geronimo
> >> >> >> >> App
> >> >> >> >> >> >> >> Server.
> >> >> >> >> >> >> >> >> > > Download
> >> >> >> >> >> >> >> >> > > it for free - -and be entered to win a 42"
> >> plasma
> >> >> tv
> >> >> >> or
> >> >> >> >> >> your
> >> >> >> >> >> >> very
> >> >> >> >> >> >> >> >> own
> >> >> >> >> >> >> >> >> > > Sony(tm)PSP. Click here to play:
> >> >> >> >> >> >> >> http://sourceforge.net/geronimo.php
> >> >> >> >> >> >> >> >> > >
> _______________________________________________
> >> >> >> >> >> >> >> >> > > Wicket-user mailing list
> >> >> >> >> >> >> >> >> > > Wicket-user@lists.sourceforge.net
> >> >> >> >> >> >> >> >> > >
> >> >> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >> >> >> >> >> >> > >
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> --
> >> >> >> >> >> >> >> Christian Essl
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> ___________________________________________________________
> >> >> >> >> >> >> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher
> >> >> kostenlos
> >> >> >> -
> >> >> >> >> Hier
> >> >> >> >> >> >> >> anmelden: http://mail.yahoo.de
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> -------------------------------------------------------
> >> >> >> >> >> >> >> SF.Net email is sponsored by:
> >> >> >> >> >> >> >> Tame your development challenges with Apache's
> >> Geronimo
> >> >> App
> >> >> >> >> >> Server.
> >> >> >> >> >> >> >> Download
> >> >> >> >> >> >> >> it for free - -and be entered to win a 42" plasma
> tv
> >> or
> >> >> your
> >> >> >> >> very
> >> >> >> >> >> own
> >> >> >> >> >> >> >> Sony(tm)PSP. Click here to play:
> >> >> >> >> >> http://sourceforge.net/geronimo.php
> >> >> >> >> >> >> >> _______________________________________________
> >> >> >> >> >> >> >> Wicket-user mailing list
> >> >> >> >> >> >> >> Wicket-user@lists.sourceforge.net
> >> >> >> >> >> >> >>
> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >> --
> >> >> >> >> >> >> Christian Essl
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> ___________________________________________________________
> >> >> >> >> >> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher
> >> kostenlos
> >> >> -
> >> >> >> Hier
> >> >> >> >> >> >> anmelden: http://mail.yahoo.de
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> -------------------------------------------------------
> >> >> >> >> >> >> SF.Net email is sponsored by:
> >> >> >> >> >> >> Tame your development challenges with Apache's
> Geronimo
> >> App
> >> >> >> >> Server.
> >> >> >> >> >> >> Download
> >> >> >> >> >> >> it for free - -and be entered to win a 42" plasma tv
> or
> >> your
> >> >> >> very
> >> >> >> >> own
> >> >> >> >> >> >> Sony(tm)PSP. Click here to play:
> >> >> >> >> http://sourceforge.net/geronimo.php
> >> >> >> >> >> >> _______________________________________________
> >> >> >> >> >> >> Wicket-user mailing list
> >> >> >> >> >> >> Wicket-user@lists.sourceforge.net
> >> >> >> >> >> >>
> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >> --
> >> >> >> >> >> Christian Essl
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> ___________________________________________________________
> >> >> >> >> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher
> kostenlos
> >> -
> >> >> Hier
> >> >> >> >> >> anmelden: http://mail.yahoo.de
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >> -------------------------------------------------------
> >> >> >> >> >> SF.Net email is sponsored by:
> >> >> >> >> >> Tame your development challenges with Apache's Geronimo
> App
> >> >> >> Server.
> >> >> >> >> >> Download
> >> >> >> >> >> it for free - -and be entered to win a 42" plasma tv or
> your
> >> >> very
> >> >> >> own
> >> >> >> >> >> Sony(tm)PSP. Click here to play:
> >> >> >> http://sourceforge.net/geronimo.php
> >> >> >> >> >> _______________________________________________
> >> >> >> >> >> Wicket-user mailing list
> >> >> >> >> >> Wicket-user@lists.sourceforge.net
> >> >> >> >> >>
https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> --
> >> >> >> >> Christian Essl
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
___________________________________________________________
> >> >> >> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher
kostenlos
> -
> >> Hier
> >> >> >> >> anmelden: http://mail.yahoo.de
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> -------------------------------------------------------
> >> >> >> >> SF.Net email is sponsored by:
> >> >> >> >> Tame your development challenges with Apache's Geronimo
App
> >> >> Server.
> >> >> >> >> Download
> >> >> >> >> it for free - -and be entered to win a 42" plasma tv or
your
>
> >> very
> >> >> own
> >> >> >> >> Sony(tm)PSP. Click here to play:
> >> >> http://sourceforge.net/geronimo.php
> >> >> >> >> _______________________________________________
> >> >> >> >> Wicket-user mailing list
> >> >> >> >> Wicket-user@lists.sourceforge.net
> >> >> >> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> Christian Essl
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> ___________________________________________________________
> >> >> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos -
> Hier
> >> >> >> anmelden: http://mail.yahoo.de
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> -------------------------------------------------------
> >> >> >> SF.Net email is sponsored by:
> >> >> >> Tame your development challenges with Apache's Geronimo App
> >> Server.
> >> >> >> Download
> >> >> >> it for free - -and be entered to win a 42" plasma tv or your
> very
> >> own
> >> >> >> Sony(tm)PSP. Click here to play:
> >> http://sourceforge.net/geronimo.php
> >> >> >> _______________________________________________
> >> >> >> Wicket-user mailing list
> >> >> >> Wicket-user@lists.sourceforge.net
> >> >> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >> >>
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> Christian Essl
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> ___________________________________________________________
> >> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos -
Hier
>
> >> >> anmelden: http://mail.yahoo.de
> >> >>
> >> >>
> >> >>
> >> >> -------------------------------------------------------
> >> >> SF.Net email is sponsored by:
> >> >> Tame your development challenges with Apache's Geronimo App
> Server.
> >> >> Download
> >> >> it for free - -and be entered to win a 42" plasma tv or your
very
> own
> >> >> Sony(tm)PSP. Click here to play:
> http://sourceforge.net/geronimo.php
> >> >> _______________________________________________
> >> >> Wicket-user mailing list
> >> >> Wicket-user@lists.sourceforge.net
> >> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >> >>
> >>
> >>
> >>
> >> --
> >> Christian Essl
> >>
> >>
> >>
> >>
> >>
> >> ___________________________________________________________
> >> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos - Hier
> >> anmelden: http://mail.yahoo.de
> >>
> >>
> >>
> >> -------------------------------------------------------
> >> SF.Net email is sponsored by:
> >> Tame your development challenges with Apache's Geronimo App Server.
> >> Download
> >> it for free - -and be entered to win a 42" plasma tv or your very
own
>
> >> Sony(tm)PSP. Click here to play:
http://sourceforge.net/geronimo.php
> >> _______________________________________________
> >> Wicket-user mailing list
> >> Wicket-user@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/wicket-user
> >>
>
>
>
> --
> Christian Essl
>
>
>
>
>
> ___________________________________________________________
> Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos - Hier
> anmelden: http://mail.yahoo.de
>
>
>
> -------------------------------------------------------
> SF.Net email is sponsored by:
> Tame your development challenges with Apache's Geronimo App Server.
> Download
> it for free - -and be entered to win a 42" plasma tv or your very own
> Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php
> _______________________________________________
> Wicket-user mailing list
> Wicket-user@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/wicket-user
>
