yes. and that design was not accidental. in a framework, making
some things harder is as important as making other things easier.
for example, we could have provided easy access to the HttpSession.
there are people who do need access to that. but it gives people the
wrong idea about how to do things in wicket.
more is not necessarily better. and i think that's true here. more
support for client state and/or better support for generic web services
would actually move people in the wrong direction in terms of wicket's
stated goal to provide component-oriented manipulation of markup.
Martijn Dashorst wrote:
>
> This is one of the area's where Wicket wasn't designed for. It is
> possible to accomplish, but not as elegantly as using components.
>
> Martijn
>
> On 3/16/07, Robert . <[EMAIL PROTECTED]> wrote:
>> I tried to look at those listeners. If I understand correctly you always
>> need to be a component to be a listener.
>> Each listener interface must have 1 method with 0 parameters. So it means
>> all state must be kept in the component.
>> You cannot pass any parameters to it? So in the case of a PageLink you
>> must
>> know which page to render, before
>> the link has been clicked?
>>
>> I'm just trying to sort things out in my head.
>> I would like to know more about how Wicket knows which ILinkListener to
>> call
>> when a link is clicked. I found the apidocs
>> to be rather abstract about listeners. It felt like you already had to
>> know
>> how they work before you can understand the docs.
>>
>> Please don't take any off this as criticism against Wicket. I'm sure it
>> is a
>> great project. And I will be using it in the future.
>> I'm just not sure if I should convert this project from Tapestry to
>> Wicket.
>> I am beginning to think that it's not a good idea.
>>
>>
>>
>> On 3/15/07, Jonathan Locke <[EMAIL PROTECTED]> wrote:
>> >
>> >
>> > yes. that and the ability to create new listeners. there is nothing
>> > special about the listeners that wicket pre-registers to handle various
>> > kinds of requests such as resource requests or link clicks (although
>> you
>> > should definitely prefer the already existing event listeners!). in
>> fact,
>> > below is the code in init that registers all the "service" listeners in
>> > wicket
>> > revealing that you can create your own if you're doing something
>> special
>> > that wicket does not (yet) support.
>> >
>> > /**
>> > * @see wicket.IInitializer#init(wicket.Application)
>> > */
>> > public void init(Application application)
>> > {
>> > // Register listener interfaces explicitly (even though
>> they implicitly
>> > // register when loaded) because deserialization of an
>> object that
>> > // implements an interface does not load the interfaces
>> it
>> implements!
>> > IBehaviorListener.INTERFACE.register ();
>> >
>> IUnversionedBehaviorListener.INTERFACE.register();
>> > IFormSubmitListener.INTERFACE.register();
>> > ILinkListener.INTERFACE.register();
>> > IOnChangeListener.INTERFACE.register ();
>> > IRedirectListener.INTERFACE.register();
>> > IResourceListener.INTERFACE.register();
>> > }
>> >
>> > public interface ILinkListener extends IRequestListener
>> > {
>> > /** Listener interface */
>> > public static final RequestListenerInterface INTERFACE = new
>> > RequestListenerInterface(
>> > ILinkListener.class);
>> >
>> > /**
>> > * Called when a link is clicked.
>> > */
>> > void onLinkClicked();
>> > }
>> >
>> >
>> > igor.vaynberg wrote:
>> > >
>> > > wicket's equivalent of a service is a shared resource. you can
>> register
>> > > your
>> > > own shared resources through your webapplication subclass.
>> > >
>> > > as far as selecting pages via javascript:
>> > >
>> > > wicket doesnt really have a page service. urls for pages are resolved
>> > > internally. if you want a stable entry point into the page then you
>> should
>> > > mount it, also via the webapplication subclass, and then the
>> javascript
>> > > can
>> > > redirect to the mounted url.
>> > >
>> > > -igor
>> > >
>> > >
>> > > On 3/15/07, Robert . < [EMAIL PROTECTED]> wrote:
>> > >>
>> > >> Hi,
>> > >>
>> > >> I have been examining how I can convert a web application product
>> from
>> > >> Tapestry 3 to Wicket, and trying to adapt
>> > >> myself to the Wicket way of thinking about web flow.
>> > >>
>> > >> One part that I just can't seem to figure out from reading Pro
>> Wicket
>> and
>> > >> browsing through the apidocs is how to
>> > >> make something like Tapestry "services".
>> > >>
>> > >> For example I have an action service in Tapestry that let's me send
>> an
>> > >> action command, including additonal parameters,
>> > >> to the service by using javascript. I have such a service for both
>> normal
>> > >> requests and XMLHTTP requests. But thinking
>> > >> about this further makes me realize I don't even know how to make
>> > >> something like a PageService where the page is determined by
>> javascript.
>> > >>
>> > >> I feel like I am missing something.
>> > >>
>> > >> Robert
>> > >>
>> > >>
>> > >>
>> > >>
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