Re: [Wicket-user] where do I put controller/dispatcher logic?
Hello, On 11/7/05, Steven McNeel [EMAIL PROTECTED] wrote: I consider this sort of thing as analogous to MVC Front Controller (aka Dispatcher) logic. I'm basically unclear as to where that logic belongs in a Wicket app. The fact is, while I'm still new in the area of Components based web frameworks, I think there is a mismatch between the Model 2 way of doing things and the Component oriented way ... ? Could you precise your need ? Because you original post was so general I may have missed the point ? thanks, -- laurent --- 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
Re: [Wicket-user] where do I put controller/dispatcher logic?
There sure is a mismatch; component based frameworks emerged because of the mismatch Model 2 frameworks with page parts. Requests in Model 2 frameworks map to page wide actions. The controller/ view handler has to ensure the state of all elements of the page are kept in sync and rendered correctly. That's okay for simple pages, but if you have pages with multiple, independent parts (think e.g. of a pageable list being one of those) you're in a mess and generally have to use hackish solutions like command chaining and 'interception'. With component based frameworks, you should be able to create isolated parts (components) that react on events, keep state and render independently of the other parts of the page, making it easier and more elegant to write applications with, and also make reuse an option (because components are self contained). That's the whole idea of Model 2 vs CBD. Eelco On 11/9/05, Laurent PETIT [EMAIL PROTECTED] wrote: Hello, On 11/7/05, Steven McNeel [EMAIL PROTECTED] wrote: I consider this sort of thing as analogous to MVC Front Controller (aka Dispatcher) logic. I'm basically unclear as to where that logic belongs in a Wicket app. The fact is, while I'm still new in the area of Components based web frameworks, I think there is a mismatch between the Model 2 way of doing things and the Component oriented way ... ? Could you precise your need ? Because you original post was so general I may have missed the point ? thanks, -- laurent --- 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
Re: [Wicket-user] where do I put controller/dispatcher logic?
On 11/7/05, Steven McNeel [EMAIL PROTECTED] wrote:
Hello,
I think I've read all of the pertinent articles in the documentation,
especially
http://www.wicket-wiki.org.uk/wiki/index.php/Lifecycle. On
each request to my app, I first need to run a database query,the parameters
of which are dependent on the parameters in the Request. Then I need to
forward to a page, which also depends on the request parameters. It looks
like I'm supposed to override methods on RequestCycle ( i.e.
onBeginRequest(), request(), and onEndRequest()).
onBeginRequest might be the right please. It gets called just before
the URL gets analyzed. But the URL parameters are already available.
If this is correct, then my question is: once I create my subclass of
WebRequestCycle, how do I integrate that into my application flow? It seems
that the instantiation and use of RequestCycle objects is performed by the
Wicket framework. Where are my hooks to make the Session return my custom
RequestCycle? And how do I handle the initial request, before a Session is
even created?
Please have a look at the examples. Application.java provides the
hooks. The wiki contains some information about how to do it as well
public final class SignIn2Application extends WicketExampleApplication
{
/**
* @see wicket.protocol.http.WebApplication#getSessionFactory()
*/
public ISessionFactory getSessionFactory()
{
return new ISessionFactory()
{
public Session newSession()
{
return new SignIn2Session(SignIn2Application.this);
}
};
}
And by subclassing WebSession.getRequestCycleFactory() you can create
your own RequestCycles.
Juergen
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Re: [Wicket-user] where do I put controller/dispatcher logic?
And you are sure the queries you want to run are page/ component independent, right? What you are doing is request based, which is fine, but which is not nescesarily a component based way of doing things. Eelco On 11/7/05, Steven McNeel [EMAIL PROTECTED] wrote: Hello, I think I've read all of the pertinent articles in the documentation, especially http://www.wicket-wiki.org.uk/wiki/index.php/Lifecycle. On each request to my app, I first need to run a database query,the parameters of which are dependent on the parameters in the Request. Then I need to forward to a page, which also depends on the request parameters. It looks like I'm supposed to override methods on RequestCycle ( i.e. onBeginRequest(), request(), and onEndRequest()). If this is correct, then my question is: once I create my subclass of WebRequestCycle, how do I integrate that into my application flow? It seems that the instantiation and use of RequestCycle objects is performed by the Wicket framework. Where are my hooks to make the Session return my custom RequestCycle? And how do I handle the initial request, before a Session is even created? I consider this sort of thing as analogous to MVC Front Controller (aka Dispatcher) logic. I'm basically unclear as to where that logic belongs in a Wicket app. Thanks in advance! -Steven McNeel --- 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
Re: [Wicket-user] where do I put controller/dispatcher logic?
It confused me just until 10 minutes ago. I agree with you that it should
be renamed if it is not already a too late.
Christian
I also think it is confusing if not misleading.
On Mon, 7 Nov 2005 23:53:16 +0100, Johan Compagner [EMAIL PROTECTED]
wrote:
ahh yes i see it
Got confused with the method names and calls and where they where on.
(We have also a Page begin and end request which is called in the
response
phase)
On 11/7/05, Christian Essl [EMAIL PROTECTED] wrote:
I do not understand this now. But when I just went through the code I
think RequestCycle.onBeginRequest() is called before the interpretation
of
the url and the call of the listeners.
However Component.onBeginRequest() is called only before the render
phase.
Is this right?
On Mon, 7 Nov 2005 23:10:38 +0100, Johan Compagner
[EMAIL PROTECTED]
wrote:
onBeginRequest is not the first thing that is called
IT is the first thing that is called in the response/render phase.
But what i call the request/invoke phase is before that.
And the only hook there really is in a Listener call is as far as i
know
the:
((WebPage)page).beforeCallComponent(component, method);
But we should really stream line all the hooks
johan
On 11/7/05, Juergen Donnerstag [EMAIL PROTECTED] wrote:
On 11/7/05, Steven McNeel [EMAIL PROTECTED] wrote:
Hello,
I think I've read all of the pertinent articles in the
documentation,
especially
http://www.wicket-wiki.org.uk/wiki/index.php/Lifecycle. On
each request to my app, I first need to run a database query,the
parameters
of which are dependent on the parameters in the Request. Then I
need
to
forward to a page, which also depends on the request parameters. It
looks
like I'm supposed to override methods on RequestCycle ( i.e.
onBeginRequest(), request(), and onEndRequest()).
onBeginRequest might be the right please. It gets called just before
the URL gets analyzed. But the URL parameters are already available.
If this is correct, then my question is: once I create my subclass
of
WebRequestCycle, how do I integrate that into my application flow?
It
seems
that the instantiation and use of RequestCycle objects is performed
by
the
Wicket framework. Where are my hooks to make the Session return my
custom
RequestCycle? And how do I handle the initial request, before a
Session
is
even created?
Please have a look at the examples. Application.java provides the
hooks. The wiki contains some information about how to do it as well
public final class SignIn2Application extends
WicketExampleApplication
{
/**
* @see wicket.protocol.http.WebApplication#getSessionFactory()
*/
public ISessionFactory getSessionFactory()
{
return new ISessionFactory()
{
public Session newSession()
{
return new SignIn2Session(SignIn2Application.this);
}
};
}
And by subclassing WebSession.getRequestCycleFactory() you can create
your own RequestCycles.
Juergen
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