Well, thank you very much but I need to clarify one last thing.
In "GWT in Action - Easy Ajax with the Google Web Toolkit" book,
Chapter 10 "Communicating with GWT-RPC", Section 5 "Defining the GWT-
RPC Service", Paragraph 5 "Setting Up Your Service for Hosted-Mode
Testing", you could read the following:
"
Note that, just like a Java application server, the path to the
servlet is relative to the web project root and not the root of the
server. With this project, the default project URL in hosted mode is
the following.
http://localhost:8888/org.gwtbook.ServerStatus/ServerStatus.html
So, when we specify /server-status as the path to the servlet *, it
will be accessible with the following URL:
http://localhost:8888/org.gwtbook.ServerStatus/server-status
---
* <servlet path="/server-status"
class="org.gwtbook.server.ServerServiceImpl"/>
"
My question is: does that mean that I would get the same thing (HTML
page) whether I wrote the first URL or the second one in the address
bar??!!
As for me I don't think so because the second URL is the address of
the service not the HTML page. So if I wrote that URL in the address
bar I should not get the ServerStatus.html page loaded, which is
exactly what happpens with me; when I wrote the service address I get
the following error, which is reasonable:
"
HTTP Status 405 - HTTP method GET is not supported by this URL
type: Status report
message: HTTP method GET is not supported by this URL
description: The specified HTTP method is not allowed for the
requested resource (HTTP method GET is not supported by this URL).
"
So, depending on the previous explanation, if I have multiple services
(like in my case above: HomeService, AboutService...) it's not enough
to write their URL in order to get them loaded!
Not to forget that in order to be able to call a service from the
client side you should do a very IMPORTANT thing, Generate the Service
Proxy Object, which is NOT done automatically when I write the
service's URL in the address bar.
"
ServerStatusServiceAsync serviceProxy = (ServerStatusServiceAsync)
GWT.create(ServerStatusService.class);
ServiceDefTarget target = (ServiceDefTarget) serviceProxy;
target.setServiceEntryPoint(GWT.getModuleBaseURL() + "server-
status");
"
On Nov 6, 6:15 pm, walden <[EMAIL PROTECTED]> wrote:
> Muhannad,
>
> I agree with Litty and Gregor. Probably the best thing to bring
> clarity to you at this point would be for you to develop the canonical
> GWTsingle-page rich clientapplicationand use asingleGWT RPC
> Service for all data needs. Get comfortable with that model (you can
> do a lot with it!) before you try to hybridize with standard page-load-
> page webapplicationstyle. In particular, drop the idea of Service-
> per-URL. Yagni.
>
> Walden
>
> On Nov 6, 2:35 am, Muhannad <[EMAIL PROTECTED]> wrote:
>
> > Hi Walden,
>
> > I'm not sure that I got your idea, but I always had a concern about
> > that so I'll share it with you:
> > 1. Does the GWTapplicationhave just one html page (module-name.html)
> > that all the content should be rendered there?
> > What I mean is that Litty wrote "if the URL ends with /about then
> > the AboutService will be called". Well but what if that AboutService
> > does not extends or consists of any UI element? What is gonna to be
> > displayed on the browser?
>
> > 2. What I've received from your idea above is, each service should
> > have its own (index.html)??!! If that was the case, each time I click
> > on a menu item then a whole new page is going to be rendered and the
> > browser will send an HTTP request and page will be rebuilt and
> > displayed, which is not the case here:http://extjs.com/Pleasetry to
> > click any menu item and notice that only a portion of the page is
> > rendered (the section under the menu) and not the whole page.
> > Actually, this is exactly what I need to do but I think I was not
> > clear enough.
>
> > 3. Suppose that I want to pass parameters in the URL in some
> > customized format; not using the regular
> > wayhttp://domain/service?param1=value1¶m2=value2.
> > For example, something like that:
> > http://domain/service/param1/value1/param2/value2.
> > Where should I write my own code that should take care of this
> > customized URL "encoding"?? I mean, is there any place in GWT
> >applicationwhere I could capture the URL and manipulate it before
> > redirect it to some place depending on some parameters passed?? I
> > guess there is something in .NET called HTTP Handler or Generic
> > Handler to deal with that. I think this is an issue that the Web
> > Server should deal with it not the GWTapplication???!!!
>
> > Thank you very much.
>
> > On Nov 5, 5:56 pm, walden <[EMAIL PROTECTED]> wrote:
>
> > > Muhannad,
>
> > > There's a problem with your assumptions. When a user clicks on your
> > > "about" menu link, she's not going to get a Panel, she's going to get
> > > a whole new page fromhttp://domain/about/index.html. That page can
> > > be a GWT host file if you like, but this is regular HTML pages, not a
> > > rich GWT client showing and hiding content based on menu navigation.
> > > I think you'd better get your head around that first, and then tackle
> > > the RPC URL binding question next, if it's even an issue at all.
>
> > > Walden
>
> > > On Nov 5, 5:12 am,Muhannad<[EMAIL PROTECTED]> wrote:
>
> > > > Hi,
>
> > > > I want to build a website with (Home, about, products, ...) menu. I
> > > > need to build multiple forms (panels), each panel corresponds to one
> > > > menu item, e.g. aboutPanel for "about" menu item, productsPanel for
> > > > "products"...
>
> > > > Moreover, I would like to implement that panel in terms of RPC
> > > > services; I need to correspond each panel to asingleRPC service that
> > > > communicates with the server to get its data, build the whole form,
> > > > and return the result as a panel to be displayed somewhere in the home
> > > > page (for example).
>
> > > > Of course, GWT allows us to define multiple services and add multiple
> > > > <servlet path="/service" ...> to the module XML file.
>
> > > > My problem is how to know which service should I instantiate depending
> > > > on the URL mapping, i.e. suppose that the menu is defined as follow:
>
> > > > <div id="menu">
> > > > <a href="index.html">Home</a>
> > > > <a href="/about">About us</a>
> > > > <a href="/products">Products</a>
> > > > ...
> > > > </div>
>
> > > > So when someone clicks the "About us" link, the URL would be "http://
> > > > domain/about". So I should instantiate the "about" service and create
> > > > an aboutPanel to display it. The same thing when s/he clicks the
> > > > "Products" link, then the URL is "http://domain/products"; and, in this
> > > > case, I should build the product panel...
>
> > > > So, is there somewhere in GWTapplicationthat I could parse the URL
> > > > and depending on the mapping portion of it "/about" or "/products"
> > > > could I decide which service to instantiate? Or is there another
> > > > better way to do that?
>
> > > > Thank you very much in advance.- Hide quoted text -
>
> > - Show quoted text -
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