On 12/20/05, Laurie Harper <[EMAIL PROTECTED]> wrote: > > So I'm pretty much sold on migrating from Struts/JSPs to JSF at this > point, with one remaining caveat I've yet to figure out. I've brought > this up before, but haven't found a good solution yet. I think the > easiest way to get what I want is to use struts-faces, but then I can't > get the benefits of Shale... So, I'd like to revisit the base > requirements to see if anyone can see a way to do what I want w/out > Struts Action / struts-faces in the mix... > > My base requirement is that everything be directly addressable by a > bookmark-able URL. So, for example, I'd like to have a URL like > http://.../users to be rendered by /users.jsp as a list of users and, > when you click on an entry in the list, you'd get taken to > http://.../users/bob which would be rendered by /userInfo.jsp. For any > X, the URL http://.../users/X would be rendered by /userInfo.jsp, with X > being made available to the JSP (or backing bean) as a request > parameter, request attribute or whatever. > > Using struts-faces, I can get what I want by using wild-card action > mappings to map logical URLs to physical JSPs, passing wild-card matched > parts of the request URL on to the view in the action; something like, > roughly: > > <action path="/users/*" type="myaction" forward="/user.jsp"> > <set-property name="user" value="{1}"/> > > I need a way to get the same mapping from logical URLs to actual JSPs > with vanilla JSF / Shale. Sean suggested I could try writing a custom > navigation handler, but that doesn't seem to work since a navigation > handler only gets to influence how from-view-id/from-outcome pairs get > mapped to views. > > I tried setting up a front controller servlet that encapsulates the > URL-to-view mapping logic, but that doesn't work because to-view-id in a > navigation-rule is not a context relative path, so my navigation rules > can't route through my controller servlet... > > I'm really hoping I can find a way to do this that doesn't involve > deploying Struts + struts-faces as a front controller to Shale ;-) My > requirements can't be *that* weird can they?
No, you just need a custom NavigationHandler, coupled with using <redirect/> elements in your navigation rules to ensure that the URLs in the browser are what you are after. (See also my response to your comment on the myfaces list too ... view identifiers for the default view handler *are* context relative paths starting with a '/'.) One consequence of that decision, however, is that you can't pass information in request scope from one page to another (because the rendering is done in a separate HTTP request). Here is where Shale's view handler capabilities can come in handy, however ... if you have such a backing bean for each JSP page, it's prerender() method will be invoked immediately before the page is rendered. As such, it is pretty much analogous to a "setup" action in Struts 1.x based applications, and you can use it to go collect any model data needed to render this page. L. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
