Bairos, Representing a navigation like this with an FA would create too many states. This is better represented as a stack of pages. Each time you navigate to a new page, that page captures the state of all the pages you used to get to it. See the use cases below.
Igor -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alexandre Bairos Sent: Wednesday, June 29, 2005 8:47 AM To: wicket-user@lists.sourceforge.net Subject: Re: [Wicket-user] breadcrumbs with wicket If i understood it has to do with the finite state machine represented by the web flow, right? Bairos On 6/29/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote: > The last app I worked on was done in tapestry. The way I implemented > it there is almost exactly the way you describe. I had a session > storage that kept the page stack and I can get the page state by > capturing request.parameters and page's persistent properties. The big > problem with that approach is that it pretty much blows the back > button out of the water since there is no good way to sync the page stack in session. > > What I was thinking with wicket is to move the page stack into a base > page, and when I create a new page pass the creating page into the > constructor of the created page to create the breadcrumb. That way the > new page clone the page stack of the creating page and add it into the > page stack. I think this approach will eliminate the back button > problem. There are a couple of things I still have to investigage. > 1) should I put the creating page directly into the page stack, or > should I clone it first. > 2) is there a way to dump all versions except the current one since I > wont need that information (which will force cloning of the page) > 3) are there any problems with cloning a page > 4) storing the page state object instead of the page, although I > havent seen anywhere that lets you create a page from the page state > yet > > Any thoughts will be greatly appreciated. IMHO a small framework for > doing this would be a very nice addition to wicket since a lot of > modern web apps can benefit from this navigation technique. I will > happily donate any code if I get it working well. > > Igor > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Eelco > Hillenius > Sent: Wednesday, June 29, 2005 1:42 AM > To: wicket-user@lists.sourceforge.net > Subject: Re: [Wicket-user] breadcrumbs with wicket > > Kind of a though question. None of the frameworks out there will have > a solid answer for that. > > Generally what I do in these kind of situations, is either use a > session property (in the typed session ofcourse) to maintain state > between pages, or I make sure that I can rebuild the state I need e.g. > by using page parameters or passing the models I need. The first is > cleaner as it doesn't force you to the page level, but you shouldn't > just put everthing in your session. > > An alternative way of looking at things is trying to avoid navigation > from pages when you have to use cases you described, and work more with e.g. > panel replacement etc. > > If you come up with good idea's, please share! > > Eelco > > Igor Vaynberg wrote: > > >Hi Guys, > >Im building an application with a non-hirarchical navigation structure. > >I need breadcrumbs so that users can easily back-navigate between > >pages. I am wondering what you guys think is the best way to > >accomplish this with wicket. > > > >Here are a couple of use cases: > > > >1) A user can come to a search results page from a couple of > >different search pages ( different criteria ). From the search > >results page the user can go in and manipulate returned objects. I > >would like to keep the original criteria page and the search results > >page in the breadcrumbs so that the user can get back to them at any > >time: for example to begin working on a different search result. > > > >2) While filling out a form a user discovers that one of the options > >they need is missing. The user then clicks the add option button and > >walks through a wizard to add a new option, once the wizard is done > >the user goes back to the form (with whatever values were entered > >before the wizard present). > > > >3) A wizard that spins off another wizard. > > > >Thanks, > >Igor > > > > > > > > > >------------------------------------------------------- > >SF.Net email is sponsored by: Discover Easy Linux Migration > >Strategies from IBM. Find simple to follow Roadmaps, straightforward > >articles, informative Webcasts and more! Get everything you need to > >get up to speed, fast. > >http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click > >_______________________________________________ > >Wicket-user mailing list > >Wicket-user@lists.sourceforge.net > >https://lists.sourceforge.net/lists/listinfo/wicket-user > > > > > > > > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > from IBM. Find simple to follow Roadmaps, straightforward articles, > informative Webcasts and more! Get everything you need to get up to speed, fast. > http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click > _______________________________________________ > Wicket-user mailing list > Wicket-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wicket-user > > > > > > > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > from IBM. 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