I'm sorry but I'm a bit confused by the terminology. I'm not a T4 user and the only thing I know about "rewind" is that it does not exist in T5. If you want to initialize business data, onActivate is the place to do it. If you want to handle form events, use event handlers to catch them. If you want to execute something at the end of a request within the context of the page, use pageDetached.
I apologize if I'm missing your point. Perhaps someone else can chime in. chris Luca Fossato wrote: > Hi Chris, > > thank you. > > Sorry, I didn't explain well. I intended from an "html page" point of view. > Example: I have a page with a form. I'd like to track its lifecycle > both for the "rewind" and "render" phase > (I use T4 "rewind" term to indicate that the application is "exiting" > from a page, and "render" to indicate the application is entering into > the page) > > Here's an example log of the page lifecycle when I press the submit > button of its form: > > --- cut here --- > > >>> page is rendered; click the submit button of the form: >>> > > ====> [TRANSACTION] transaction begin... > myPage : pageAttached > myPage : onActivate > ** db initialization... > myPage : onSuccessFromForm > myPage: onPassivate (1 time) > <==== [TRANSACTION] closed the entity manager... > > myPage : pageDetached > > << form submit was successfull; T5 redirects to the same page; > > ====> [TRANSACTION] transaction begin... > myPage : pageAttached > myPage : onActivate > ** db initialization... > myPage: onPassivate (x times) > <==== [TRANSACTION] closed the entity manager... > > myPage : pageDetached > > --- cut here --- > > It seems to me that pageDetached is executed for both "rewind" and > "render" phases. > I'd like to know if there is an API or a strategy that I can use in > onActivate method (or another initialization method) to know if I am > exiting or entering the page. > > For example, I'd like to enter into a page and use onActivate() to > initialize business data from the db and store it into a cache > (session). > Then, when I press the submit button of the form contained into the > page, T5 will re-execute onActivate() again. > At that moment, I'd like to know if I am in the "rewind" phase. If so, > I could get the data from the cache (and then remove it from the > cache, too) > > When T5 re-enters into the page and re-executes onActivate() (3rd > time), I will check if the page is in "render" phase. > If so I will query the db again to get "fresh" data. > > Regards, > Luca > > > On Fri, Apr 18, 2008 at 2:46 PM, Chris Lewis <[EMAIL PROTECTED]> wrote: > >> Luca, >> >> I think what you want is the page life cyle method "PageDetached." See: >> http://tapestry.apache.org/tapestry5/tapestry-core/guide/lifecycle.html >> >> sincerely, >> chris >> >> >> >> Luca Fossato wrote: >> > Hi, >> > >> > in Tapestry 5 is there a way to determine if the application is >> > entering or exiting from a page (like the T4 api : >> > event.getRequestCycle().isRewinding() ) ? >> > >> > Thank you, >> > Luca >> > >> > --------------------------------------------------------------------- >> > To unsubscribe, e-mail: [EMAIL PROTECTED] >> > For additional commands, e-mail: [EMAIL PROTECTED] >> > >> > >> > >> >> -- >> http://thegodcode.net >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- http://thegodcode.net
