In tapestry 4 you should use the pageBeginRender method and implement the PageBeginRenderListener. You should be able to initialize any page properties you want here.
There is also a coresponding pageEndRender and PageEndRenderListener but I dont think its used quite as much, but its there. -Nick On 9/17/05, Tomáš Drenčák <[EMAIL PROTECTED]> wrote: > Yes initialize method is good and even its name sounds like it's > initializing smth. I have used it in tapestry 3 but now it is > deprecated. Is there an alternative method to initialize? > > 2005/9/17, Muralidhar Y. <[EMAIL PROTECTED]>: > > > > hi some times I got error when I am not passing IRequestCycle as parameter > > to listener method. > > > > To initialize the parameters there is initialize method you also can have a > > look at detach method and see.page begin render is , if you want to do > > something before any component renders itself. Page validate is if you want > > to do any validations like user is authenticated or not and any other page > > validations you can use it. > > > > > > Muralidhar Y > > Software Engineer, > > Adastrum technologies-Nikai groups, > > EmiratesGroup-I.T Division, > > Dubai, UAE. > > Mobile : 00971-50-2256149. > > http://www.adastrumtech.com > > http://www.mercator.aero > > (Keep Smiling. Be happy All The Time.) > > > > -----Original Message----- > > From: Alan Chandler [mailto:[EMAIL PROTECTED] > > Sent: 16 September 2005 22:49 > > To: [email protected] > > Subject: Re: jwc files and annotations > > > > On Friday 16 September 2005 18:29, Tomáš Drenčák wrote: > > > Thanks a lot. > > > > > > Another question... You are using pageValidate to set up thisPerson > > > property. I'm still little bit confused about page initialization. > > > What are pageBeginRender, pageValidate and prepareForRender for? Where > > > to initialize e.g. thisPerson from passed personId parameter? I've > > > used pageBeginRender, lazy initialization, but which method is > > > specially designed for this purpose? > > > > > > I must admit, this was a bit trial and error. > > > > I pass the personId parameter via the following code in another component. > > > > > > @InjectPage("Details") > > public abstract Details getDetailsPage(); > > > > public IPage doShowDetails(int personId) { > > Details details = getDetailsPage(); > > details.setPersonId(personId); > > return details; > > } > > } > > > > Where this code gets set up in the html template for this component as > > > > <div class="surname"> > > <span jwcid="@DirectLink" > > listener="listener:doShowDetails" > > parameters="ognl:person.id" > > ><span jwcid="@Insert" > > value="ognl:person.surname" > > >Chandler</span></span> > > </div> > > > > > > I think PageBeginRender failed (thinking back to when I orginally had it > > here) because there seems to be a validation phase of the page before then, > > and I had not set up the record, and had null pointer exceptions. > > > > I think the page initialisation failed because the setPersonId call hadn't > > happened (maybe - difficult to remember now) the initialisation got called > > when I did the first call to getDetailsPage in the listener above. > > > > -- > > Alan Chandler > > http://www.chandlerfamily.org.uk > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > >
