Thiago,
It turned out that I didn't need bi-directional traversal of the page
history, just backtracking. So I went with a stack of objects that
encapsulated all the page data I needed to persist. Works great!
Question: To clear the persisted stack, do I need to do anything other than
set it to null when I'm done with it?
Best,
George
On Fri, Aug 3, 2012 at 8:01 PM, Thiago H de Paula Figueiredo <
thiag...@gmail.com> wrote:
> On Fri, 03 Aug 2012 19:32:13 -0300, George Ludwig <georgelud...@gmail.com>
> wrote:
>
> Thiago,
>>
>
> Hi, George!
>
>
> Thanks, that's what I thought was going on. Off the top of my head, my
>> thought is to create an aggregating data structure that holds all the
>> fields I really need (including a page id, and a previous page id), and
>> persist a list of them. Then, in my "onback" method, pass the index of
>> the previous page to the setup method.
>>
>
> Sounds good to me.
>
>
> Is there a "best practice" for doing this?
>>
>
> As far as I know, no, so go ahead. :) The only related best practice I can
> think of is to only use session persistence when really needed and to
> remove stuff from the session when it's not needed anymore.
>
>
>> -George
>>
>>
>> On Thu, Aug 2, 2012 at 6:38 PM, Thiago H de Paula Figueiredo <
>> thiag...@gmail.com> wrote:
>>
>> On Thu, 02 Aug 2012 22:11:47 -0300, George Ludwig <
>>> georgelud...@gmail.com>
>>> wrote:
>>>
>>> Thiago,
>>>
>>>>
>>>>
>>> Hi!
>>>
>>>
>>>
>>> The previouspage object is referenced when we execute the continue
>>>> method,
>>>> which is what advances to the next iteration:
>>>>
>>>> @InjectPage
>>>> private Refine refine;
>>>>
>>>> Object onContinue() throws Exception {
>>>>
>>>> // do a bunch of business logic
>>>>
>>>> refine.setup(this);
>>>>
>>>> return refine;
>>>>
>>>> }
>>>>
>>>>
>>> Yep, what you're seeing is expected. The object is always the same
>>> because
>>> since Tapestry 5.2 there's a single instance of each page class. Instead
>>> of
>>> persisting the page instance, persist the data with one or more @Persist
>>> fields.
>>>
>>>
>>> --
>>> Thiago H. de Paula Figueiredo
>>>
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>
> --
> Thiago H. de Paula Figueiredo
>
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