And lets not forget about (User/Session scope) PullTools! The PullService
was made for this sort of thing.
-B
On Wed, 28 Nov 2001, Weaver, Scott wrote:
> Eric,
>
> I am almost positive that context is request-based, so it's kind of a one
> way deal. After the request has been serviced that information is gone.
>
> You could write a PersistentContext class that is stored within the session
> instead of the request and use a pull tool to retreive it within your
> template. Heck, you could even take your context object and store it in the
> session directly (I'm not sure if that's a good idea or not, though).
>
> doBuildTemplate(RunData data, Context context)
> {
> ....
> //store your context into the container's session for this user
>
> data.getRequest().getSession().setAttribute("persistant.context",context);
> ...
> }
>
> Scott
>
>
>
> -----Original Message-----
> From: Pugh, Eric [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, November 28, 2001 10:49 AM
> To: 'Turbine Users List'
> Subject: RE: Page Session Question
>
>
> Scott,
>
> That is definitly some great suggestions.. For a pageCounter, both
> suggestions would be great... I looked at an earlier post I made, and the
> response:
> http://www.mail-archive.com/[email protected]/msg04250.html
>
> and realized that I have been trying to figure out this question a couple
> times.
>
> I am looking for a more generic approach for any data. I don't think I can
> use static, because I want each user to have their own data. So if I store
> something that is specific to a screen and a user, I don't want to put the
> data into the userobject, and can't make it static.
>
> The post I reference mentioned putting the data into the context. While
> that seems a little weird to be putting data into the context, and then
> copying it out when I am reloading my screen, it would work. However, I
> can't seem to get it to work. If I put something into the context, should
> it be there when I reload the screen? Or do I have to do something weird
> like put the data in hidden fields on a form or something?
>
> I check the context with containsKey("pageCounter"), but always get false
> back when I reload the page.
>
> Eric
>
>
> -----Original Message-----
> From: Weaver, Scott [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, November 28, 2001 10:09 AM
> To: 'Turbine Users List'
> Subject: RE: Page Session Question
>
>
> You might want to define the pageCounter as static within your screen class.
> As long as everything is running in the same JVM, any changes made to the
> static member variable will be perserved until the container is shut down.
> You will probably want to write the pageCounter out to permanent storage
> every so often as means to perserve it if the container is shut down.
>
> Another, more OO way would be to create a PageHit class that records hits to
> a HashTable using the Screen name as a key. Make it a singleton class with
> protected constructors and static member variable that holds a reference to
> itself. Also, implement serializable, so you could write the object to disk
> to preserve it's state. Configure the class to write itself to disk after x
> number of updates if the container goes down suddenly.
>
> Just some suggestions,
> Scott
>
> -----Original Message-----
> From: Pugh, Eric [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, November 28, 2001 9:42 AM
> To: 'Turbine Users List'
> Subject: Page Session Question
>
>
> Hi all,
>
> I seem to remember that with servlets, if I declare a private variable, and
> then reload the servlet, the servlet remembers the variable. In otherwords,
> a servlet can be made stateful...
>
> Does a similar thing exist with screens? To preserve data across screens I
> have put data in the user object. What about on a single screen?
>
> I added a private int pageCounter = 0 to my screen. Then in the
> doBuildTemplate method I increment the pageCounter, and put it in the
> pageContext. However, when I reload the page, the pageCounter is always 1,
> it never seems to increment.
>
> How can I store data from one load of a screen to another? Putting stuff in
> the userObject sometimes seems kinda clumsy.
>
> Eric
>
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brian lawler
branuity
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