[Stop rendering] Can I stop the page from rendering (as it normally would?)

["F. Da Costa" <da...@xs4all.nl>]

Hi,

I'm running into something that I've been trying to dodge for a while.
Helas, no longer.

On the client there is a fully rendered and operational JS-object that does 
a lot of stuff and babbles nicely with Tapestry.
There is this little thing however that I would like to change/ stop.

On submission of the page the whole 'thing' gets re-rendered, which is 
perfectly fine from a tapestry p.o.v.
However, this is a feature I want to turn off (or change radically) for 
this particular page.
My question is: *How* do i go about this?

Do I conditionally override renderSomething?
Do use a @Conditional in the .html?
...?

Any suggestion appreciated.

TIA
Fermin DCG


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Re: [Stop rendering] Can I stop the page from rendering (as it normally would?)

["F. Da Costa" <da...@xs4all.nl>]

Howard M. Lewis Ship wrote:

> Why would you now want the page to render?  That is, please provide more details about the
> interaction you have between your client-side JavaScript and your application.  My suspcion is that
> you are trying to use the page or direct service to do something against thier nature, and the right
> course of action is to create a new engine service for implementing the interaction you desire
> (engine services are similar in concept to servlets).
> 
Sorry for being too incomplete in my explanation (not my strongest point).
I'll try to be more elaborate this time.

The situation is as follows:
In my effort to try and keep server traffic as low as possible I put 
together a TreeTable (containing editable, checkbox, Link, popup fields) 
that basically maintains its state on the client. I it also contains its 
own search functionality etc. Thus covering a significant number of tasks 
that would otherwise go server-side.

One of the main reasons for this is the size of the structure (3000+ rows) 
and the potential number of users utilizing it.
In the current situation the user can do what he likes, only 'bothering' 
the server when he actively chooses to. No intermediate trips to the server 
have to be made.
At this point I gather the delta (kept on clientside as well) and send the 
form result to the server for processing. This goes fine.

After processing the page is re-rendered, as is expected.
With this particular page this is *not* necessary because the 
'server-state' is basically already in place on the client.
IF the server threw an error ONLY then would a complete re-render be 
requested (from the client).

Once the page is initialized on the client there would be *no* reason to 
re-render *unless* the client actively requests for this.
In short: the page needs to conditionally render itself or a part thereof.

... a part thereof ... is something that has been bouncing around in my 
head as well in the following way.
Looking at a tree structure one would ideally like to see dynamic loading 
of detailTbodies (the segment skeleton would already be in place).
As I work with the DOM on the client it would allow me to quite easily 
insert a new tbody into the whole. The big challenge however would be to 
only do the partial render of this particular 'bit'. But maybe your 
suggestion re. the ExternalPage could serve some purpose here as well.

That's it.
I hope this makes more sense.



> --
> Howard M. Lewis Ship
> Creator, Tapestry: Java Web Components
> http://jakarta.apache.org/tapestry
> http://jakarta.apache.org/commons/sandbox/hivemind/
> http://javatapestry.blogspot.com
> 
> 
>>-----Original Message-----
>>From: news [mailto:news@sea.gmane.org] On Behalf Of F. Da Costa
>>Sent: Friday, January 02, 2004 1:50 PM
>>To: tapestry-user@jakarta.apache.org
>>Subject: [Stop rendering] Can I stop the page from rendering 
>>(as it normally would?)
>>
>>
>>Hi,
>>
>>I'm running into something that I've been trying to dodge for a while.
>>Helas, no longer.
>>
>>On the client there is a fully rendered and operational 
>>JS-object that does 
>>a lot of stuff and babbles nicely with Tapestry.
>>There is this little thing however that I would like to change/ stop.
>>
>>On submission of the page the whole 'thing' gets re-rendered, 
>>which is 
>>perfectly fine from a tapestry p.o.v.
>>However, this is a feature I want to turn off (or change 
>>radically) for 
>>this particular page.
>>My question is: *How* do i go about this?
>>
>>Do I conditionally override renderSomething?
>>Do use a @Conditional in the .html?
>>...?
>>
>>Any suggestion appreciated.
>>
>>TIA
>>Fermin DCG
>>
>>
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>>To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
>>For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>>
> 
> 
> 
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RE: [Stop rendering] Can I stop the page from rendering (as it normally would?)

["Howard M. Lewis Ship" <hl...@comcast.net>]

Why would you now want the page to render?  That is, please provide more details about the
interaction you have between your client-side JavaScript and your application.  My suspcion is that
you are trying to use the page or direct service to do something against thier nature, and the right
course of action is to create a new engine service for implementing the interaction you desire
(engine services are similar in concept to servlets).

--
Howard M. Lewis Ship
Creator, Tapestry: Java Web Components
http://jakarta.apache.org/tapestry
http://jakarta.apache.org/commons/sandbox/hivemind/
http://javatapestry.blogspot.com

> -----Original Message-----
> From: news [mailto:news@sea.gmane.org] On Behalf Of F. Da Costa
> Sent: Friday, January 02, 2004 1:50 PM
> To: tapestry-user@jakarta.apache.org
> Subject: [Stop rendering] Can I stop the page from rendering 
> (as it normally would?)
> 
> 
> Hi,
> 
> I'm running into something that I've been trying to dodge for a while.
> Helas, no longer.
> 
> On the client there is a fully rendered and operational 
> JS-object that does 
> a lot of stuff and babbles nicely with Tapestry.
> There is this little thing however that I would like to change/ stop.
> 
> On submission of the page the whole 'thing' gets re-rendered, 
> which is 
> perfectly fine from a tapestry p.o.v.
> However, this is a feature I want to turn off (or change 
> radically) for 
> this particular page.
> My question is: *How* do i go about this?
> 
> Do I conditionally override renderSomething?
> Do use a @Conditional in the .html?
> ...?
> 
> Any suggestion appreciated.
> 
> TIA
> Fermin DCG
> 
> 
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> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
> 


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