RE: portlet refresh,why refresh all?

["Yesberg, John" <Jo...@dsto.defence.gov.au>]

I (with my colleagues) am interested in the same thing.
We are considering creating a new controller that would use
Frames to lay out portlets, rather than a <table>. 

I recognise that maybe it's less efficient in terms of the
number of HTTP requests required, but the real issue for me
is that someone might be in the middle of typing up a long
entry into a textbox when another portlet needs to be refreshed.
If all portlets were refreshed, this user would lose everything
already typed - this doesn't allow the portlets to be very
independent.

If we get something working, I'll see if we can submit the
code.

John.

-----Original Message-----
From: Wayne A Christian [mailto:wac@genesyslab.com]
Sent: Saturday, 26 October 2002 0:27
To: Jetspeed Users List; skuhn@ice.mpg.de
Subject: RE: portlet refresh,why refresh all?


I thought there was a way to set the cache properties of each portlet so that the portal will only go to the portlet 
code if the cache is invalidated.  Then to refresh a specific portlet, one would invalidate its cache.
The other portlet contents would be retrieved from the portal cache.  Is this not available?

Wayne Christian
Sr. Staff Software Engineer
Genesys Telecommunications Labs
2100 Gateway Centre Blvd.  Suite 300
Morrisville,  NC      27560
?	Office:	(919) 466-6151
	Fax:	(919) 466-6157
?	EMail:	mailto:wac@genesyslab.com

-----Original Message-----
From: Stefan Kuhn [mailto:skuhn@ice.mpg.de]
Sent: Friday, October 25, 2002 8:58 AM
To: Jetspeed Users List
Subject: Re: portlet refresh,why refresh all?

Hi zy,
the answer is: not at all. Due to the nature of the web server / browser
communication, you always need to request a new page from the server and the
server needs to send the whole page. You can obviously achieve the effect by
leaving all the other portlets anchanged. But, to say this again, there is no
way to request only part of a web page from the server (except frames, which
you can't really use in jetspeed).
Stefan

Am Freitag, 25. Oktober 2002 04:35 schrieben Sie:
> I use a button in my VM page in one portlet:

> <input type="submit" name="eventSubmit_doUpdate" value="Confirm">

>    </input>

> but when I push the button ,all the portlets are refreshed.

> How can I only refresh the very portlet just as I want to ?

> 

>

>

>

>


--
Stefan Kuhn M. A.
MPI of Chemical Ecology, Winzerlaer Str. 10, Beutenberg Campus, 07745
Jena, Germany
Tel: +49(0)3641 571261 - Fax: +49(0)3641 571202

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