dataTable decoding large result sets... poor performance

[borlander]

Hello all,

I'm developing a JSF page with just a rich:dataTable (plus rich:dataScroller for pagination) component and an h:inputText together with a4j:support that handles "onkeyup" event so that the dataTable refreshes its content via Ajax (the inputText component's content is used as a filter to the dataTable).

The point is that during the Ajax request, dataTable's decode phase iterates over its whole result set (whatever you assign in its "value" attribute), not just the ones it's showing.

If I have no filter (the inputText is empty) it has to iterate over 15000 registers, so it's really slow (20 seconds or so to process Ajax request). If I write something into the inputText, the Ajax request is faster because the result set is quite smaller.

Is there any way to avoid dataTable's decode phase? I mean, I just use is to "show information", not to edit it, so I need no "decode" of dataTable's value...

Is it possible? Is there any other solution?

Thanks in advance!

[nbelaevski]

You can set ajaxSingle="true" for a4j:support to skip processing of another components

[borlander]

:-) Thank you so much! It worked!

I thought I had reviewed the documentation for every attribute, but you ca guess I didn't do it well at all :-)

I've also implemented a SerializableDataModel in order to control the number of records being encoded and everything's much fater now.

Thanks a lot!!

[wandrey]

Can you expose and explain your solutions?
Its like this:

http://jboss.com/index.html?module=bb&op=viewtopic&t=125952
and
http://jboss.com/index.html?module=bb&op=viewtopic&t=104082
Can you share your view and controller layer?

[antoine_h]

Hello,

I would appreciate a lot also to see the view and the controler layer...
and the SerializableDataModel...

Is there a "RichFaces Swap" ?

Like the jboss Portlet Swap : a place where to provide and share some nice samples...

things that may not be in the distribution of RichFaces...
but very usefull aside of it.

(may be there is a "RichFaces Swap" ?)

*************
For the manipulation of data in the dataModel of the dataTable and all the Iteration components : I guess there can be many different solutions.
each with some advantages.

The "RichFaces Swap" would be great to share that.