A good thought, but not always very practical. If there are a lot of visible nodes, and the visible nodes have a lot of children, the performance would be really bad. With the work Jacob and others are doing on the Avatar front, an AJAX request to get the nodes could take milliseconds, so the user wouldn't really notice it.
Perhaps we can make sure that someone could extend the tree and do this if they want under specific circumstances where they know it would work. -Andrew On 5/25/06, Sean Schofield <[EMAIL PROTECTED]> wrote:
Here's something to think about in your free time. I was thinking that all nodes one level below all visible closed nodes should be buffered and made visible instanly via DHTML. Then an AJAX request goes out and creates a buffer for the nodes below the one you just opened. It should be as fast as client side toggle that way but without the overhead of tens of thousands of nodes in your DOM that never get shown anyways. Sean On 5/25/06, Andrew Robinson <[EMAIL PROTECTED]> wrote: > Will do, just may be a month or two before I have time for some open > source development. > > On 5/25/06, Sean Schofield <[EMAIL PROTECTED]> wrote: > > I'm definitely interested in adding AJAX support to tree2. Perhaps > > you would like to help me with it? As a starting point you should > > familiarize yourself with the realtively new TreeWalker stuff if you > > are not already. > > > > My thinking with the TreeWalker is that it will ultimately be easier > > to render a portion of the Tree during AJAX requests b/c you can > > specify a start and end point, etc. Let me know how serious you are > > about helping and I can make some time for it. > > > > Sean > > > > On 5/25/06, Andrew Robinson <[EMAIL PROTECTED]> wrote: > > > I have used AjaxAnywhere and put a <aa:zoneJSF> tag around the tree. > > > With the Ajax4Jsf library getting some press, it would be interesting > > > to see how to make tree2 have AJAX support built in, or to create a > > > new tree component that extends or is similar to tree2 that would > > > support AJAX natively. > > > > > > I have avoided non-JSF AJAX solutions (like DOJO integration?) as I > > > want the full JSF lifecycle (no hacks) and AjaxAnywhere supports it > > > (and it looks from the website that Ajax4Jsf does as well - and does > > > it better). > > > > > > Who knows, maybe we can scrounge up a team of volunteers to integrate > > > Ajax4Jsf into some new Tomahawk and/or Sandbox components. Once I get > > > some of the projects I am working on, on the side, done I may be > > > interested in looking into this (too bad writing open source code > > > doesn't pay well - or at all). > > > > > > -Andrew > > > > > > PS - I think we need a tax amendment in the US to get tax breaks for > > > open source development > > > > > > On 5/25/06, Vesa Lindfors <[EMAIL PROTECTED]> wrote: > > > > > > > > We have also used tree2 successfully, with more or less similar requirements - but only for small trees (<100 nodes) > > > > In the near future we will also need tree for quite large amount of data (> 10 000 nodes). > > > > Andrew, it would be very usefully, if you could share some of your knowledge of combining the tree2 and Ajax... > > > > Or is there any known plans to add ajax support directly to the MyFaces tree2 component? > > > > ---VLi--- > > > > > > > > > > > > > > > > > > > > On 5/24/06, Andrew Robinson <[EMAIL PROTECTED]> wrote: > > > > > What is the problem(s) with tree2? I have been using it with the > > > > > functionality you requested. The only I find myself doing is using > > > > > server side nodes most of the time (with AJAX, as I have trees with > > > > > > 100,000 nodes), and I usually create custom tree models and custom > > > > > tree nodes as the "Base" ones don't ever have what I need. Perhaps we > > > > > can help you through your tree2 problems? > > > > > > > > > > -Andrew > > > > > > > > > > On 5/24/06, Hansjörg Meuschel <[EMAIL PROTECTED] > wrote: > > > > > > Hi > > > > > > you could take a look at http://www.ourfaces.net or > > > > > > http://www.jamesholmes.com/JavaServerFaces/#software-comp (a list of jsf > > > > > > comp.) > > > > > > I'm not sure if there is a tree meeting your requirements ... > > > > > > > > > > > > maybe this helps... > > > > > > greets hans > > > > > > > > > > > > > > > > > > Hans Sowa wrote: > > > > > > > > > > > > > Hi all > > > > > > > > > > > > > > We had a lot of problems with the tree2 component and we search now > > > > > > > for an alternative. The tree component is the most important component > > > > > > > in our webapplication and therefore this is a big risk in our > > > > > > > application. > > > > > > > > > > > > > > Following behaviour to we need: > > > > > > > - The possibility to klick on every node and to be able to react > > > > > > > (ActionListener). > > > > > > > - The possibility to show graphics on the right side of the node. > > > > > > > - The possibility to close the whole tree. > > > > > > > - The possibility to open a certain path. > > > > > > > - The possiblity to close the last path if the user opens an other > > > > > > > path. (This means only one path should open at any time and all other > > > > > > > paths should be closed). > > > > > > > - Multiselect should work. (Maybe with checkboxes). > > > > > > > - The created HTML code should be as small as possible. > > > > > > > - If the tree is created the first time we would like to open the > > > > > > > first level. > > > > > > > > > > > > > > It would be great if someone has experience with an other tree > > > > > > > component and could help me. > > > > > > > > > > > > > > Thanks in advance. > > > > > > > > > > > > > > -- > > > > > > > mfg Hans Sowa > > > > > > > mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
