In my approach, I used lazy loading of the model because we didn't
have the nodes up front like you do. Getting the children of each
folder was a database call with a lot of children, so getting the tree
all up front would have been really bad for us.
Slow rendering cannot be fixed if the tree is large without a lot of
work. The slow rendering, I find, is due to a lot of HTML generated by
the tree2 component.
We ended up ditching tree2 for most of our trees and started using
JBoss RichFaces tree with A4J to do the updating. Since it uses AJAX,
it was much more suited for large trees and server-side node
expansion. Only time that performance became a problem was for trees
that were initially expanded.
On 7/9/07, Novin <[EMAIL PROTECTED]> wrote:
Hi Andrew,
When I compare my code with your blog
Currently wht I m doing:
I m using treebean which contanins a rootnode and when user click on any
node I found the selected node and make an db call and add child node to
that node programatically. and there is no role of treeModel in my bean I
have just defined it as a reference variable.
is this reason why my tree is loading slow.
Your approach:
If i will create a lazynode which will extend the TreeNode. and I will use
this lazyNode as refernce variable in the treebean and will override the
loadChildren() method of lazynode ( which will call db and get the list of
the child node and set it). This will solve my problem of slow rerendering
of tree.
I am attaching the my treebean with this code.
One more thing which I want to bring in ur notice is that I m using treeData
instead of treeModel to load the tree. Will this lead to any issue related
to slow rerendering of the tree.
<t:tree2 id="clientTree" value="#{accountTreeBean.treeData}" var="node"
varNodeToggler="t"
clientSideToggle="false">
http://www.nabble.com/file/p11504455/AccountTreeBean.java
AccountTreeBean.java
Hope I m not bothering you much!
Thanks
Novin
Andrew Robinson-5 wrote:
>
> Have you read my blog?
>
>
http://andrewfacelets.blogspot.com/2006/06/myfaces-tree2-creating-lazy-loading.html
>
> Or read the wiki?
>
> http://wiki.apache.org/myfaces/Tree2
>
> -Andrew
>
>
> On 7/6/07, Novin <[EMAIL PROTECTED]> wrote:
>>
>> Hi Friends,
>>
>> I am using serverside Tree2 with ajax and tiles.
>>
>> My tree has 3 level excluding root node.
>>
>> root
>> ' (Level-1)
>> -------Group name (Level-2)
>> '--------------Group number (Level-3)
>> '......................Accounts
>>
>> Problem:1
>>
>> when I click on grpName node it fetches & create the child grpnumber
>> node,
>> but at the time of re-rendering the tree is not expaneded till
>> groupnumbers(child nodes), it show (+) image at grpname(parent node).
>> Then
>> again I need to click on + to view the child.
>>
>> I want the tree to be expanded till the childs how its possible
>> programatically?
>>
>> Problem:2
>>
>> When I click any of the node(every node click is ajax request), behind
>> the
>> scene in my tree bean(which is in session) the data fetching logic works
>> fine and create and append the childnode to the parent to the treebean.
>>
>> then due to problem 1 i have again click on the + img and if child node
>> are
>> more then 40 it take around 2minutes to referesh and reload tree. Wht i
>> found its look like Tile is taking lots of time in commiting the
>> response.
>>
>> Pls let me know the solution.
>>
>> I am attaching the JSP file
>> http://www.nabble.com/file/p11468451/accountTree.jsp accountTree.jsp
>>
>> thanks ...
>> Novin
>>
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>>
http://www.nabble.com/Tree2%3A-Serverside-Tree-rerendering-is-very-slow-in-with-Tiles.-Pls-help-tf4036770.html#a11468451
>> Sent from the MyFaces - Users mailing list archive at Nabble.com.
>>
>>
>
>
--
View this message in context:
http://www.nabble.com/Tree2%3A-Serverside-Tree-rerendering-is-very-slow-in-with-Tiles.-Pls-help-tf4036770.html#a11504455
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