I agree with Matts points, in addition here are a couple more thoughts on
the challenge of tree navigation--
1) From a mvc design perspective, a tree is just a view; assigning
responsibility of rendering a tree to "a lot of action classes" is probably
not optimal.
2) Offhand, a key to building an effective tree view rests with thinking
about recursive associations-- ie. a container class that may contain itself
(self containment)
Here's a common example:
----------
| Folder |<>-- 1
---------- |
| * |
| |
----------
In this case, a Folder can have zero or more subfolders-- thus yielding a
hierarchy, or tree :) Each folder can be contained by exactly one folder.
With this model in mind, I believe you should consider creating a custom tag
that expects this *type* of structure. Ideally, you're new "tree" tag would
only need to rely on interfaces from the java collections framework.
Regards,
Levi
----- Original Message -----
From: "Gogineni, Pratima" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 19, 2001 10:09 AM
Subject: Tree
> Hi
>
> I have been thinking for a while about making a "tree" jsp component using
> struts. I like the idea of having a jsp based tree rather than using the
> javascript trees that are normally used.
>
> I know I will have to write a lot of action classes to support a *Good*
> generic tree. But does anyone know of any problems with using a jsp based
> tree rather than javascript based?
>
> Thanks
> Pratima
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, July 19, 2001 9:05 AM
> To: [EMAIL PROTECTED]
> Subject: struts-layout
>
>
> Hi there!
>
> I am happy to inform you that the 0.3 version of struts-layout has been
> released on <http://struts.application-servers.com>. struts-layout is a
tag
> library for Struts that allows for fast and easy development of jsp pages.
> With
> struts-layout, pages are described with only a small set of special tags.
> HTML
> tags are not any more needed (well, nearly), as struts-layout tags
generates
>
> the layout. I kindly invite you to have a look on the site for more
> information.
>
> struts-layout is now used in my company's projects and in
> <http://www.application-servers.com>, a French site dedicated to
information
>
> about application servers. French users can also find an introduction to
> Struts
> and struts-layout on this site in the article section.
>
> Please feel free to send me feedbacks and bug reports.
>
> Cheers,
>
> Jean-Noel
>
