[Zope] How slow are Transparent folders?

[Joachim Werner]

> I don't think they are slow, in that they just patch the way that
namespace
> traversal is done and add a few namespaces... but they are definitely
buggy;
> they will break CoreSessionTracking if you want to use more than one
session
> id manager, among other things...

Hi!

Transparent Folder ARE indeed slow. If you just use one or two and don't put
much into them, it's fine. But we had sites with many nested
TransparentFolders, and rendering the management screen (manage_main)
sometimes took a couple of seconds instead of half a second or so with
TransparentFolders removed. They make the system look up many more
namespaces than necessary I guess. Stephan Richter wrote some "flatten"
skript, so you can use TransparentFolders at design time and remove them all
at once later. It's not a perfect solution however.

We didn't have any problems with bugginess so far ...

One solution I am personally working on is folders that just "register" or
filter certain types of objects, so that you can have a folder (or tab) that
shows all your SQL methods for example, though they actually are all in your
root folder.


Joachim