[Seaside] [Newbie] Seaside-Component classes

[Dmitry V. Sabanin]

Hey.

Here I am again with my stupid questions, unable to find any docs  
online.
This time my question is about classes in Seaside-Component category.
I'm trying to understand when to use what, and here's understanding  
that I have to the moment:

WAAnswerHandler
------------------------
.oO( No ideas here, but for some reason I don't think this class is  
of interest to me at this moment )

WAComponent
--------------------
.oO( Ordinary components. Pretty much no questions here. )

WADecoration
------------------
.oO( What's this? As I imagine this must be some kind of wrapper  
around ordinary components, to enhance them or wrap some code around  
them? If it's true, how do I add Decorations to my existing component? )

WADelegation
------------------
.oO( No ideas. Need help :-) )

WAPresenter
-----------------
.oO( This one just drives me crazy. I wanted to think of this as of  
some big master component that acts as a container for all  
application components. Something like "Application Component", but I  
have no idea if it's true. )

WATask
-----------
.oO( If I get this right, this is useful for something like  
Transaction Script (PoEAA)? For example, I can encapsulate some  
business logic in a WATask subclass and make it call components in a  
needed order? Or there's something else meant as a "workflow" in  
WATask class docs? )


I hope I didn't make a lot of noise in this small cozy mailing list.  
I hate to bother you guys, who are already proficient in this stuff,  
but I really want to learn St/Seaside and due to the lack of docs,  
that seems to be my only way to succeed. Thanks in advance for your  
answers and patience.

Cheers!

--
Dmitry Sabanin
http://futuretrack5.com | http://sabanin.ru/en