RE: [wsia][wsrp-interfaces] Is sessionID transparent to the Consu mer?

I believe they should be 
distinct.

Let's take a normal web application, and we'll use one which 
_is_ "session-stateful", i.e. has a session. In most cases, this application 
will not only store things in the session, it will also continue to store things 
in the URL. Why? Because the information in the URL is (to coin a phrase) 
"bookmarkable", i.e. the user expects that if it bookmars the page, it will 
return to it when using the bookmark. In session-based applications, this may 
happen after a "re-login", but if enough information is stored in the URL, it 
will happen. If the app had stored everything in the session, it would not have 
supported this.

To sum it up, a stateful application stores its state 
both in the URL and in the session. The URL state is usually "bookmarkable" (or 
"navigation") state, while the session state isn't.

Going back to 
WSIA/WSRP, the Producer must _hint_ to the Consumer what state is which type, 
and thus the separation between markupParams and sessionID. The Producer 
_expects_ the Consumer to store the markupParams in its URL and the sessionID in 
its session. This is only a suggestion, because of course the Consumer CAN do 
whatever it wants.

Maybe markupParams 
should thus be called "interactionParams" (or "interactionState") because it 
stores navigation/interaction state, and thus its difference from session would 
be more clear.

 

Gil

-----Original 
Message-----
From: Rich Thompson [mailto:]
Sent: Mon, July 15, 
2002 20:53
To: ; 

Subject: [wsia][wsrp-interfaces] Is 
sessionID transparent to the
Consumer?

Having the sessionID be 
transparent originally was to allow the Consumer to
indicate when a Producer 
could reclaim the related resources. As was
mentioned in a side conversation 
at the face-to-face, other references
within the markupParams may also want 
such an indication. Any other reason
to keep sessionID as a separate data 
item?

                                                                                                                   
                      
"Tamari, 
Yossi"                                                                              
                      
<yossi.tamari@sap        
To:       
,                                
                      
.com>                     
                               
                                               
cc:                                                                 
                      
07/15/2002 12:47         Subject:  
RE: [wsia][wsrp-interfaces] Refactoring the data 
objects  
                      
PM                                                                                           
                                                                                                                   
                                                                                                                   

See 
my comments marked with [YT].
(Most of them are in appendix A, since it seems 
appendix a is the real
definition of the spec, which I think is wrong, and is 
a result of what
Rich mentioned below about the obscurity of the 
interface.)

The endless debate about putting WSIA concepts in the WSRP 
standard is
still there...

      
Yossi.

-----Original Message-----
From: Rich Thompson [mailto:]
Sent: Friday, July 
12, 2002 9:09 PM
To: ; 

Subject: [wsia][wsrp-interfaces] 
Refactoring the data objects

As requested in Tuesday's Joint 
interfaces call, I have reworked the draft
spec in an effort to factor the 
data items into the scopes presented at the
June F2F. Personally I think this 
obscures too much and that some of the
data items should move up to first 
class parameters in the interface.
Hopefully this version can provide a 
reasonable basis for a discussion of
which items should be promoted either 
for clarity or as part of supporting
any factoring of the 
operations.

Technical note: In order to make this readable but yet leave 
an indication
of what was modified, I accepted the changes and then appended 
a space on
the end of changed lines so that a change bar will appear on the 
left. So
much changed in Appendix A that it all should be considered 
modified.

(See attached file: WSIA - WSRP Interface 
Specification.doc)

#### WSIA - WSRP Interface 
Specification1.doc has been removed from this
note on July 15 2002 by Rich 
Thompson

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