From owner-ietf-calendar@mail.imc.org  Fri Jan  9 10:46:33 2004
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To: George Babics <george.babics@oracle.com>
Cc: ietf-calendar@imc.org, owner-ietf-calendar@mail.imc.org
Subject: Re: "and so this is Christmas, and what have you done?"
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Yes, that sounds like a good idea too.  It helps separate the issues and 
makes for easier reading.



George Babics <george.babics@oracle.com> 
Sent by: owner-ietf-calendar@mail.imc.org
01/06/2004 13:04

To
ietf-calendar@imc.org
cc

Subject
Re: "and so this is Christmas, and what have you done?"








Helge Hess wrote:
> 
> On 10.12.2003, at 19:14, pregen@egenconsulting.com wrote:
> 
>> Helge, this is a great idea.  It would be great if you can do that for 
>> us.
> 
> 
> No problem, I've just created:
> - a CALSCH product, which is the entry point for the group
> - a component (read: topic/category) "general" for general issues
> - a user "ietf-calendar@imc.org" which is set as the initial owner
>   for "general" issues (receives mail on each issue)
> 

   Should we have a topic/category for each rfc or draft, i.e., separate
categories for iMIP, iTIP, CAP, and iCalendar? Even though our current
focus is on CAP, people may want to submit issues or bugs relating to
the other docs.

George



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<br><font size=2 face="sans-serif">Yes, that sounds like a good idea too.
&nbsp;It helps separate the issues and makes for easier reading.</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>George Babics &lt;george.babics@oracle.com&gt;</b>
</font>
<br><font size=1 face="sans-serif">Sent by: owner-ietf-calendar@mail.imc.org</font>
<p><font size=1 face="sans-serif">01/06/2004 13:04</font>
<td width=59%>
<table width=100%>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td valign=top><font size=1 face="sans-serif">ietf-calendar@imc.org</font>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td valign=top>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td valign=top><font size=1 face="sans-serif">Re: &quot;and so this is
Christmas, and what have you done?&quot;</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2><tt><br>
<br>
Helge Hess wrote:<br>
&gt; <br>
&gt; On 10.12.2003, at 19:14, pregen@egenconsulting.com wrote:<br>
&gt; <br>
&gt;&gt; Helge, this is a great idea. &nbsp;It would be great if you can
do that for <br>
&gt;&gt; us.<br>
&gt; <br>
&gt; <br>
&gt; No problem, I've just created:<br>
&gt; - a CALSCH product, which is the entry point for the group<br>
&gt; - a component (read: topic/category) &quot;general&quot; for general
issues<br>
&gt; - a user &quot;ietf-calendar@imc.org&quot; which is set as the initial
owner<br>
&gt; &nbsp; for &quot;general&quot; issues (receives mail on each issue)<br>
&gt; <br>
<br>
 &nbsp; Should we have a topic/category for each rfc or draft, i.e., separate<br>
categories for iMIP, iTIP, CAP, and iCalendar? Even though our current<br>
focus is on CAP, people may want to submit issues or bugs relating to<br>
the other docs.<br>
<br>
George<br>
<br>
</tt></font>
<br>
--=_alternative 006A230185256E13_=--


From owner-ietf-calendar@mail.imc.org  Fri Jan  9 10:46:46 2004
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Subject: Re: "and so this is Christmas, and what have you done?"
References: <OF76EEF766.3DC7D57D-ON85256DF8.00555FA3-85256DF8.00564072@notesdev.ibm.com> <3FD746C7.1020106@centive.com> <3FD785BA.8090300@Royer.com>
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Doug Royer wrote:

> Should there be a monthly post to this list saying ...go...here ... for 
> issue list?
> Else it may be a FAQ.
> 

The monthly post or FAQ should also include the "rules of engagement" sent by
Bob Morgan, and any other essential information that a newcomer should know.

George




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Subject: Re: "and so this is Christmas, and what have you done?"
References: <OFD7EF9793.F82998BB-ON85256DF8.00643423-85256DF8.00643ECD@egenconsulting.com> <22F5CB4B-2B40-11D8-8033-000393C29C2A@skyrix.com>
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Helge Hess wrote:
> 
> On 10.12.2003, at 19:14, pregen@egenconsulting.com wrote:
> 
>> Helge, this is a great idea.  It would be great if you can do that for 
>> us.
> 
> 
> No problem, I've just created:
> - a CALSCH product, which is the entry point for the group
> - a component (read: topic/category) "general" for general issues
> - a user "ietf-calendar@imc.org" which is set as the initial owner
>   for "general" issues (receives mail on each issue)
> 

   Should we have a topic/category for each rfc or draft, i.e., separate
categories for iMIP, iTIP, CAP, and iCalendar? Even though our current
focus is on CAP, people may want to submit issues or bugs relating to
the other docs.

George



From owner-ietf-calendar@mail.imc.org  Mon Jan 12 15:08:32 2004
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FYI

This is pass zero of iTIP and CAP examples.

---------------------------------------------------------------------------------------------

A New Internet-Draft is available from the on-line Internet-Drafts
directories.


	Title		: iCalendar Scheduling
	Author(s)	: D. Royer
	Filename	: draft-royer-calsch-sched-ex-00.txt
	Pages		: 48
	Date		: 2004-1-7
	
A proposal to specify booked persistent data in calendar stores to
track 'SEQUENCE' and 'DTSTAMP' property values for CUAs with direct
access to calendar stores.

With iMIP the iCalendar CUA's do not see the others stored CS data.
With WebDAV, HTTP, or FTP access, the CUA can see into the public data
of other calendars. The storage of persistent data mandated by [iTIP]
has not been standardized yet. This memo proposes a way to standardize
on those persistent items.

Also included are ways to make the various ways of using the [iCAL] and
[iTIP] 'RECURRENCE-ID' property work between vendors and to document
the procedures to work with 'RECURRENCE-ID's.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-royer-calsch-sched-ex-00.txt

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-- 

Doug Royer                     |   http://INET-Consulting.com
-------------------------------|-----------------------------
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--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Calendaring and Scheduling Working Group of the IETF.

	Title		: Calendar Access Protocol (CAP)
	Author(s)	: D. Royer
	Filename	: draft-ietf-calsch-cap-12.txt
	Pages		: 143
	Date		: 2004-1-13
	
The Calendar Access Protocol (CAP) is an Internet protocol described
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User Agent (CUA) to access an [iCAL] based Calendar Store (CS).
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From owner-ietf-calendar@mail.imc.org  Mon Jan 19 11:04:50 2004
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Subject: Errors in RRULE examples in RFC2445?
Date: Mon, 19 Jan 2004 21:13:06 +0530
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Hi all,


Is this an error in the RRULE examples in RFC 2445, in section 4.8.5.4?

I have found that two of the rules in the RFC include the last occurrence,
even though it occurs later than the UNTIL date-time.

I tried searching though the mailing list archives, but could not find any
previous postings on these errors.



=======
[Page 119]
Everyday in January, for 3 years:

     DTSTART;TZID=US-Eastern:19980101T090000
     RRULE:FREQ=YEARLY;UNTIL=20000131T090000Z;
      BYMONTH=1;BYDAY=SU,MO,TU,WE,TH,FR,SA
     or
     RRULE:FREQ=DAILY;UNTIL=20000131T090000Z;BYMONTH=1

     ==> (1998 9:00 AM EDT)January 1-31
         (1999 9:00 AM EDT)January 1-31
         (2000 9:00 AM EDT)January 1-31
=======

1. It should be EST instead of EDT? (A typo?)
2. Last occurrence (2000 09:00 Jan 31) should not be included.

The last occurrence is on (2000 09:00 EST Jan 31)
which is equivalent to    (2000 14:00 UTC Jan 31).

This is definitely later than UNTIL (2000 09:00 UTC Jan 31),
so should be excluded.


=======
[Page 125]
Every 3 hours from 9:00 AM to 5:00 PM on a specific day:

     DTSTART;TZID=US-Eastern:19970902T090000
     RRULE:FREQ=HOURLY;INTERVAL=3;UNTIL=19970902T170000Z

     ==> (September 2, 1997 EDT)09:00,12:00,15:00
=======


1. Again last occurrence (1997 15:00 PM Sep 2) should not be included.

The last occurrence is on (1997 15:00 EDT Sep 2)
which is equivalent to    (1997 19:00 UTC Sep 2).

This is definitely later than UNTIL (1997 17:00 UTC Sep 2),
so should be excluded.





Somebody please comment.
Let me know if my interpretation is correct or not?



Thanks,
Shriram.



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To: ietf-calendar@imc.org
Subject: CAP-12: Bad changes to REQUEST-STATUS
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I see in the published CAP-12 draft that there is still a section for 
changes to REQUEST-STATUS.  Besides being incorrectly listed under Section 
8  New Properties (REQUEST-STATUS is _not_ a new property) the proposed 
change has no technical need for CAP or any actual WG discussion. 

The biggest problem I see with Section 8.28 REQUEST-STATUS property is a 
change to the base iCalendar REQUEST-STATUS defintion that is NOT 
backwards compatible effectively making the current iCalendar/iTIP/iMIP 
implementations unable to send/receive a CAP iCalendar stream (and would 
make a CAP parser treat a valid 2445 REQUEST-STATUS as incomplete).

The current 2445 ABNF for REQUEST-STATUS is:

     rstatus    = "REQUEST-STATUS" rstatparam ":"
                  statcode ";" statdesc [";" extdata]

     rstatparam = *(
                ; the following is optional,
                ; but MUST NOT occur more than once

                (";" languageparm) /

                ; the following is optional,
                ; and MAY occur more than once

                (";" xparam)
                )

     statcode   = 1*DIGIT *("." 1*DIGIT)
     ;Hierarchical, numeric return status code

     statdesc   = text
     ;Textual status description

     extdata    = text
     ;Textual exception data. For example, the offending property
     ;name and value or complete property line.

     text       = *(TSAFE-CHAR / ":" / DQUOTE / ESCAPED-CHAR)
     ; Folded according to description above

(text added for reference).  The proposed new ABNF for REQUEST-STATUS is:

   rstatus  = "REQUEST-STATUS" rstatparam ":"
              statcode ";" [ statdesc ] ";" [ extdata ]

Essentially the change is to _require_ the addition of an extra semicolon 
on REQUEST-STATUS.  This has never been identified as a problem nor has 
there been any justification for this non-backwards compatible change even 
though the issue has been pointed out at least 2 times before now.  Since 
statdesc is text and that can be 0 or more characters there is no actual 
need to change the ABNF to make statdesc optional; it can be derived 
already using the 2445 ABNF.

Even the examples shown immediately below the text are incorrect given the 
changed ABNF:

   REQUEST-STATUS:2.0;Success

violates the proposed ABNF.  It MUST have a trialing semicolon after 
"Success".  The same goes for ALL the other examples.

I have no problems with the clear need for adding new classes of 
REQUEST-STATUS values (under statcode) but I do have a BIG problem with 
making an unnecessary change like this thats not backwards compatible AND 
fixes NO problem.

I propose that we simply remove Section 8.28 entirely since it does 
nothing to describe the new changes it mentiones on page 17:

   REQUEST-STATUS -  The [iCAL] "REQUEST-STATUS" property is extended to
      include new error numbers. (Section 8.28)

or at a minimum we restore the RFC 2445 ABNF and just use Section 8.28 to 
provide a description of the new statclasses (as promised last Feb) 
instead.  At least RFC 2445 had a desription of the classes that we need 
for CAP.  Here is a snippet from 2445 that we need in CAP:

   The following are initial classes for the return status code.
   Individual iCalendar object methods will define specific return
   status codes for these classes. In addition, other classes for the
   return status code may be defined using the registration process
   defined later in this memo.

     |==============+===============================================|
     | Short Return | Longer Return Status Description              |
     | Status Code  |                                               |
     |==============+===============================================|
     |    1.xx      | Preliminary success. This class of status     |
     |              | of status code indicates that the request has |
     |              | request has been initially processed but that |
     |              | completion is pending.                        |
...

Bruce
===========================================================================
Bruce Kahn                                INet: 
Bruce_Kahn@notesdev.ibm.com
Messaging & Collaboration                 Phone: 978.399.6496
IBM Software Group                         FAX: and nothing but the FAX...
Standard disclaimers apply, even where prohibited by law...
--=_alternative 0063198585256E20_=
Content-Type: text/html; charset="US-ASCII"


<br><font size=2 face="sans-serif">I see in the published CAP-12 draft
that there is still a section for changes to REQUEST-STATUS. &nbsp;Besides
being incorrectly listed under Section 8 &nbsp;New Properties (REQUEST-STATUS
is _not_ a new property) the proposed change has no technical need for
CAP or any actual WG discussion. &nbsp;</font>
<br>
<br><font size=2 face="sans-serif">The biggest problem I see with Section
8.28 REQUEST-STATUS property is a change to the base iCalendar REQUEST-STATUS
defintion that is NOT backwards compatible effectively making the current
iCalendar/iTIP/iMIP implementations unable to send/receive a CAP iCalendar
stream (and would make a CAP parser treat a valid 2445 REQUEST-STATUS as
incomplete).</font>
<br>
<br><font size=2 face="sans-serif">The current 2445 ABNF for REQUEST-STATUS
is:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp;rstatus &nbsp; &nbsp;= &quot;REQUEST-STATUS&quot;
rstatparam &quot;:&quot;<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;statcode
&quot;;&quot; statdesc [&quot;;&quot; extdata]<br>
<br>
 &nbsp; &nbsp; rstatparam = *(<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;; the following
is optional,<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;; but MUST NOT
occur more than once<br>
</tt></font>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
(&quot;;&quot; languageparm) /<br>
<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;; the following
is optional,<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;; and MAY occur
more than once<br>
<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(&quot;;&quot;
xparam)<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;)<br>
<br>
 &nbsp; &nbsp; statcode &nbsp; = 1*DIGIT *(&quot;.&quot; 1*DIGIT)<br>
 &nbsp; &nbsp; ;Hierarchical, numeric return status code<br>
<br>
 &nbsp; &nbsp; statdesc &nbsp; = text<br>
 &nbsp; &nbsp; ;Textual status description<br>
<br>
 &nbsp; &nbsp; extdata &nbsp; &nbsp;= text<br>
 &nbsp; &nbsp; ;Textual exception data. For example, the offending property<br>
 &nbsp; &nbsp; ;name and value or complete property line.</tt></font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp;text &nbsp; &nbsp; &nbsp; = *(TSAFE-CHAR
/ &quot;:&quot; / DQUOTE / ESCAPED-CHAR)<br>
 &nbsp; &nbsp; ; Folded according to description above</tt></font>
<br>
<br><font size=2 face="sans-serif">(text added for reference). &nbsp;The
proposed new ABNF for REQUEST-STATUS is:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;rstatus &nbsp;= &quot;REQUEST-STATUS&quot;
rstatparam &quot;:&quot;<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;statcode &quot;;&quot;
[ statdesc ] &quot;;&quot; [ extdata ]<br>
</tt></font>
<br><font size=2 face="sans-serif">Essentially the change is to _require_
the addition of an extra semicolon on REQUEST-STATUS. &nbsp;This has never
been identified as a problem nor has there been any justification for this
non-backwards compatible change even though the issue has been pointed
out at least 2 times before now. &nbsp;Since statdesc is text and that
can be 0 or more characters there is no actual need to change the ABNF
to make statdesc optional; it can be derived already using the 2445 ABNF.</font>
<br>
<br><font size=2 face="sans-serif">Even the examples shown immediately
below the text are incorrect given the changed ABNF:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;REQUEST-STATUS:2.0;Success<br>
<br>
</tt></font><font size=2 face="sans-serif">violates the proposed ABNF.
&nbsp;It MUST have a trialing semicolon after &quot;Success&quot;. &nbsp;The
same goes for ALL the other examples.</font>
<br>
<br><font size=2 face="sans-serif">I have no problems with the clear need
for adding new classes of REQUEST-STATUS values (under statcode) but I
do have a BIG problem with making an unnecessary change like this thats
not backwards compatible AND fixes NO problem.</font>
<br>
<br><font size=2 face="sans-serif">I propose that we simply remove Section
8.28 entirely since it does nothing to describe the new changes it mentiones
on page 17:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;REQUEST-STATUS - &nbsp;The [iCAL] &quot;REQUEST-STATUS&quot;
property is extended to<br>
 &nbsp; &nbsp; &nbsp;include new error numbers. (Section 8.28)<br>
</tt></font>
<br><font size=2 face="sans-serif">or at a minimum we restore the RFC 2445
ABNF and just use Section 8.28 to provide a description of the new statclasses
(as promised last Feb) instead. &nbsp;At least RFC 2445 had a desription
of the classes that we need for CAP. &nbsp;Here is a snippet from 2445
that we need in CAP:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;The following are initial classes for
the return status code.<br>
 &nbsp; Individual iCalendar object methods will define specific return<br>
 &nbsp; status codes for these classes. In addition, other classes for
the<br>
 &nbsp; return status code may be defined using the registration process<br>
 &nbsp; defined later in this memo.<br>
<br>
 &nbsp; &nbsp; |==============+===============================================|<br>
 &nbsp; &nbsp; | Short Return | Longer Return Status Description &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<br>
 &nbsp; &nbsp; | Status Code &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<br>
 &nbsp; &nbsp; |==============+===============================================|<br>
 &nbsp; &nbsp; | &nbsp; &nbsp;1.xx &nbsp; &nbsp; &nbsp;| Preliminary success.
This class of status &nbsp; &nbsp; |<br>
 &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| of status
code indicates that the request has |<br>
 &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| request
has been initially processed but that |<br>
 &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| completion
is pending. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp;|<br>
...</tt></font>
<br>
<br><font size=2 face="sans-serif">Bruce</font>
<br><font size=2 face="sans-serif">===========================================================================<br>
Bruce Kahn &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;INet: Bruce_Kahn@notesdev.ibm.com<br>
Messaging &amp; Collaboration &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; Phone: 978.399.6496<br>
IBM Software Group &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; FAX: and nothing but the FAX...<br>
Standard disclaimers apply, even where prohibited by law...</font>
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Subject: CAP-12: Stored queries STILL in?
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In rescanning CAP-12 for changes I see that the editors have not removed 
all vestiges of stored queries from CAP 1.0.  There is still text on 
QUERYID (8.27 QUERYID property) and several examples that use QUERYID. 
These should be removed for CAP 1.0 and be just part of any CAP followon 
that describes a stored query mechanism.

In addition VQUERYs are still part of the object model in Section 3.2 
Calendar Store Object Model.  This too should be removed and proposed in 
the followon work.

Otherwise CAP 1.0 will implicitly, if not explicitly, mandate that a CS 
MUST support stored VQUERYs which is not a reasonable requirement as we've 
covered ad naseum over the past 2 years.  I propose that the QUERYID 
section be removed, the VQUERYs be removed from the model diagram (pp 20 & 
21) and that QUERYID be removed from all examples.  All the text can be 
moved to any followon work that stored query proponents want to propose 
for consideration.

Bruce
===========================================================================
Bruce Kahn                                INet: 
Bruce_Kahn@notesdev.ibm.com
Messaging & Collaboration                 Phone: 978.399.6496
IBM Software Group                         FAX: and nothing but the FAX...
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<br><font size=2 face="sans-serif">In rescanning CAP-12 for changes I see
that the editors have not removed all vestiges of stored queries from CAP
1.0. &nbsp;There is still text on QUERYID (8.27 QUERYID property) and several
examples that use QUERYID. &nbsp;These should be removed for CAP 1.0 and
be just part of any CAP followon that describes a stored query mechanism.</font>
<br>
<br><font size=2 face="sans-serif">In addition VQUERYs are still part of
the object model in Section 3.2 Calendar Store Object Model. &nbsp;This
too should be removed and proposed in the followon work.</font>
<br>
<br><font size=2 face="sans-serif">Otherwise CAP 1.0 will implicitly, if
not explicitly, mandate that a CS MUST support stored VQUERYs which is
not a reasonable requirement as we've covered ad naseum over the past 2
years. &nbsp;I propose that the QUERYID section be removed, the VQUERYs
be removed from the model diagram (pp 20 &amp; 21) and that QUERYID be
removed from all examples. &nbsp;All the text can be moved to any followon
work that stored query proponents want to propose for consideration.<br>
</font>
<br><font size=2 face="sans-serif">Bruce</font>
<br><font size=2 face="sans-serif">===========================================================================<br>
Bruce Kahn &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;INet: Bruce_Kahn@notesdev.ibm.com<br>
Messaging &amp; Collaboration &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; Phone: 978.399.6496<br>
IBM Software Group &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; FAX: and nothing but the FAX...<br>
Standard disclaimers apply, even where prohibited by law...</font>
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Subject: CAP-12: 10.12.1 Searching for VFREEBUSY
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In checking out my last big concerns in CAP I ran across some text in 
Section 10.12.1 Searching for VFREEBUSY that I think may be wrong (or at 
least unclear).  In general, I think the new text is a big improvment and 
Im glad to see it.  However I would like to make it clearer to avoid any 
confusion.  The latest CAP-12 draft says:

10.12.1 Searching for VFREEBUSY

   If a CS sets the "RECUR-EXPAND" property to "TRUE" and contains the
   "VFREEBUSY" component in the "COMPONENTS" value in a reply to the
   "GET-CAPABILITY" command, then it is the CS's responsibility and not
   the CUA's responsibility to provide the correct "VFREEBUSY"
   information for a calendar.

[Snip, snip]

   Such a CS MUST dynamically create the results of a search for
   "VFREEBUSY" components at search time when searching for STATE() =
   'BOOKED' items.

   For CSs that set the "CAPABILITY" "RECUR-EXPAND" property to "FALSE"
   and have the "VFREEBUSY" component in the "COMPONENTS" value in the
   "CAPABILITY" reply, a CUA MAY store the "VFREEBUSY" information on
   the CS. These CSs then MUST return a "VFREEBUSY" component calculated
   from the stored components. If no "VFREEBUSY" information is
   available for the "TARGET" calendar, then a "VFREEBUSY" with no
   blocked out time will be returned with a success code. A CUA sets the
   "VFREEBUSY" time on a those calendars by creating a "VFREEBUSY"
   component without a "METHOD" creating a "BOOKED" entry.

   If a CS does not set the "VFREEBUSY" value in the "COMPONENTS"
   "CAPABILITY" value, the CS does not support the "VFREEBUSY" component
   and all creation and searching for a "VFREEBUSY" component MUST fail.
   Examples of calendars that may be in this category are public event
   calendars that will never require scheduling with other UPNs.

First off, why is VFREEBUSY contingent on the CS's ability or inability to 
RECUR-EXPAND?   Since RECUR-EXPAND is defined as:

   Description: If TRUE then the endpoint can expand an object into
   multiple instances as defined by its recurrence rules when the
   "EXPAND" property is supplied. If FALSE then the endpoint ignores the
   "EXPAND" property.

it merely tells the CUA if the CS supports result expansion or not.  It 
has _nothing_ to do with the CS's ability (or inability) to handle repeat 
instances internally and thus generate the correct VFREEBUSY on demand. 

As I read the text above it appears as if BOTH the "RECUR-EXPAND:TRUE" and 
"RECUR-EXPAND:FALSE" CSs will do the same thing anyway (or close to it). 
That is, for the TRUE case:

         a CS MUST dynamically create the results of a search for
   "VFREEBUSY" components at search time when searching for STATE() =
   'BOOKED' items.

and for the FALSE case:

           These CSs then MUST return a "VFREEBUSY" component calculated
   from the stored components.

These are nearly identical except that in the FALSE case it appears as if 
the data could reflect STATE() != BOOKED items.  This is not good and 
probably a phrasing issue rather than a technical one.  After all, I doubt 
the intent is to have th CS, in this case, return VFREEBUSY that reflects 
pending invitations or reschedules that the CU has not yet taken any 
action on.

Secondly, the text in the 3rd cited paragraph above is self contradictory. 
 First it says "CUA MAY store the "VFREEBUSY" information on the CS" but 
then it goes on to say "These CSs then MUST return a "VFREEBUSY" component 
calculated from the stored components."  I believe the former sentence is 
incorrect or at least poorly phrased and that the latter sentence is 100% 
accurate (with the caveat about "stored components" above).   A CUA should 
NOT be able to modify the VFREEBUSY for a calendar in such a way that it 
does NOT reflect the calendars contents.  Otherwise it is possible for a 
CUA to make the VFREEBUSY data not reflect the calendars contents at all 
and this is not goodness.

I think that by simply removing the text "a CUA MAY store the "VFREEBUSY" 
information on the CS" should resolve this (although it would mean a 
slight editoral change to the first half of that sentence to be useful) 
will resolve this potential disasterous feature.

Finally, I wonder about the text:

                                                     A CUA sets the
   "VFREEBUSY" time on a those calendars by creating a "VFREEBUSY"
   component without a "METHOD" creating a "BOOKED" entry.

This appears to allow a CUA to create VFREEBUSY data (for the CS to 
preserve) that does NOT reflect the actual contents of the actual 
calendar.  Why would we want to make the VFREEBUSY data NOT accurately 
represent the state of the calendars booked contents??  If there is 
nothing on the calendar or it ALL entries that have TRANSP:TRANSPARENT or 
TRANSP:TRANSPARENT-NOCONFLICT properties then one would expect a VFREEBUSY 
with no FREEBUSY properties in it, NOT something the CUA may have forged.

Bruce
===========================================================================
Bruce Kahn                                INet: 
Bruce_Kahn@notesdev.ibm.com
Messaging & Collaboration                 Phone: 978.399.6496
IBM Software Group                         FAX: and nothing but the FAX...
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<br><font size=2 face="sans-serif">In checking out my last big concerns
in CAP I ran across some text in Section 10.12.1 Searching for VFREEBUSY
that I think may be wrong (or at least unclear). &nbsp;In general, I think
the new text is a big improvment and Im glad to see it. &nbsp;However I
would like to make it clearer to avoid any confusion. &nbsp;The latest
CAP-12 draft says:</font>
<br>
<br><font size=2><tt>10.12.1 Searching for VFREEBUSY<br>
<br>
 &nbsp; If a CS sets the &quot;RECUR-EXPAND&quot; property to &quot;TRUE&quot;
and contains the<br>
 &nbsp; &quot;VFREEBUSY&quot; component in the &quot;COMPONENTS&quot; value
in a reply to the<br>
 &nbsp; &quot;GET-CAPABILITY&quot; command, then it is the CS's responsibility
and not<br>
 &nbsp; the CUA's responsibility to provide the correct &quot;VFREEBUSY&quot;<br>
 &nbsp; information for a calendar.<br>
<br>
[Snip, snip]</tt></font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;Such a CS MUST dynamically create the
results of a search for<br>
 &nbsp; &quot;VFREEBUSY&quot; components at search time when searching
for STATE() =<br>
 &nbsp; 'BOOKED' items.<br>
<br>
 &nbsp; For CSs that set the &quot;CAPABILITY&quot; &quot;RECUR-EXPAND&quot;
property to &quot;FALSE&quot;<br>
 &nbsp; and have the &quot;VFREEBUSY&quot; component in the &quot;COMPONENTS&quot;
value in the<br>
 &nbsp; &quot;CAPABILITY&quot; reply, a CUA MAY store the &quot;VFREEBUSY&quot;
information on<br>
 &nbsp; the CS. These CSs then MUST return a &quot;VFREEBUSY&quot; component
calculated<br>
 &nbsp; from the stored components. If no &quot;VFREEBUSY&quot; information
is<br>
 &nbsp; available for the &quot;TARGET&quot; calendar, then a &quot;VFREEBUSY&quot;
with no<br>
 &nbsp; blocked out time will be returned with a success code. A CUA sets
the<br>
 &nbsp; &quot;VFREEBUSY&quot; time on a those calendars by creating a &quot;VFREEBUSY&quot;<br>
 &nbsp; component without a &quot;METHOD&quot; creating a &quot;BOOKED&quot;
entry.<br>
<br>
 &nbsp; If a CS does not set the &quot;VFREEBUSY&quot; value in the &quot;COMPONENTS&quot;<br>
 &nbsp; &quot;CAPABILITY&quot; value, the CS does not support the &quot;VFREEBUSY&quot;
component<br>
 &nbsp; and all creation and searching for a &quot;VFREEBUSY&quot; component
MUST fail.<br>
 &nbsp; Examples of calendars that may be in this category are public event<br>
 &nbsp; calendars that will never require scheduling with other UPNs.<br>
</tt></font>
<br><font size=2 face="sans-serif">First off, why is VFREEBUSY contingent
on the CS's ability or inability to RECUR-EXPAND? &nbsp; Since RECUR-EXPAND
is defined as:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;Description: If TRUE then the endpoint
can expand an object into<br>
 &nbsp; multiple instances as defined by its recurrence rules when the<br>
 &nbsp; &quot;EXPAND&quot; property is supplied. If FALSE then the endpoint
ignores the<br>
 &nbsp; &quot;EXPAND&quot; property.<br>
</tt></font>
<br><font size=2 face="sans-serif">it merely tells the CUA if the CS supports
result expansion or not. &nbsp;It has _nothing_ to do with the CS's ability
(or inability) to handle repeat instances internally and thus generate
the correct VFREEBUSY on demand. &nbsp;</font>
<br>
<br><font size=2 face="sans-serif">As I read the text above it appears
as if BOTH the &quot;RECUR-EXPAND:TRUE&quot; and &quot;RECUR-EXPAND:FALSE&quot;
CSs will do the same thing anyway (or close to it). &nbsp;That is, for
the TRUE case:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;a CS MUST dynamically
create the results of a search for<br>
 &nbsp; &quot;VFREEBUSY&quot; components at search time when searching
for STATE() =<br>
 &nbsp; 'BOOKED' items.</tt></font>
<br>
<br><font size=2 face="sans-serif">and for the FALSE case:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;These CSs
then MUST return a &quot;VFREEBUSY&quot; component calculated<br>
 &nbsp; from the stored components.</tt></font>
<br>
<br><font size=2 face="sans-serif">These are nearly identical except that
in the FALSE case it appears as if the data could reflect STATE() != BOOKED
items. &nbsp;This is not good and probably a phrasing issue rather than
a technical one. &nbsp;After all, I doubt the intent is to have th CS,
in this case, return VFREEBUSY that reflects pending invitations or reschedules
that the CU has not yet taken any action on.</font>
<br>
<br><font size=2 face="sans-serif">Secondly, the text in the 3rd cited
paragraph above is self contradictory. &nbsp;First it says &quot;</font><font size=2><tt>CUA
MAY store the &quot;VFREEBUSY&quot; information on the CS</tt></font><font size=2 face="sans-serif">&quot;
but then it goes on to say &quot;</font><font size=2><tt>These CSs then
MUST return a &quot;VFREEBUSY&quot; component calculated from the stored
components.</tt></font><font size=2 face="sans-serif">&quot; &nbsp;I believe
the former sentence is incorrect or at least poorly phrased and that the
latter sentence is 100% accurate (with the caveat about &quot;stored components&quot;
above). &nbsp; A CUA should NOT be able to modify the VFREEBUSY for a calendar
in such a way that it does NOT reflect the calendars contents. &nbsp;Otherwise
it is possible for a CUA to make the VFREEBUSY data not reflect the calendars
contents at all and this is not goodness.</font>
<br>
<br><font size=2 face="sans-serif">I think that by simply removing the
text &quot;</font><font size=2><tt>a CUA MAY store the &quot;VFREEBUSY&quot;
information on the CS</tt></font><font size=2 face="sans-serif">&quot;
should resolve this (although it would mean a slight editoral change to
the first half of that sentence to be useful) will resolve this potential
disasterous feature.</font>
<br>
<br><font size=2 face="sans-serif">Finally, I wonder about the text:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;A CUA sets the<br>
 &nbsp; &quot;VFREEBUSY&quot; time on a those calendars by creating a &quot;VFREEBUSY&quot;<br>
 &nbsp; component without a &quot;METHOD&quot; creating a &quot;BOOKED&quot;
entry.</tt></font>
<br>
<br><font size=2 face="sans-serif">This appears to allow a CUA to create
VFREEBUSY data (for the CS to preserve) that does NOT reflect the actual
contents of the actual calendar. &nbsp;Why would we want to make the VFREEBUSY
data NOT accurately represent the state of the calendars booked contents??
&nbsp;If there is nothing on the calendar or it ALL entries that have TRANSP:TRANSPARENT
or TRANSP:TRANSPARENT-NOCONFLICT properties then one would expect a VFREEBUSY
with no FREEBUSY properties in it, NOT something the CUA may have forged.</font>
<br>
<br><font size=2 face="sans-serif">Bruce</font>
<br><font size=2 face="sans-serif">===========================================================================<br>
Bruce Kahn &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;INet: Bruce_Kahn@notesdev.ibm.com<br>
Messaging &amp; Collaboration &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; Phone: 978.399.6496<br>
IBM Software Group &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; FAX: and nothing but the FAX...<br>
Standard disclaimers apply, even where prohibited by law...<br>
Warning: Dates in Calendar are closer than they appear.</font>
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Subject: CAP-12: 8.16 EXPAND property
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From: Bruce_Kahn@notesdev.ibm.com
Date: Mon, 19 Jan 2004 13:58:05 -0500
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Ok, we didnt get an answer to my question on EXPAND with time bounded 
searches so I wanted to ask again.  The current description of EXPAND is:

   Description: If a CUA wishes to see all of the instances of a
   recurring component the CUA sets EXPAND=TRUE in the "VQUERY"
   component. If not specified, the default is FALSE. Note that if the
   CS has its "RECUR-EXPAND" CS property value set to false then the
   "EXPAND" property will be ignored and the result will be as if the
   "EXPAND" value was set to false. The results will be bounded by any
   date range or other limits in the query.

In trying to get my head around the use of EXPAND before I noted that its 
unclear and quite ambiguous what the CS should do for a VQUERY that has 
both a time range as part of the WHERE selection subclause and the 
EXPAND:TRUE property.  I can see the scenarios for when a CUA would or 
would not use EXPAND to get the correct results but nowhere in CAP do I 
see where it deals with the ambiguous case of:

          BEGIN:VQUERY
          EXPAND:TRUE
          QUERY:SELECT * FROM VEVENT
          WHERE DTSTART >= '20031208T050000Z'
          AND DTEND <= '20031213T045959Z'
          AND STATE() = 'BOOKED'
          END:VQUERY 

In the interest of getting this resolved faster I thought Id propose that 
CAP be changed to either prevent the above query or to specify a 
consistant behaviour by all CS.  I propose that the following text be 
added to Section 8.16 EXPAND property:

   The "EXPAND" propety MAY NOT be included in a VQUERY that component 
that 
   contains any WHERE clause that specify a bounding or specific date-time
   related search criteria.  If a CS receives such a VQUERY, it MUST 
   ignore the EXPAND property.  For example, if the CUA sends:

          BEGIN:VQUERY
          EXPAND:TRUE
          QUERY:SELECT * FROM VEVENT
          WHERE DTSTART >= '20031208T050000Z'
          AND DTEND <= '20031213T045959Z'
          AND STATE() = 'BOOKED'
          END:VQUERY 

   then the CS would treat the VQUERY as if it were just:

          BEGIN:VQUERY
          QUERY:SELECT * FROM VEVENT
          WHERE DTSTART >= '20031208T050000Z'
          AND DTEND <= '20031213T045959Z'
          AND STATE() = 'BOOKED'
          END:VQUERY 

This also means that when stored queries are reproposed they too will be 
covered from the CUA sending EXPAND:TRUE and the stored VQUERY containing 
the same kinds of date-time search criterias.

Editorial note: the 'false' in lines 4 & 6 at top should 'FALSE'.

Bruce
===========================================================================
Bruce Kahn                                INet: 
Bruce_Kahn@notesdev.ibm.com
Messaging & Collaboration                 Phone: 978.399.6496
IBM Software Group                         FAX: and nothing but the FAX...
Warning: Dates in Calendar are closer than they appear.
--=_alternative 00681A8A85256E20_=
Content-Type: text/html; charset="US-ASCII"


<br><font size=2 face="sans-serif">Ok, we didnt get an answer to my question
on EXPAND with time bounded searches so I wanted to ask again. &nbsp;The
current description of EXPAND is:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;Description: If a CUA wishes to see all
of the instances of a<br>
 &nbsp; recurring component the CUA sets EXPAND=TRUE in the &quot;VQUERY&quot;<br>
 &nbsp; component. If not specified, the default is FALSE. Note that if
the<br>
 &nbsp; CS has its &quot;RECUR-EXPAND&quot; CS property value set to false
then the<br>
 &nbsp; &quot;EXPAND&quot; property will be ignored and the result will
be as if the<br>
 &nbsp; &quot;EXPAND&quot; value was set to false. The results will be
bounded by any<br>
 &nbsp; date range or other limits in the query.<br>
</tt></font>
<br><font size=2 face="sans-serif">In trying to get my head around the
use of EXPAND before I noted that its unclear and quite ambiguous what
the CS should do for a VQUERY that has both a time range as part of the
WHERE selection subclause and the EXPAND:TRUE property. &nbsp;I can see
the scenarios for when a CUA would or would not use EXPAND to get the correct
results but nowhere in CAP do I see where it deals with the ambiguous case
of:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; BEGIN:VQUERY<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;EXPAND:TRUE<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;QUERY:SELECT * FROM VEVENT<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;WHERE DTSTART &gt;= '20031208T050000Z'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;AND DTEND &lt;= '20031213T045959Z'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;AND STATE() = 'BOOKED'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;END:VQUERY</tt></font><font size=3>
</font>
<br>
<br><font size=2 face="sans-serif">In the interest of getting this resolved
faster I thought Id propose that CAP be changed to either prevent the above
query or to specify a consistant behaviour by all CS. &nbsp;I propose that
the following text be added to Section 8.16 EXPAND property:</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;The &quot;EXPAND&quot; propety MAY NOT
be included in a VQUERY that component that </tt></font>
<br><font size=2><tt>&nbsp; &nbsp;contains any WHERE clause that specify
a bounding or specific date-time</tt></font>
<br><font size=2><tt>&nbsp; &nbsp;related search criteria. &nbsp;If a CS
receives such a VQUERY, it MUST </tt></font>
<br><font size=2><tt>&nbsp; &nbsp;ignore the EXPAND property. &nbsp;For
example, if the CUA sends:</tt></font>
<br><font size=2><tt><br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;BEGIN:VQUERY<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;EXPAND:TRUE<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;QUERY:SELECT * FROM VEVENT<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;WHERE DTSTART &gt;= '20031208T050000Z'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;AND DTEND &lt;= '20031213T045959Z'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;AND STATE() = 'BOOKED'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;END:VQUERY</tt></font><font size=3>
</font>
<br>
<br><font size=2><tt>&nbsp; &nbsp;then the CS would treat the VQUERY as
if it were just:</tt></font>
<br>
<br><font size=2><tt>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; BEGIN:VQUERY<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;QUERY:SELECT * FROM VEVENT<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;WHERE DTSTART &gt;= '20031208T050000Z'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;AND DTEND &lt;= '20031213T045959Z'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;AND STATE() = 'BOOKED'<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;END:VQUERY</tt></font><font size=3>
</font>
<br>
<br><font size=2 face="sans-serif">This also means that when stored queries
are reproposed they too will be covered from the CUA sending EXPAND:TRUE
and the stored VQUERY containing the same kinds of date-time search criterias.</font>
<br>
<br><font size=2 face="sans-serif">Editorial note: the 'false' in lines
4 &amp; 6 at top should 'FALSE'.</font>
<br>
<br><font size=2 face="sans-serif">Bruce</font>
<br><font size=2 face="sans-serif">===========================================================================<br>
Bruce Kahn &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;INet: Bruce_Kahn@notesdev.ibm.com<br>
Messaging &amp; Collaboration &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; Phone: 978.399.6496<br>
IBM Software Group &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; FAX: and nothing but the FAX...<br>
Warning: Dates in Calendar are closer than they appear.</font>
--=_alternative 00681A8A85256E20_=--


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As you know Bruce, stored queries have been in CAP since -00 and
there has been no consensus called to remove them. The ability
to support PDA's and low memory devices was in the CAP requirements
specificaiton that was the reason they were created.

It has been requested by you as you put it 'ad naseum over the past 2 
years.'
and we all know you do not want them.

I have also checked the bugzilla database, no such action items exist.


Bruce_Kahn@notesdev.ibm.com wrote:

>
> In rescanning CAP-12 for changes I see that the editors have not 
> removed all vestiges of stored queries from CAP 1.0.  There is still 
> text on QUERYID (8.27 QUERYID property) and several examples that use 
> QUERYID.  These should be removed for CAP 1.0 and be just part of any 
> CAP followon that describes a stored query mechanism.
>
> In addition VQUERYs are still part of the object model in Section 3.2 
> Calendar Store Object Model.  This too should be removed and proposed 
> in the followon work.
>
> Otherwise CAP 1.0 will implicitly, if not explicitly, mandate that a 
> CS MUST support stored VQUERYs which is not a reasonable requirement 
> as we've covered ad naseum over the past 2 years.  I propose that the 
> QUERYID section be removed, the VQUERYs be removed from the model 
> diagram (pp 20 & 21) and that QUERYID be removed from all examples. 
>  All the text can be moved to any followon work that stored query 
> proponents want to propose for consideration.
>
> Bruce
> ===========================================================================
> Bruce Kahn                                INet: 
> Bruce_Kahn@notesdev.ibm.com
> Messaging & Collaboration                 Phone: 978.399.6496
> IBM Software Group                         FAX: and nothing but the FAX...
> Standard disclaimers apply, even where prohibited by law... 


-- 

Doug Royer                     |   http://INET-Consulting.com
-------------------------------|-----------------------------
Doug@Royer.com                 | Office: (208)520-4044
http://Royer.com/People/Doug   | Fax: (866)594-8574
                               | Cell: (208)520-4044

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Bruce_Kahn@notesdev.ibm.com wrote:

>
> I see in the published CAP-12 draft that there is still a section for 
> changes to REQUEST-STATUS.  Besides being incorrectly listed under 
> Section 8  New Properties (REQUEST-STATUS is _not_ a new property) the 
> proposed change has no technical need for CAP or any actual WG 
> discussion.   

Read the archives and you will find that YOU posted the following on the
subject of CAP as part of the the error code debate.
 
  "Imprecise statement on my part and assumptions on the part of others.  My
  most recent suggestion to Lisa was "... the current RFC 2445 format 
for Response-Status
  cannot be used.".

  [and we assumed you meant REQUEST-STATUS as there is no 'RESPONSE-STATUS']

There was no unilateral change or addition to CAP even i f the the
text entered was or was not exactly what you posted.

Now you seem to be saying that it can be used. "as is".
That is fine, but please do not say there was no actual WG discussion as
you participated in that actual WG discussion. (that is just one
of several posts you made on the subject)

So what are you now saying?

Also, it is not a compatibility issue as ALL iTIP messages must be first 
processed
by a CUA and in many cases already tweaked for the CS. And yes I agree
it would be a pain, but as no CS objects exist yet, it can not be a 
compatibly
issue.

So as it has been in CAP for a while and the chairs have not called any
consensus to change it, and as it was discussed, and as it is not in
the action item list (bugzilla); I for one can not unilaterally change
it back to be the current RFC 2445 format for Request-Status.

Does anyone else care which format we use?

AND:  I have entered a bugzilla issue to move it FROM the 'new' 
properties section.

-- 

Doug Royer                     |   http://INET-Consulting.com
-------------------------------|-----------------------------
Doug@Royer.com                 | Office: (208)520-4044
http://Royer.com/People/Doug   | Fax: (866)594-8574
                               | Cell: (208)520-4044

              We Do Standards - You Need Standards



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I added a bug to track this. (BUG #573)

Shriram V wrote:

>Hi all,
>
>
>Is this an error in the RRULE examples in RFC 2445, in section 4.8.5.4?
>
>I have found that two of the rules in the RFC include the last occurrence,
>even though it occurs later than the UNTIL date-time.
>
>I tried searching though the mailing list archives, but could not find any
>previous postings on these errors.
>
>
>
>=======
>[Page 119]
>Everyday in January, for 3 years:
>
>     DTSTART;TZID=US-Eastern:19980101T090000
>     RRULE:FREQ=YEARLY;UNTIL=20000131T090000Z;
>      BYMONTH=1;BYDAY=SU,MO,TU,WE,TH,FR,SA
>     or
>     RRULE:FREQ=DAILY;UNTIL=20000131T090000Z;BYMONTH=1
>
>     ==> (1998 9:00 AM EDT)January 1-31
>         (1999 9:00 AM EDT)January 1-31
>         (2000 9:00 AM EDT)January 1-31
>=======
>
>1. It should be EST instead of EDT? (A typo?)
>2. Last occurrence (2000 09:00 Jan 31) should not be included.
>
>The last occurrence is on (2000 09:00 EST Jan 31)
>which is equivalent to    (2000 14:00 UTC Jan 31).
>
>This is definitely later than UNTIL (2000 09:00 UTC Jan 31),
>so should be excluded.
>
>
>=======
>[Page 125]
>Every 3 hours from 9:00 AM to 5:00 PM on a specific day:
>
>     DTSTART;TZID=US-Eastern:19970902T090000
>     RRULE:FREQ=HOURLY;INTERVAL=3;UNTIL=19970902T170000Z
>
>     ==> (September 2, 1997 EDT)09:00,12:00,15:00
>=======
>
>
>1. Again last occurrence (1997 15:00 PM Sep 2) should not be included.
>
>The last occurrence is on (1997 15:00 EDT Sep 2)
>which is equivalent to    (1997 19:00 UTC Sep 2).
>
>This is definitely later than UNTIL (1997 17:00 UTC Sep 2),
>so should be excluded.
>
>
>
>
>
>Somebody please comment.
>Let me know if my interpretation is correct or not?
>
>
>
>Thanks,
>Shriram.
>  
>

-- 

Doug Royer                     |   http://INET-Consulting.com
-------------------------------|-----------------------------
Doug@Royer.com                 | Office: (208)520-4044
http://Royer.com/People/Doug   | Fax: (866)594-8574
                               | Cell: (208)520-4044

              We Do Standards - You Need Standards



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Bruce_Kahn@notesdev.ibm.com wrote:

>
> First off, why is VFREEBUSY contingent on the CS's ability or 
> inability to RECUR-EXPAND?   Since RECUR-EXPAND is defined as:

If the CS allows the CUA to store non-expanted objects.
AND IF  the CS can NOT expand objects.

Then there is NO WAY the CS can auto-expand them and create a
dynamic VFREEBUSY object as many on this WG list want.

This is an iTIP problem as well as there is NO requirement for iTIP 
endpoints
to all support recurring rules.

And we covered this already last month and in the discussions that
led up to the text being inserted.

-- 

Doug Royer                     |   http://INET-Consulting.com
-------------------------------|-----------------------------
Doug@Royer.com                 | Office: (208)520-4044
http://Royer.com/People/Doug   | Fax: (866)594-8574
                               | Cell: (208)520-4044

              We Do Standards - You Need Standards



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Bruce_Kahn@notesdev.ibm.com wrote:

> As I read the text above it appears as if BOTH the "RECUR-EXPAND:TRUE" 
> and "RECUR-EXPAND:FALSE" CSs will do the same thing anyway (or close 
> to it).  That is, for the TRUE case:
>
>          a CS MUST dynamically create the results of a search for
>   "VFREEBUSY" components at search time when searching for STATE() =
>   'BOOKED' items.
>
> and for the FALSE case:
>
>            These CSs then MUST return a "VFREEBUSY" component calculated
>   from the stored components.
>
> These are nearly identical except that in the FALSE case it appears as 
> if the data could reflect STATE() != BOOKED items.  This is not good 
> and probably a phrasing issue rather than a technical one.  After all, 
> I doubt the intent is to have the CS, in this case, return VFREEBUSY 
> that reflects pending invitations or reschedules that the CU has not 
> yet taken any action on. 

Now it is up to the CUA and it can ask and get what it wants in both cases.
What is the problem?

>
> Secondly, the text in the 3rd cited paragraph above is self 
> contradictory.  First it says "CUA MAY store the "VFREEBUSY" 
> information on the CS" but then it goes on to say "These CSs then MUST 
> return a "VFREEBUSY" component calculated from the stored components." 
>  I believe the former sentence is incorrect or at least poorly phrased 
> and that the latter sentence is 100% accurate (with the caveat about 
> "stored components" above).   A CUA should NOT be able to modify the 
> VFREEBUSY for a calendar in such a way that it does NOT reflect the 
> calendars contents.  Otherwise it is possible for a CUA to make the 
> VFREEBUSY data not reflect the calendars contents at all and this is 
> not goodness. 

As we discussed already, the current iTIP VFREEBUSY model is calculated
by the CUA taking into account optionally more than one calendars.

The CAP VFREEBUSY is calculated by the CS without knowledge of other
calendars.

>
> I think that by simply removing the text "a CUA MAY store the 
> "VFREEBUSY" information on the CS" should resolve this (although it 
> would mean a slight editorial change to the first half of that 
> sentence to be useful) will resolve this potential disastrous feature. 

If we remove that, then we do not keep iTIP compatibility. As currently 
the CUA
send and calculate the VFREEBUSY components that may or might not
be the same as the busy time on the one specific CAP calendar.

>
> Finally, I wonder about the text:
>
>                                                      A CUA sets the
>   "VFREEBUSY" time on a those calendars by creating a "VFREEBUSY"
>   component without a "METHOD" creating a "BOOKED" entry.
>
> This appears to allow a CUA to create VFREEBUSY data (for the CS to 
> preserve) that does NOT reflect the actual contents of the actual 
> calendar.  Why would we want to make the VFREEBUSY data NOT accurately 
> represent the state of the calendars booked contents?? 

That is the way iTIP works now. The CUA and not the CS calculates the
VFREEBUSY time. Now both work.

>  If there is nothing on the calendar or it ALL entries that have 
> TRANSP:TRANSPARENT or TRANSP:TRANSPARENT-NOCONFLICT properties then 
> one would expect a VFREEBUSY with no FREEBUSY properties in it, NOT 
> something the CUA may have forged.

No more or less than now with iTIP and pre-CAP.
And again ask for the calculated VFREEBUSY if you want the CS calculated 
VFREEBUSY.
And ask for any iTIP VFREEBUSY when you want the CUA calculated VFREEBUSY.

We keep 100% compatibility with pre-CAP iTIP.
And add the ability to get CS calculated VFREEBUSY results.

-- 

Doug Royer                     |   http://INET-Consulting.com
-------------------------------|-----------------------------
Doug@Royer.com                 | Office: (208)520-4044
http://Royer.com/People/Doug   | Fax: (866)594-8574
                               | Cell: (208)520-4044

              We Do Standards - You Need Standards



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