Re: RFC2445/RFC2446: SEQUENCE property

Shriram V wrote:

>Hi all,
>
>I have a doubt related to SEQUENCE property.
>
>Can recurrence instances of a vevent component have a 
>larger(or different) SEQUENCE when the main vevent 
>component (that describes the recurrence set) has a 
>smaller SEQUENCE?
>
If you have:

    VEVENT:  UID:1, SEQUENCE:6 (NO RECURRENCE-ID)

Then you get a:

    VEVENT: UID:1, SEQUENCE:7 (With a RECURENCE-ID)

    then you are being told that the new SEQUENCE number is 7
    and that exactly one instance has been updated with the details
    in the new object. Now the main vevent is also at 7.

If you have:

    VEVENT:  UID:1, SEQUENCE:6 (NO RECURRENCE-ID)

Then you get a:

    VEVENT: UID:1, SEQUENCE:5 (With a RECURENCE-ID)

    It is an old object, toss it.
  

>or
>Is SEQUENCE property for a vevent component 
>different than the SEQUENCE property of an individual 
>vevent recurrence instance? If they are different, how are 
>they related?
>
>For example an instance update might change only the 
>SEQUENCE of the instance, whereas the main vevent 
>does not change.
>
See section 4.4.2 of iTIP.  You update the main vevent, increment its 
sequence.
Then if there is just one instance update, you can choose to send out an 
update
that specifies just that change.

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