METHOD:REFRESH Validator.
Component/Property Presence
------------------- ----------------------------------------------
METHOD 1 MUST be "REFRESH"
VEVENT 1
ATTENDEE 1 MUST be the address of requestor
DTSTAMP 1
ORGANIZER 1
UID 1 MUST be the UID associated with original
REQUEST
COMMENT 0 or 1
RECURRENCE-ID 0 or 1 MUST only if referring to an instance of a
recurring calendar component. Otherwise
it must NOT be present.
X-PROPERTY 0+
ATTACH 0
CATEGORIES 0
CLASS 0
CONTACT 0
CREATED 0
DESCRIPTION 0
DTEND 0
DTSTART 0
DURATION 0
EXDATE 0
EXRULE 0
GEO 0
LAST-MODIFIED 0
LOCATION 0
PRIORITY 0
RDATE 0
RELATED-TO 0
REQUEST-STATUS 0
RESOURCES 0
RRULE 0
SEQUENCE 0
STATUS 0
SUMMARY 0
TRANSP 0
URL 0
X-COMPONENT 0+
VTODO 0
VJOURNAL 0
VFREEBUSY 0
VTIMEZONE 0
VALARM 0