recurrence property
An RRULE (https://tools.ietf.org/html/rfc5545#section-3.8.5.3) for how this window reccurs.
They go on for the span of time between the start and end time. For
example, to have something repeat every weekday, you'd use:
FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR To repeat some window daily (equivalent
to the DailyMaintenanceWindow): FREQ=DAILY For the first weekend of
every month: FREQ=MONTHLY;BYSETPOS=1;BYDAY=SA,SU This specifies how
frequently the window starts. Eg, if you wanted to have a 9-5 UTC-4 window
every weekday, you'd use something like: start time = 2019-01-01T09:00:00-0400 end time = 2019-01-01T17:00:00-0400 recurrence = FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR Windows can span multiple days. Eg,
to make the window encompass every weekend from midnight Saturday till the
last minute of Sunday UTC: start time = 2019-01-05T00:00:00Z end time = 2019-01-07T23:59:00Z recurrence = FREQ=WEEKLY;BYDAY=SA Note the
start and end time's specific dates are largely arbitrary except to
specify duration of the window and when it first starts. The FREQ values
of HOURLY, MINUTELY, and SECONDLY are not supported.
Implementation
core.String? recurrence;