4.9.2. CompFilterType
This type defines a search query for the calendar query operation. It specifies the component types to return, absence tests or basic matching operations on properties and time ranges.
The top level comp-filter element (which must match a vCalendar component may contain zero or more comp-filter elements to match events, tasks or other contained components. These in turn may contain further nested comp-filter elements to match further levels of nested components.
Each may also contain prop-filter elements to test for the absence of properties or to match values. Only logical conjunctions are supported, that is, all elements of a comp-filter must match for the expression to match.
CompFilterType elementsField | Type | # | ? | Description |
|---|---|---|---|---|
|
| 0..1 | C | One of
|
|
| 0..1 | C | Matches vCalendar at the top level. Must be provided |
|
| 0..1 | C | May be vEvent or vTODO for example. |
| string | 0..1 | N | “anyof” is a logical “allof” is a logical |
| empty | 0..1 | N | Only this element or one or more of time-range, prop-filter or comp-filter may be present |
|
| 0..1 | N | |
|
| 1 | Y | Match against contained components |
|
| 0..n | N | Match against component properties |