Permissions protecting access-controlled operations that are evaluated for a specific topic path.
public enum TopicPermission : byte
When the subscription or fetch request completes, the resulting topics are further filtered based on the READ_TOPIC permission.
A session that has READ_TOPIC but not SELECT_TOPIC for a particular topic path cannot subscribe directly to topics belonging to the path. However, the session can be independently subscribed by a control session that has MODIFY_SESSION permission in addition to the appropriate SELECT_TOPIC permission.
If a session does not have READ_TOPIC permission for a topic, the topic will be excluded from the results of subscription or fetch operations for the session, and the topic's details cannot be retrieved by the session.
The READ_TOPIC permission is required to evaluate any type of IQuery<TValue> for a time series topic. The QUERY_OBSOLETE_TIME_SERIES_EVENTS permission is additionally required for queries that potentially return a non-current view of all or part of a time series. Such queries include value range queries that specify an edit range, and all types of edit range query.
The UPDATE_TOPIC permission is required to update a time series topic. The EDIT_TIME_SERIES_EVENTS permission is additionally required to submit edits via EditAsync<TValue>(String, Int64, TValue) to a time series topic.
The UPDATE_TOPIC permission is required to update a time series topic. The EDIT_OWN_TIME_SERIES_EVENTS permission is additionally required to submit edits via EditAsync<TValue>(String, Int64, TValue) to a time series topic where the event author is the same as the principal of the calling session.
Acquire a session lock.
Submit edits to time series topic events which have an author which is the same as the principal of the calling session.
Submit edits to time series topic events.
Add a topic or remove a topic.
Evaluate queries that return a non-current view of a time series topic.
Required to receive information from a topic.
Use a topic selector that selects the topic path.
Send a message to a handler registered with the server.
Send a message to a client session.
A permission that is unsupported by the session.
Update a topic.