Represents an event that is raised when there is a change in the status of a Subject.
Declaration Syntax
C# | Visual Basic | Visual C++ |
public interface ISubjectStatusEvent
Public Interface ISubjectStatusEvent
public interface class ISubjectStatusEvent
Members
Remarks
Usage in DataSource source applications
An ISubjectStatusEvent can be raised by an IDataProvider to indicate to peers the status of their subscription to a subject. For example, if the back end system that feeds data to an IDataProvider goes down, the IDataProvider should raise a ISubjectStatusEvent with a Status of Stale to indicate to the peer that the data it has is not completely up-to-date. When an update is subsequently received from the backend data feed, then the IDataProvider should raise a ISubjectStatusEvent with a Status of Ok to indicate to the peer that the data it has is now up to date.