Notification Services—Creating an Event Class

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Creating an Event Class

An event class named StockWatchEvents is created in the CreateEventClass( ) method of Example 18-1. The code follows:

private static void CreateEventClass( )
{
  EventClass ec = new EventClass
    (a, "StockWatchEvents");
  EventField ef;
  ef = new EventField(ec, "Symbol");
  ef.Type = "nvarchar(6)";
  ec.EventFields.Add(ef);
  ef = new EventField(ec, "Price");
  ef.Type = "float";
  ec.EventFields.Add(ef);
  a.EventClasses.Add(ec);
  Console.WriteLine
    ("Added event class: " + ec.Name);
}

An event class represents a type of event used by a Notification Services application. The event class has two fields—Symbol of type nvarchar(6) and Price of type float.

The NMO classes for managing event classes, fields, and chronicles are described in Table 18-4.

Table 18-4. NMO classes for managing events