Specifies whether this class is final (cannot have subclasses).
To specify that a class is final, use the following syntax:
Class MyApp.Exam As %Persistent [ Final ]
Otherwise, omit this keyword or place the word Not
immediately before the keyword.
If a class is final
, it cannot have subclasses.
Also, if a class is final, the class compiler may take advantage of certain code generation optimizations (related to the fact that instances of a final class cannot be used polymorphically).
If you omit this keyword, the class definition is not final.