Final
Specifies whether this class is final (cannot have subclasses).
Usage
To specify that a class is final, use the following syntax:
Class MyApp.Exam As %Persistent [ Final ] { //class members }
Otherwise, omit this keyword or place the word Not immediately before the keyword.
Details
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).
Default
If you omit this keyword, the class definition is not final.
See Also
“Class Definitions” in this book
“Defining and Compiling Classes” in Using Caché Objects
“Introduction to Compiler Keywords” in Using Caché Objects
