Class: Class
Description
This method indicates whether the class named in the first argument is a descendant of the class named in the second argument.
Syntax
Class.isDescendant(String className1,String className2)
Parameters
|
className1 |
The name of the descendant class |
|
className2 |
The name of the ancestor class |
Returns
A Boolean:
1 if the class named by className1 is a descendant
of the class named by className2.
0 if the class named by className1 is not a descendant of the class named
by className2.
When Became Available
v7.0
Example
// wrong order presumably
type Boolean NO = Class.isDescendant("Record","RecordDEP")
type Boolean YES = Class.isDescendant("String","Primitive")
// Class, Db, and Runtime descent directly from Object
set NO = Class.isDescendant("Runtime","Reference")
set YES = Class.isDescendant("Class","Object")
//If second name is "Object", result is always 1 EXCEPT:
// (no class is a descendant of itself)
set NO = Class.isDescendant("Object","Object")