MATLAB Object-Oriented Programming

Subclassing Multiple Classes

In this section...

“Specify Multiple Superclasses” on page 12-22

“Class Member Compatibility” on page 12-22

“Multiple Inheritance” on page 12-23

Specify Multiple Superclasses

When inheriting from multiple classes, use the & character to indicate the combination of

the superclasses:

classdef ClassName < SuperClass1 & SuperClass2

For more information on class syntax, see “Subclass Syntax” on page 12-7.

Class Member Compatibility

When you create a subclass derived from multiple superclasses, the subclass inherits the

properties, methods, and events defined by all specified superclasses. If more than one

superclass defines a property, method, or event having the same name, there must be an

unambiguous resolution to the multiple definitions. You cannot derive a subclass from any

two or more classes that define incompatible class members.

Here are various situations where you can resolve name and definition conflicts.

Property Conflicts

If two or more superclasses define a property with the same name, then at least one of

the following must be true:

• All, or all but one of the properties must have their SetAccess and GetAccess
  attributes set to private


• The properties have the same definition in all superclasses (for example, when all
  superclasses inherited the property from a common base class)

12 How to Build on Other Classes