MATLAB Object-Oriented Programming

nonhandle compatible class as handle-compatible by using the HandleCompatible class

attribute.

classdef (HandleCompatible) MyClass

...

end

Handle Compatibility Rules

Handle-compatible classes (that is, classes whose HandleCompatible attribute is set to

true) follow these rules:

• All superclasses of a handle-compatible class must also be handle compatible


• If a class explicitly sets its HandleCompatibility attribute to false, then none of
  the class superclasses can be handle classes.


• If a class does not explicitly set its HandleCompatible attribute and, if any
  superclass is a handle, then all superclasses must be handle compatible.


• The HandleCompatible attribute is not inherited.

A class that does not explicitly set its HandleCompatible attribute to true is:

• A handle class if any of its superclasses are handle classes


• A value class if none of the superclasses are handle classes

Identify Handle Objects

To determine if an object is a handle object, use the isa function:

isa(obj,'handle')

See Also

Related Examples

• “How to Define Handle-Compatible Classes” on page 12-41

12 How to Build on Other Classes