How to make property definition using own class in Matlab? - matlab

Question

In Matlab I have the package "+mypackage". All the following definitions are under this folder/package.
MyClass.m
classdef MyClass
properties
prop1 MyProperty
end
methods (Static)
function obj = with_five()
obj = mypackage.MyClass(5);
end
end
methods
function obj = MyClass(num)
obj.prop1 = mypackage.MyProperty(num);
end
end
end
MyProperty.m
classdef MyProperty
properties
num double
end
methods
function obj = MyProperty(val)
obj.num = val;
end
end
end
So in MyClass.m I define the prop1 property to be an object of class MyProperty.
Now I would like to create objects with this script.
import mypackage.MyClass
class_test1 = MyClass(5);
class_test2 = MyClass.with_five();
When I run it I get following errors:
Error using Testpackage (line 3)
Error defining property 'prop1' of class 'mypackage.MyClass':
Class named 'MyProperty' is undefined or does not support property validation.
When I remove the property definition from MyClass.m it works.
Is there a way to define properties to be an object of an own class in Matlab?

Answer 1

Thank you Wolfie your Help!
I changed the definition for prop1 to mypackage.MyProperty.
My Class definition looks now like this:
classdef MyClass
properties
prop1 mypackage.MyProperty
end
methods (Static)
function obj = with_five()
obj = mypackage.MyClass(5);
end
end
methods
function obj = MyClass(num)
obj.prop1 = mypackage.MyProperty(num);
end
end
end
Its necessary to point to MyProperty inside my package mypackage.
Otherwise Matlab is not able to find it.
I found it in the Matlab help:
https://de.mathworks.com/help/matlab/matlab_oop/scoping-classes-with-packages.html?s_tid=srchtitle#brfynt_-3