MATLAB OOP question.

OK possibly a silly question, be please read and help me out regardless. :)

Does an object have a sense of self?

What I mean is, let's say I want to have some method which you call that increases a protected property by 1.

So you call the method: MyObj.AddOneToThatThingyMaBob().

Inside the method, what do I use as a subsitute for "this" like you would use in C#? AKA in C# it might be something similar to: this.MyValue = this.MyValue + 1;

How do you do that in MATLAB?

Answer 1

[Chirag Gupta]

In MATLAB, a method would typically have a signature:

 classdef test1234 < handle
    properties (Access = public)
     prop
    end
    methods 
    function obj = test1234()
        obj.prop =0;
    end

    function AddOneToThatThing(obj)
         obj.prop = obj.prop+1;
    end
    end
end

Then

      a = test1234;
      a.AddOneToThatThing();
      a

Gives you what you need. The key here is Handle classes

[Chirag Gupta]

You could do this with Value classes as well:

classdef test1234
    properties (Access = public)
        prop
    end
    methods
        function obj = test1234()
            obj.prop = 0;
        end
        function obj = AddOneToThatThing(obj)
            obj.prop = obj.prop+1;
        end
    end
end

But then you will have to always return the modified obj back.

a = test1234;
a = a.AddOneToThatThing() % Reassign it

[Adam]

OK this makes sense..."obj" is "this" when dealing with Handle classes!

[Chirag Gupta]

obj is just a variable name used typically in MATLAB (or by me)! If you prefer you could name it as 'this' instead of 'obj'