You should think about whether the tire needs to be exposed as a public property on the car, or whether it can be private. In any case, one approach for your problem is to use SET methods for properties. An example is below, where the car has a public color, which when set updates the car's bodyColor and its tire's paintColor.
classdef Car < handle
properties(Dependent)
color;
end
properties(Access = private)
tire;
bodyColor;
end
methods
function set.color(this, v)
this.bodyColor = v;
this.tire.paintColor = v;
end
function v = get.color(this)
v = this.bodyColor;
end
function obj = Car
obj.tire = Tire;
obj.color = 'black';
end
end
end
classdef Tire < handle
properties
paintColor = 'black';
end
end
Using that approach, the tire doesn't even need to know what car it is attached to. Now if it is the case that you need to have the tire exist separately from the car, another approach would be to have the tire's color dependent upon the car it is attached to:
classdef Car < handle
properties(Dependent)
color;
end
properties(Access = private)
tire;
bodyColor;
end
methods
function set.color(this, v)
this.bodyColor = v;
end
function v = get.color(this)
v = this.bodyColor;
end
function obj = Car(aTire)
obj.tire = aTire;
obj.tire.car = obj;
obj.color = 'black';
end
end
end
classdef Tire < handle
properties
car;
end
properties(Dependent, SetAccess = private)
paintColor = 'black';
end
methods
function v = get.paintColor(this)
v = this.car.color;
end
end
end
