Class Hierachie, Inheritance and Access class members

Hallo,

I've difficuty accessing subclass methods. Any try results in MATLAB error: Method 'AddListener' is not defined for class 'baseStation' or is removed from MATLAB's search path.

my classes design looks like this :

classdef super1 < handle
....
methods
AddListener(obj,objmob);
end
end

classdef super2 < handle
...
methods
AddListener(obj,ojbbts,ojbmob)
end
end

classdef subclass < super1&super2

.................
methods
AddListener(obj,ojbmob,ojbbts);
end
end

subclass actualy call super classes AddListener methods :

AddListener@super1(obj,ojbmob);
AddListener@super2(obj,objmob,objbts);

but also perform other processing befor and after these call. The documentation state to avoid access conflict the following condition among other should hold: The subclass redefines the method to disambiguate the multiple definitions across all superclasses. This means that the superclass methods must not have their Sealed attribute set to true.

All the methods are defined in separated file from that class definition are. What I am doing wrong?

Thanks

Answer 1

[Titus Edelhofer]

Hi,

might be some typo? Should (and does) work like you write:

super1.m:

classdef super1 < handle
  methods
      function AddListener(obj,objmob)
          disp('super1.AddListener')
      end
  end
end

super2.m:

classdef super2 < handle
  methods
      function AddListener(obj,objbbts, objmob)
          disp('super2.AddListener')
      end
  end
end

subclass.m:

classdef subclass < super1&super2
  methods
      function AddListener(obj,objmob,objbts)
          AddListener@super1(obj,objmob);
          AddListener@super2(obj,objmob,objbts);
      end
  end
end

And now the test:

>> x = subclass
x = 
subclass with no properties.
>> x.AddListener(2,3)
super1.AddListener
super2.AddListener

Titus

[Sean de Wolski]

addlistener lowercase was my guess.

[Titus Edelhofer]

Hi Sean,

yes, could me a mix up of the addlistener method of the handle class and the (totally independent) AddListener method of the example ...

Titus

[Bolivar]

Hi Titus,

I've checked it over and over wehter there were some tipos mistakes but nothing. As you saind it may lay on confusion between built-in addlistener and my AddListeners' methods. In fact they encapsulate built-in addlistener.