Can classes be made unsaveable

Is there a way to define a class such that the MATLAB save() function throws an error when it tries to save an instance of that class? E.g.

>> h = myclass();
>> save h
Error: Instances of myclass cannot be saved.

Answer 1

[Oliver Woodford]

No. When a class object is saved, the saveobj method for that class gets called, if it exists. If this method throws an error, it is caught, and thrown as a warning instead. Therefore the best you can do is generate a warning. If you don't want the object to be saved, then you can have the saveobj method return an empty array, which is saved instead:

classdef myclass
    ...
     methods
      function a = saveobj(obj)
        a = [];
        Warning 'myclass objects are unsaveable.'
      end
     end
 end