Re: OOP load update

[Judd Storrs]

I'm pretty sure the constructor is called if Matlab doesn't have a class definition. Suppose:

@FooBar/FooBar.m:
function obj = FooBar()
     disp('Hello!');
     obj.data = "">
     obj = class(obj, 'FooBar');

Then at least in Matlab R14 (7.0.1) (I've edited whitespace):

Matlab Session 1:
>> obj1 = FooBar()
Hello!
obj1 = FooBar object: 1-by-1
>> save('test.mat','obj1')
>> obj2 = FooBar()         
Hello!
obj2 = FooBar object: 1-by-1
>> save('test2.mat','obj2')
>> exit

Matlab Session 2:
>> load test.mat
Hello!
>> load test2.mat
>> 

As you see in the second session, matlab does execute the constructor the first time it encounters the FooBar class, but once it knews the class structure, it didn't need to call the constructor again.

--judd