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Save changes to class properties with dot notation

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Luca Amerio
Luca Amerio on 15 Sep 2016
Commented: Luca Amerio on 15 Sep 2016
Let's say I have a simple class like this one:
classdef MyData
properties
Data = 0;
end
methods
function obj=addData(obj,val)
obj.Data = obj.Data + val;
disp(obj.Data)
end
end
end
If I call twice
a=addData(a,1);
the output is
>> a=addData(a,1);
1
>> a=addData(a,1);
2
however if I use the dot notation the behavior changes like this
>> a.addData(1)
1
>> a.addData(1)
1
The "Data" properties is not updated after the call. Is it possible to use the dot notation and store the value in the object?
Thank you very much

Accepted Answer

per isakson
per isakson on 15 Sep 2016
Edited: per isakson on 15 Sep 2016
MyData is a value class. Try
a = a.addData(1)
and
classdef MyData < handle
  1 Comment
Luca Amerio
Luca Amerio on 15 Sep 2016
The "< handle" solution is the one I was looking for. Thank you very much

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