Pass existing object to different class objects

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Julian
Julian 2023-9-13
评论： Julian 2023-9-13
Hi I have a object oriented programm so simulate different appliances.
I have a class object where the general settings of my programm are stored, so I don't have to save a lot of datas to every objec
If I store the object of my settings in the other object, do I generate everytime a "new" settingsobject and use a lot of space or will it be just a "pointer" to my existing object?
classdef appliance
properties
gens
% ...
end
methods
function obj = timeClass(gens)
%UNTITLED Construct an instance of this class
obj.gens = gens
end
% ...
end
end
gens = generalClassObject
appli = appliance(gens)

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采纳的回答

Matt J
Matt J 2023-9-13
编辑：Matt J 2023-9-13
It will be a "pointer", until you make a change to one of the shared copies. Then, the specific property variables that you change will be unshared. See also,
https://www.mathworks.com/help/matlab/matlab_prog/avoid-unnecessary-copies-of-data.html#mw_88098f3e-feaa-4053-a47a-c5ddb19ab803
  1 个评论
Julian
Julian 2023-9-13
But I use "handle" als the superclass of my settingsobject "gens" it will remain as a reference to the existing object, not a new copy of the object.
Have I understood it correct?

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