defining properties in a class

3 次查看（过去 30 天）
Deepa Maheshvare
Deepa Maheshvare 2021-8-3
评论： Deepa Maheshvare 2021-8-3
I have the following class
classdef classname
properties (Constant)
Number=1
end
end
I can change the value of `Number`
classname.Number=2
How can I defined properties so that one cannot change the value of the variables defined in `properties`?

请先登录，再回答此问题。

回答（1 个）

Rik
Rik 2021-8-3
编辑：Rik 2021-8-3
This doc page seems to suggest this is not natively possible. However, you could implement it as method:
%(untested code)
classdef classname
properties (Private)
%use a struct to store the defaults to keep all your static
%properties in one place
static.Number=1;
end
methods
function val=Number(obj)
val=obj.static.Number;
end
end
end
  13 个评论
显示 11更早的评论
Rik
Rik 2021-8-3
Ran in:
Why would it? This is what it returns with your classdef.
I don't understand why you instist on calling things static when they aren't.
main(10)
ans = struct with fields:
PropName: 10 propname2: 10
function main(arg)
classname.fun1(arg,arg)
end
Deepa Maheshvare
Deepa Maheshvare 2021-8-3
Basically I want it to be a storage.
I think I could do the following. Defining persistent variable inside class helps in accessing the value globally without having to pass the input argument everytime.
classdef StoreData
methods (Static)
function out = setgetVar(data)
persistent Var;
if nargin
Var = data;
end
out = Var;
end
end
end
StoreData.setgetVar(10);
a = StoreData.setgetVar
ref:
https://in.mathworks.com/help/matlab/matlab_oop/static-data.html

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Class File Organization 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by