MATLAB OOP - redefine static method
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Hi folks,
Following is an OOP question from a guy who knows nothing about OOP, so excuse me in advance :)
There is a built-in MATLAB class, located in matlabroot/toolbox/coder/connectivity/+coder/+rtiostreamtest/Parameters.m (if your version of MATLAB is earlier than R2012b, you might not find it). This class defines a method called getParameterInstance as Static. I just need to add another case to switch statement in this method. I don't want to modify the shipping MATLAB file, and i heard you can "subclass" those shipping classes.
Following documentation, i created a subclass like this:
classdef Parameters < coder.rtiostreamtest.Parameters
methods (Static)
function instance = getParameterInstance(tag, input)
..my very own version of switch-case..
end
end
end
This subclass is located in +myclass/Parameters.m file in MATLAB path. I then issued "rehash toolbox", just in case.
However, i don't see any effect. I'm not overriding the static method of coder.rtiostreamtest.Parameters class.
What am i doing wrong?
Many thanks!
3 Comments
Accepted Answer
per isakson
on 8 Jul 2013
Edited: per isakson
on 8 Jul 2013
Do you use a call like this?
myclass.Parameters.getParameterInstance( 'two', 'args' )
4 Comments
per isakson
on 8 Jul 2013
Edited: per isakson
on 8 Jul 2013
I don't have access to the Embedded Coder toolbox.
Had the call in the "rtiostreamtest script" been
Parameters.getParameterInstance( 'two', 'args' )
it would have been possible to put a class named Parameters in the top of the Matlab search path. (Not in a package.)
Yes, you will probably need to modify the Matlab script, which should be avoided:-(.
AFAIK: the term built-in class does not include m-files, i.e. not code written in the Matlab language. However, I cannot find a proper definition in the documentation.
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