How do I view the properties of an abstract class?

6 次查看（过去 30 天）
Aaron Kaw
Aaron Kaw 2022-5-12
回答： Steven Lord 2022-5-12
For a class such as
classdef (Abstract) AbstractClassDemo
properties (Constant)
one = 1
two = 'two'
end
end
I should be using something like
meta.abstractDetails('AbstractClassDemo')
which returns the error
No abstract methods or properties for class AbstractClassDemo or no class AbstractClassDemo.
To confirm to you that AbstractClassDemo is visible and accessible, I run
AbstractClassDemo
which returns
Abstract classes cannot be instantiated. Class 'AbstractClassDemo' is declared as Abstract.
What alternative options do I have? I can't find anything else I can do. Am I doing something wrong above? Should be simple right?

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采纳的回答

Steven Lord
Steven Lord 2022-5-12
Call the properties function with the name of the Abstract class as input.
>> properties AbstractClassDemo
Properties for class AbstractClassDemo:
one
two
Alternately if you want additional information you could use either the ? operator or the meta.class.fromName function to create the meta.class object for the class. That object has an array of meta.property objects in its PropertyList property.
>> q = meta.class.fromName('AbstractClassDemo');
>> q = ?AbstractClassDemo;
>> propOne = q.PropertyList(1)
propOne =
property with properties:
Name: 'one'
Description: ''
DetailedDescription: ''
*snip the rest of the properties to keep this post short*

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