MATLAB Object-Oriented Programming

Get Information About Properties

In this section...

“The meta.property Object” on page 16-14

“How to Find Properties with Specific Attributes” on page 16-17

The meta.property Object

Use the meta.property class to determine the values of property attributes. The

writable properties of a meta.property object correspond to the attributes of the

associated property. The values of the writable meta.property properties correspond to

the attribute values specified in the class definition.

Get the meta.property object for a property from the meta.class object. To get the

meta.class object for a class:

• Use the metaclass function on an object of the class.


• Use the? operator with the class name.

For example, the BasicHandle class defines three properties:

classdef BasicHandle < handle

properties (SetAccess = private)

Date = date

PassKey = randi(9,[1,7])

end

properties

Category {mustBeMember(Category,{'new','change'})} = 'new'

end

end

Create the meta.class object using the? operator with the class name:

mc = ?BasicHandle

mc =

class with properties:

Name: 'BasicHandle'

Description: ''

16 Information from Class Metadata