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meta.DynamicProperty - meta.DynamicProperty class describes dynamic property of MATLAB object

Description

The meta.DynamicProperty class contains descriptive information about dynamic properties that you have added to an instance of a MATLAB classes. The MATLAB class must be a subclass of dynamicprops. The properties of the meta.DynamicProperty class correspond to property attributes that you specify from within class definitions. Dynamic properties are not defined in classdef blocks, but you can set their attributes by setting the meta.DynamicProperty object properties.

You add a dynamic property to an object using the addprop method of the dynamicprops class. The addprop method returns a meta.DynamicProperty instance representing the new dynamic property. You can modify the properties of the meta.DynamicProperty object to set the attributes of the dynamic property or to add set and get access methods, which would be defined in the classdef for regular properties.

You cannot instantiate the meta.DynamicProperty class. You must use addprop to obtain a meta.DynamicProperty object.

To remove the dynamic property, call the delete handle class method on the meta.DynamicProperty object.

Obtain a meta.DynamicProperty object from the addprops method, which returns an array of meta.DynamicProperty objects, one for each dynamic property.

See Dynamic Properties — Adding Properties to an Instance for more information.

Properties

Property	Purpose
Name	Name of the property.
Description	Can contain text
DetailedDescription	Can contain text
Abstract attribute, default = false	If true, the property has no implementation, but a concrete subclass must redefine this property without Abstract being set to true. Abstract properties cannot define set or get access methods. See Controlling Property Access Abstract properties cannot define initial values. Assigning a Default Value All subclasses must specify the same values as the superclass for the property SetAccess and GetAccess attributes. Abstract=true should be used with the class attribute Sealed=false (the default).
constant attribute, default = false	Set to true if you want only one value for this property in all instances of the class. Subclasses inherit constant properties, but cannot change them. Constant properties cannot be Dependent SetAccess is ignored. See Defining Named Constants
GetAccess attribute, default = public	public – unrestricted access protected – access from class or derived classes private – access by class members only
SetAccess attribute, default = public	public – unrestricted access protected – access from class or derived classes private – access by class members only
Dependent attribute, default = false	If false, property value is stored in object. If true, property value is not stored in object and the set and get functions cannot access the property by indexing into the object using the property name. See Property Get Methods
Transient attribute, default = false	If true, property value is not saved when object is saved to a file. See The Save and Load Process for more about saving objects.
Hidden attribute, default = false	Determines whether the property should be shown in a property list (e.g., Property Inspector, call to properties, etc.).
GetObservable attribute, default = false	If true, and it is a handle class property, then listeners can be created for access to this property. The listeners are called whenever property values are queried. See Property-Set and Query Events
SetObservable attribute, default = false	If true, and it is a handle class property, then listeners can be created for access to this property. The listeners are called whenever property values are modified. See Property-Set and Query Events
GetMethod	Function handle of the get method associated with this property. Empty if there is no get method specified. See Property Get Method
SetMethod	Function handle of the set method associated with this property. Empty if there is no set method specified. See Property Set Methods
DefiningClass	The meta.class object representing the class that defines this property.

Events

See Listening for Changes to Property Values for information on using property events.

Event Name	Purpose
PreGet	Event occurs just before property is queried.
PostGet	Event occurs just after property has been queried
PreSet	Event occurs just before this property is modified
PostSet	Event occurs just after this property has been modified
ObjectBeingDestroyed	Inherited from handle

See Also

addprop, handle

meta.class.fromName

meta.event

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