PropertyValue
Create query to select property from object or stereotype property and then evaluate property value
Since R2019b
Description
creates a query query
= PropertyValue(name
)query
that the find
and createView
functions use to select object properties or stereotype properties
for elements based on specified property name name
and then evaluate
the property value.
Examples
Find Model Elements that Satisfy Property Value
Import the package that contains all of the System Composer™ queries.
import systemcomposer.query.*
Open the Simulink® project file for the keyless entry system.
scKeylessEntrySystem
Load the architecture model.
model = systemcomposer.loadModel("KeylessEntryArchitecture");
Create a query to find components with a Latency
property value of 30
and run the query.
constraint = PropertyValue("AutoProfile.BaseComponent.Latency")==30;
latency = find(model,constraint,Recurse=true,IncludeReferenceModels=true)
latency = 4x1 cell
{'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Driver Door Lock Actuator' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Front Driver Door Lock Actuator'}
{'KeylessEntryArchitecture/Door Lock//Unlock System/Front Pass Door Lock Actuator' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Pass Door Lock Actuator' }
Input Arguments
name
— Property name
character vector | string
Property name for model element, specified in the form "<profile>.<stereotype>.<property>"
or any property on the designated class.
Example: "Name"
Example: "AutoProfile.BaseComponent.Latency"
Data Types: char
Output Arguments
query
— Query
query constraint object
Query, returned as a systemcomposer.query.Constraint
object.
More About
Definitions
Term | Definition | Application | More Information |
---|---|---|---|
view | A view shows a customizable subset of elements in a model. Views can be filtered based on stereotypes or names of components, ports, and interfaces, along with the name, type, or units of an interface element. Create views by adding elements manually. Views create a simplified way to work with complex architectures by focusing on certain parts of the architectural design. |
You can use different types of views to represent the system. Switch between a component diagram, component hierarchy, or architecture hierarchy. For software architectures, you can switch to a class diagram view. A viewpoint represents a stakeholder perspective that specifies the contents of the view. | Modeling System Architecture of Keyless Entry System |
element group | An element group is a grouping of components in a view. | Use element groups to programmatically populate a view. | |
query | A query is a specification that describes certain constraints or criteria to be satisfied by model elements. | Use queries to search elements with constraint criteria and to filter views. | Find Elements in Model Using Queries |
component diagram | A component diagram represents a view with components, ports, and connectors based on how the model is structured. | Component diagrams allow you to programmatically or manually add and remove components from the view. | Inspect Components in Custom Architecture Views |
hierarchy diagram | You can visualize a hierarchy diagram as a view with components, ports, reference types, component stereotypes, and stereotype properties. |
There are two types of hierarchy diagrams:
| Display Component Hierarchy and Architecture Hierarchy Using Views |
Version History
Introduced in R2019b
Ouvrir l'exemple
Vous possédez une version modifiée de cet exemple. Souhaitez-vous ouvrir cet exemple avec vos modifications ?
Commande MATLAB
Vous avez cliqué sur un lien qui correspond à cette commande MATLAB :
Pour exécuter la commande, saisissez-la dans la fenêtre de commande de MATLAB. Les navigateurs web ne supportent pas les commandes MATLAB.
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
How to Get Best Site Performance
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)