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PropertyValue

Create query to select property from object or stereotype property and then evaluate property value

    Description

    example

    query = PropertyValue(name) creates a query object that the find method and the createView method use to select object properties or stereotype properties for elements based on specified property name and then evaluate the property value.

    Examples

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    Import the package that contains all of the System Composer™ queries.

    import systemcomposer.query.*;
    

    Open the Simulink® project file.

    scKeylessEntrySystem

    Open the model.

    m = systemcomposer.openModel('KeylessEntryArchitecture');

    Create a query to find components that contain the character vector 'Sensor' in their 'Name' property and run the query.

    constraint = PropertyValue('AutoProfile.BaseComponent.Latency')==30;
    latency = find(m,constraint,'Recurse',true,'IncludeReferenceModels',true)
    
    latency = 
    
    4×1 cell array
    
        {'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 Driver Door Lock Actuator' }
        {'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Pass Door Lock Actuator'   }

    Input Arguments

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    Property name for model element, specified as a character vector in the form '<profile>.<stereotype>.<property>' or any property on the designated class.

    Example: 'Name'

    Example: 'AutoProfile.BaseComponent.Latency'

    Data Types: char

    Output Arguments

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    Query, returned as a systemcomposer.query.Constraint object.

    More About

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    Definitions

    TermDefinitionApplicationMore Information
    viewA 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. Construct views by pulling in elements manually. Views create a simplified way to work with complex architectures by focusing on certain parts of the architecture design.

    You can use different types of views to represent the system:

    • Operational views demonstrate how a system will be used and should be well integrated with requirements analysis.

    • Functional views focus on what the system must do to operate.

    • Physical views show how the system is constructed and configured.

    A viewpoint represents a stakeholder perspective that specifies the contents of the view.

    element groupAn element group is a grouping of components in a view.Use element groups to programmatically populate a view.Create Architectural Views Programmatically
    queryA 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 a Model Using Queries

    Introduced in R2019b