systemcomposer.query.Constraint
Query constraint
Description
The Constraint
object represents all System Composer™ query constraints.
Object Functions
AnyComponent | Create query to select all components in model |
IsStereotypeDerivedFrom | Create query to select stereotype derived from qualified name |
HasStereotype | Create query to select architectural elements with stereotype based on specified sub-constraint |
HasPort | Create query to select architectural elements with port on component based on specified sub-constraint |
HasInterface | Create query to select architectural elements with interface on port based on specified sub-constraint |
HasInterfaceElement | Create query to select architectural elements with interface element on interface based on specified sub-constraint |
IsInRange | Create query to select range of property values |
Property | Create query to select non-evaluated values for object properties or stereotype properties for elements |
PropertyValue | Create query to select property from object or stereotype property and then evaluate property value |
Examples
Find Elements in Model Using Queries
Find components in a System Composer model using queries.
Import the package that contains all of the System Composer queries.
import systemcomposer.query.*
Open the model.
scKeylessEntrySystem
model = systemcomposer.loadModel("KeylessEntryArchitecture");
Find all the software components in the system.
con1 = HasStereotype(Property("Name") == "SoftwareComponent"); [compPaths,compObjs] = model.find(con1)
compPaths = 5x1 cell
{'KeylessEntryArchitecture/Door Lock//Unlock System/Door Lock Controller' }
{'KeylessEntryArchitecture/Engine Control System/Keyless Start Controller'}
{'KeylessEntryArchitecture/FOB Locator System/FOB Locator Module' }
{'KeylessEntryArchitecture/Lighting System/Lighting Controller' }
{'KeylessEntryArchitecture/Sound System/Sound Controller' }
compObjs=1×5 object
1x5 Component array with properties:
IsAdapterComponent
Architecture
ReferenceName
Name
Parent
Ports
OwnedPorts
OwnedArchitecture
Parameters
Position
Model
SimulinkHandle
SimulinkModelHandle
UUID
ExternalUID
Include reference models in the search.
softwareComps = model.find(con1,IncludeReferenceModels=true)
softwareComps = 9x1 cell
{'KeylessEntryArchitecture/Door Lock//Unlock System/Door Lock Controller' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Front Driver Door Lock Sensor/Detect Door Lock Status'}
{'KeylessEntryArchitecture/Door Lock//Unlock System/Front Pass Door Lock Sensor/Detect Door Lock Status' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Driver Door Lock Sensor/Detect Door Lock Status' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Pass Door Lock Sensor/Detect Door Lock Status' }
{'KeylessEntryArchitecture/Engine Control System/Keyless Start Controller' }
{'KeylessEntryArchitecture/FOB Locator System/FOB Locator Module' }
{'KeylessEntryArchitecture/Lighting System/Lighting Controller' }
{'KeylessEntryArchitecture/Sound System/Sound Controller' }
Find all the base components in the system.
con2 = HasStereotype(IsStereotypeDerivedFrom("AutoProfile.BaseComponent"));
baseComps = model.find(con2)
baseComps = 18x1 cell
{'KeylessEntryArchitecture/Sound System/Sound Controller' }
{'KeylessEntryArchitecture/Engine Control System/Start//Stop Button' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Door Lock Controller' }
{'KeylessEntryArchitecture/Engine Control System/Keyless Start Controller' }
{'KeylessEntryArchitecture/Sound System/Dashboard Speaker' }
{'KeylessEntryArchitecture/FOB Locator System/FOB Locator Module' }
{'KeylessEntryArchitecture/Lighting System/Lighting Controller' }
{'KeylessEntryArchitecture/FOB Locator System/Center Receiver' }
{'KeylessEntryArchitecture/FOB Locator System/Front Receiver' }
{'KeylessEntryArchitecture/FOB Locator System/Rear Receiver' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Front Driver Door Lock Sensor' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Front Pass Door Lock Sensor' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Driver Door Lock Sensor' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Rear Pass Door Lock Sensor' }
{'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' }
Find all components using the interface KeyFOBPosition
.
con3 = HasPort(HasInterface(Property("Name") == "KeyFOBPosition")); con3_a = HasPort(Property("InterfaceName") == "KeyFOBPosition"); keyFOBPosComps = model.find(con3)
keyFOBPosComps = 10x1 cell
{'KeylessEntryArchitecture/Door Lock//Unlock System' }
{'KeylessEntryArchitecture/Door Lock//Unlock System/Door Lock Controller' }
{'KeylessEntryArchitecture/Engine Control System' }
{'KeylessEntryArchitecture/Engine Control System/Keyless Start Controller'}
{'KeylessEntryArchitecture/FOB Locator System' }
{'KeylessEntryArchitecture/FOB Locator System/FOB Locator Module' }
{'KeylessEntryArchitecture/Lighting System' }
{'KeylessEntryArchitecture/Lighting System/Lighting Controller' }
{'KeylessEntryArchitecture/Sound System' }
{'KeylessEntryArchitecture/Sound System/Sound Controller' }
Find all components whose WCET
is less than or equal to 5 ms
.
con4 = PropertyValue("AutoProfile.SoftwareComponent.WCET") <= 5;
model.find(con4)
ans = 1x1 cell array
{'KeylessEntryArchitecture/Sound System/Sound Controller'}
You can specify units for automatic unit conversion.
con5 = PropertyValue("AutoProfile.SoftwareComponent.WCET") <= Value(5,'ms'); query1Comps = model.find(con5)
query1Comps = 3x1 cell
{'KeylessEntryArchitecture/Sound System/Sound Controller' }
{'KeylessEntryArchitecture/FOB Locator System/FOB Locator Module'}
{'KeylessEntryArchitecture/Lighting System/Lighting Controller' }
Find all components whose WCET
is greater than 1 ms
or that have a cost greater than 10 USD
.
con6 = PropertyValue("AutoProfile.SoftwareComponent.WCET") > Value(1,'ms') | PropertyValue("AutoProfile.Base.Cost") > Value(10,'USD'); query2Comps = model.find(con6)
query2Comps = 2x1 cell
{'KeylessEntryArchitecture/Engine Control System/Keyless Start Controller'}
{'KeylessEntryArchitecture/Door Lock//Unlock System/Door Lock Controller' }
Close the model.
model.close
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:
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
See Also
find
| createView
| modifyQuery
| runQuery
| removeQuery
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