Main Content

find

Find architecture model elements using query

collapse all in page

Syntax

[paths] = find(model,constraint,Name=Value)
[paths, elements] = find(___)
[elements] = find(___)
[paths] = find(model,constraint,rootArch,Name=Value)

Description

[paths] = find(model,constraint,Name=Value) finds all element paths starting from the root architecture of the model that satisfy the constraint query, with additional options specified by one or more name-value arguments.

example

[paths, elements] = find(___) returns the component elements elements and their paths that satisfy the constraint query. Follow the syntax above for input arguments. If rootArch is not provided, then the function finds model elements in the root architecture of the model. The output argument paths contains a fully qualified named path for each component in elements from the given root architecture.

example

[elements] = find(___) finds all component, port, or connector elements elements, that satisfy the constraint query, with additional options specified by one or more name-value arguments, which must include 'Port' or 'Connector' for 'ElementType'.

example

[paths] = find(model,constraint,rootArch,Name=Value) finds all element paths starting from the specified root architecture rootArch that satisfy the constraint query, with additional options specified by one or more name-value arguments.

example

Examples

collapse all

Import a model and run a query to select architectural elements that have a stereotype based on the specified subconstraint.

import systemcomposer.query.*;
scKeylessEntrySystem
modelObj = systemcomposer.openModel("KeylessEntryArchitecture");
find(modelObj,HasStereotype(IsStereotypeDerivedFrom("AutoProfile.BaseComponent")),...
 Recurse=true,IncludeReferenceModels=true)

Create a query to find components that contain the letter c in their Name property.

constraint = contains(systemcomposer.query.Property("Name"),"c");
find(modelObj,constraint,Recurse=true,IncludeReferenceModels=true)
Open Live Script

Find elements in an architecture model based on a System Composer™ query.

Create Model

Create an architecture model with two components. 

m = systemcomposer.createModel("exModel");
comps = m.Architecture.addComponent(["c1","c2"]);

Create Profile and Stereotypes

Create a profile and stereotypes for your architecture model.

pf = systemcomposer.profile.Profile.createProfile("mProfile");
b = pf.addStereotype("BaseComp",AppliesTo="Component",Abstract=true);
s = pf.addStereotype("sComp",Parent=b);

Apply Profile and Stereotypes

Apply the profile and stereotypes to your architecture model.

m.Architecture.applyProfile(pf.Name)
comps(1).applyStereotype(s.FullyQualifiedName)

Find the Element

Find the element in your architecture model based on a query.

import systemcomposer.query.*
[p, elem] = find(m, HasStereotype(IsStereotypeDerivedFrom("mProfile.BaseComp")),...
Recurse=true,IncludeReferenceModels=true)
p = 1x1 cell array
    {'exModel/c1'}


elem = 
  Component with properties:

     IsAdapterComponent: 0
           Architecture: [1x1 systemcomposer.arch.Architecture]
                   Name: 'c1'
                 Parent: [1x1 systemcomposer.arch.Architecture]
                  Ports: [0x0 systemcomposer.arch.ComponentPort]
             OwnedPorts: [0x0 systemcomposer.arch.ComponentPort]
      OwnedArchitecture: [1x1 systemcomposer.arch.Architecture]
             Parameters: [0x0 systemcomposer.arch.Parameter]
               Position: [15 15 65 76]
                  Model: [1x1 systemcomposer.arch.Model]
         SimulinkHandle: 154.0056
    SimulinkModelHandle: 152.0012
                   UUID: '650b22c1-c4a6-4bc0-8411-8d09a3eb7a68'
            ExternalUID: ''

Clean Up

Remove the model and the profile.

cleanUpFindElementsInModel

Create a model to query and create two components.

m = systemcomposer.createModel("exModel");
comps = m.Architecture.addComponent(["c1","c2"]);
port = comps(1).Architecture.addPort("cport1","in");

Create a query to find ports that contain the letter c in their Name property.

constraint = contains(systemcomposer.query.Property("Name"),"c");
find(m,constraint,Recurse=true,IncludeReferenceModels=true,ElementType="Port")
import systemcomposer.query.*;
scKeylessEntrySystem
modelObj = systemcomposer.openModel("KeylessEntryArchitecture");
find(modelObj,HasStereotype(IsStereotypeDerivedFrom("AutoProfile.BaseComponent")),...
 modelObj.Architecture,Recurse=true,IncludeReferenceModels=true)

Input Arguments

collapse all

Architecture model, specified as a systemcomposer.arch.Model object.

Query, specified as a systemcomposer.query.Constraint object representing specific conditions.

A constraint can contain a subconstraint that can be joined with another constraint using AND or OR. A constraint can be negated using NOT.

Query Objects and Conditions for Constraints

Query ObjectCondition
PropertyA non-evaluated value for the given property or stereotype property.
PropertyValueAn evaluated property value from a System Composer object or a stereotype property.
HasConnectorA component has a connector that satisfies the given subconstraint.
HasPortA component has a port that satisfies the given subconstraint.
HasInterfaceA port has an interface that satisfies the given subconstraint.
HasInterfaceElementAn interface has an interface element that satisfies the given subconstraint.
HasStereotypeAn architecture element has a stereotype that satisfies the given subconstraint.
IsInRangeA property value is within the given range.
AnyComponentAn element is a component and not a port or connector.
IsStereotypeDerivedFrom A stereotype is derived from the given stereotype.

Root architecture of model, specified as a systemcomposer.arch.Architecture object or the Architecture property of a systemcomposer.arch.Model object.

Example: modelObj.Architecture

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: find(model,constraint,Recurse=true,IncludeReferenceModels=true)

Option to recursively search model or to only search a specific layer, specified as 1 (true) to recursively search or 0 (false). to only search the specific layer.

Example: find(model,constraint,Recurse=true)

Data Types: logical

Option to search for reference architectures, specified as 1 (true) or 0 (false).

Example: find(model,constraint,IncludeReferenceModels=true)

Data Types: logical

Option to search by type, specified as one of these types

  • "Component" to find components to satisfy the query

  • "Port" to find ports to satisfy the query

  • "Connector' to find connectors to satisfy the query

Example: find(model,constraint,ElementType="Port")

Data Types: char | string

Output Arguments

collapse all

Element paths, returned as a cell array of character vectors that satisfy constraint.

Data Types: char

Elements, returned as systemcomposer.arch.Element objects that satisfy constraint.

More About

collapse all

Definitions

TermDefinitionApplicationMore Information
architecture

A System Composer™ architecture represents a system of components and how they interface with each other structurally and behaviorally.

Different types of architectures describe different aspects of systems. You can use views to visualize a subset of components in an architecture. You can define parameters on the architecture level using the Parameter Editor.
root

A root is at the top of an architecture hierarchy. A root architecture has a boundary defined by its architecture ports that surround the system of interest.

The root architecture has a system boundary surrounding your architecture model. You can add architecture ports that define interfaces across the boundary.

Compose Architectures Visually

model

A System Composer model is the file that contains architectural information, such as components, ports, connectors, interfaces, and behaviors.

Perform operations on a model:

  • Extract root-level architecture.

  • Apply profiles.

  • Link interface data dictionaries.

  • Generate instances from model architecture.

A System Composer model is stored as an SLX file.

Create Architecture Model with Interfaces and Requirement Links
component

A component is a replaceable part of a system that fulfills a clear function in the context of an architecture. A component defines an architectural element, such as a function, another system, hardware, software, or other conceptual entity. A component can also be a subsystem or subfunction.

Represented as a block, a component is a part of an architecture model that can be separated into reusable artifacts. Transfer information between components with:

Compose Architectures Visually

port

A port is a node on a component or architecture that represents a point of interaction with its environment. A port permits the flow of information to and from other components or systems.

  • Component ports are interaction points on the component to other components.

  • Architecture ports are ports on the boundary of the system, whether the boundary is within a component or the overall architecture model. The root architecture has a boundary defined by its ports.

Compose Architectures Visually

connector

Connectors are lines that provide connections between ports. Connectors describe how information flows between components or architectures.

A connector allows two components to interact without defining the nature of the interaction. Set an interface on a port to define how the components interact.

Compose Architectures Visually

TermDefinitionApplicationMore 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.
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.

System Composer has two types of hierarchy diagrams:

  • Component hierarchy diagrams display components in tree form with parents above children. In a component hierarchy view, each referenced model is represented as many times as it is used.

  • Architecture hierarchy diagrams display unique component architecture types and their relationships using composition connections. In an architecture hierarchy view, each referenced model is represented only once.

Display Component Hierarchy and Architecture Hierarchy Using Views

Version History

Introduced in R2019a

See Also

| | | | | | |

Topics