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Class: slreq.Reference
Package: slreq

Check if import node has available update

Since R2019b


tf = hasNewUpdate(topRef)


tf = hasNewUpdate(topRef) checks if the external document associated with the import node topRef has changed since the document was last imported.

Input Arguments

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Import node, specified as an slreq.Reference object.

Output Arguments

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Available update indicator, returned as a 1 or 0 of data type logical.


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This example shows how to check if the import node has an available update and update the referenced requirements.

Load the crs_req requirement set.

rs = slreq.load("crs_req");

Get a handle to the import node of the requirement set.

topRef = children(rs);

Check if the import node has an available update.

tf = hasNewUpdate(topRef)
tf = logical

A result of 1 means that topRef has been updated since the last time it was imported. Update the referenced requirements under the import node.

[status,changelist] = updateFromDocument(topRef)
status = 
'Update completed. Refer to Comments on Import1.'
changelist = 
    'Updated: CC003_01. Properties: description
     Updated: CC003_02. Properties: description
     Updated: CC003_03. Properties: description
     Updated: CC003_04. Properties: description
     Updated: Cruise Control SET Indicator Light. Properties: description
     Updated: Cruise control buttons. Properties: description
     Updated: Cruise control mode indicator. Properties: description
     Deleted: Cruise control modes
     Updated: Dashboard image. Properties: description
     Inserted: Dashboard image_1
     Updated: Deactivating cruise control. Properties: description
     Deleted: Disabling cruise control
     Updated: Enabling cruise control. Properties: description
     Updated: Other inputs. Properties: description
     Updated: ROM. Properties: description
     Updated: Resuming cruise control. Properties: description
     Inserted: Simulink_requirement_item_1
     Inserted: Simulink_requirement_item_10
     Inserted: Simulink_requirement_item_11
     Inserted: Simulink_requirement_item_12
     Inserted: Simulink_requirement_item_13
     Inserted: Simulink_requirement_item_14
     Inserted: Simulink_requirement_item_15
     Inserted: Simulink_requirement_item_2
     Inserted: Simulink_requirement_item_3
     Inserted: Simulink_requirement_item_4
     Inserted: Simulink_requirement_item_5
     Inserted: Simulink_requirement_item_6
     Inserted: Simulink_requirement_item_7
     Inserted: Simulink_requirement_item_8
     Inserted: Simulink_requirement_item_9
     Updated: System Inputs. Properties: description
     Updated: System outputs. Properties: description
     Updated: Throttle value calculation. Properties: description
     Inserted: When the vehicle is started. Cru
     Inserted: boolean
     Inserted: boolean_1
     Inserted: boolean_2
     Inserted: boolean_3
     Inserted: boolean_4
     Inserted: boolean_5
     Inserted: single
     Inserted: single_1
     Inserted: single_2
     Inserted: uint8
     Inserted: uint8_1

Version History

Introduced in R2019b