LoopNode

Not every task in Activity Diagrams is well-suited to graphical modelling; consider using Action Language Helper (ALH) or Action Language for Foundational UML (Alf)

StructuredActitivityNodes (structured actions) - ADVANCED REFERENCE ONLY

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:04: UML Behavior: Activities quick start

Slide kind

UML Activity Diagram

Once the test fails and the loop is completed, the tokens on the bodyOutput OutputPins from the last iteration are moved to the result OutputPins and offered on any edges outgoing from those OutputPins.

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Unified Modeling Language 2.5.1

After the completion of each execution of the bodyPart of the LoopNode, any remaining tokens on the loopVariable OutputPins are destroyed and tokens on the bodyOutput OutputPins are copied to the corresponding loopVariable OutputPins so that they are ...

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Unified Modeling Language 2.5.1

When the LoopNode begins executing, the tokens on the loopVariableInput InputPins are moved to the corresponding loopVariable OutputPins before the first iteration of the loop.

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Unified Modeling Language 2.5.1

If a LoopNode has loopVariable OutputPins, then it must also have matching sets of loopVariableInput InputPins, bodyOutput OutputPins (owned by Actions within the bodyPart), and result OutputPins.

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Unified Modeling Language 2.5.1

A LoopNode may also define a set of loopVariable OutputPins used to hold intermediate values during each loop iteration. These OutputPins may have outgoing ActivityEdges, in order to make the values they hold available within the test and bodyPart ...

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Unified Modeling Language 2.5.1

After each execution of the bodyPart, the test section is executed again, for the next iteration of the loop.

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Unified Modeling Language 2.5.1

The test section has an Action owning the decider OutputPin with type Boolean identified by the LoopNode. When the test section has completed execution, if the value on the decider OutputPin is true, then the bodyPart is executed. Otherwise ...

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Unified Modeling Language 2.5.1

UML-2.5.1 refers to 'isTestFirst' in 16.11.3.4 but to isTestedFirst in the attributes list for LoopNode under 16.14.30.4 Attributes

Execution of the test section may precede or follow execution of the bodyPart, depending on whether isTestFirst is true or false, respectively. ... If the bodyPart is executed first (isTestFirst=false), it is always executed at least once ...

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Unified Modeling Language 2.5.1

The setupPart of a LoopNode is executed first. When the setupPart has completed execution, the iterative execution of the loop begins.

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Unified Modeling Language 2.5.1

Any ExecutableNode in the LoopNode must be included in the setupPart, test or bodyPart for the LoopNode.

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Unified Modeling Language 2.5.1

A LoopNode is a StructuredActivityNode that represents an iterative loop. A LoopNode consists of a setupPart, a test and a bodyPart, which identify subsets of the ExecutableNodes contained in the LoopNode.

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Unified Modeling Language 2.5.1

LoopNode: running loopVariable example

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:04: UML Behavior: Activities quick start

Slide kind

UML Activity Diagram

LoopNode with loopVariable - ADVANCED REFERENCE

This content has been marked as discussing an ADVANCED topic!

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:04: UML Behavior: Activities quick start

Not every task in Activity Diagrams is well-suited to graphical modelling and LoopNode and ConditionalNode are notoriously fiddly to setup; consider using Action Language Helper (ALH) or Action Language for Foundational UML (Alf)

Cameo Simulation Toolkit 19SP3 DOES NOT support 'setupPart' in LoopNode (because fUML does not)

LoopNode: basic running example

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:04: UML Behavior: Activities quick start

Slide kind

UML Activity Diagram

7.11.2.7 LoopNode [1] fuml_loop_node_no_setup_part no setupParts in fUML self.setupPart->isEmpty()

Source

Semantics of a Foundational Subset for Executable UML Models 1.4

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