A guard is associated with a transition. At the time an
event is dispatched, the guard is evaluated, and if false, its
transition is disabled. In the UML metamodel,
Guard is a child of
A guard is shown on the diagram by the text of its
expression in square brackets (
The details tabs that are active for guards are as follows.
Standard tab, containing the stereotypes for the
guard. In the UML metamodel,
Guard has no standard stereotypes
Standard tab. In the UML metamodel,
Guard has no standard tagged
Navigate up through the package structure.
This creates a new Stereotype (see Section 16.6, “Stereotype”) for the selected guard, navigating immediately to the properties tab for that stereotype.
Delete from Model
This deletes the guard from the model
This is a deletion from the model, not just the diagram.
Text box. The name of the guard. By convention guard names start with a lower case letter and use bumpy caps to divide words within the name.
ArgoUML does not enforce this naming convention.
Text box, showing the transition that owns this guard.
Button 1 double-click on the transition navigates to that transition.
Text box. The expression that defines the guard.
Text box. This indicates that the expression is written in a particular interpretation language with which to evaluate the text.