Scalar Switch Action - modelint/shlaer-mellor-metamodel GitHub Wiki

A scalar switch action takes a Scalar Flow as input. This flow must provide a value defined as part of an enumerated type.

Action language will provide this flow either as a temporary variable or an output of some other Action.

Here is an example in Scrall:

valve position? {
    .open : close -> my valve
    .closed : open -> my valve
}

The above example takes its input from the valve position temporary variable and applies one case for each possible enumerated value.

No non-referential attributes