Transformation of Signals contained by non-class elements

[itsdani]

Currently UML Signals are transformed into XTClassEvents if they are contained by a Class and there is a SignalEvent with its signal reference set to the Signal. Transformation of Signals in other containers (e.g. Components or StateMachines) results in an exception.

What are the requirements of transforming Signals to xtUML elements? Are there any case when Signals with a corresponding SignalEvent contained by a non-class element should be transformed? If there isn't, can a validation rule be added to ensure that Signals are always contained by a Class?

[abelhegedus]

UML Integration now only transforms events that are specified as nested classifiers of an XTClass.