Shoal GMS's reference implementations of the client-side ActionFactory and Action sub-types

This package contains reference implementations of the various Action and ActionFactory sub-type interfaces. These are provided for convenience purposes. Clients are free to have their own implementations of these interfaces should there be a need for a different implementation.

A specific ActionFactory sub type produces a corresponding Action sub type. For instance, a FailureNotificationActionFactory produces a FailureNotificationAction instance. An Action sub type consumes a corresponding Signal sub type. A Signal sub type stands for a specific group event. For instance, the FailureNotificationAction consumes a FailureNotificationSignal. GMS generates a specific Signal sub type's implementation in each member process for a given group event and passes it to the corresponding Action instance(s) in a separate thread.