Interface BabelEvent

All Known Subinterfaces:

MessageEvent, NetworkEvent, ProtocolEvent

All Known Implementing Classes:

AskNeighbourSet, BabelNodeProbe, BroadcastDeliverEvent, BroadcastRequest, ConnectionDownEvent, ConnectionFailedEvent, ConnectionUpEvent, MessageInEvent, MessageOutFailedEvent, MessageOutSuccessEvent, NeighbourDown, NeighbourSet, NeighbourUp, SignedMessageIn, SignedMessageOutFailed, SignedMessageOutSuccess, StartEvent

public sealed interface BabelEvent
permits ProtocolEvent, NetworkEvent, MessageEvent, StartEvent

Root sealed interface for all events processed by the Babel runtime.

The four permitted subtypes partition the event space:

• ProtocolEvent — user-defined events used for intra-protocol and inter-protocol communication (e.g., timers, notifications).
• NetworkEvent — connection lifecycle events generated by a BabelChannel (ConnectionUpEvent, ConnectionDownEvent, ConnectionFailedEvent).
• MessageEvent — message send/receive outcome events (MessageInEvent, MessageOutSuccessEvent, MessageOutFailedEvent).
• StartEvent — delivered once to each protocol when the runtime starts, carrying the Babel instance and the protocol's assigned channel.