post
Posts an event to all matching event handlers registered on this Bus.
Handlers are invoked in descending EventHandler.priority order. If a handler throws, the failure is routed to any matching @ExceptionHandler methods; dispatch then continues unless an exception handler itself throws.
Cancellation Semantics
If the event implements Cancelable, its cancellation state is interpreted according to the supplied cancelMode:
CancelMode.IGNORE Cancellation is completely disregarded. All handlers run in normal priority order, regardless of whether the event has been marked as canceled.
CancelMode.RESPECT (default) Cancellation acts as a per-handler filter. Canceled events are delivered only to handlers that explicitly opt in to receiving them via EventHandler.runIfCanceled. Dispatch never short-circuits; all eligible handlers are invoked.
CancelMode.ENFORCE Cancellation acts as a hard stop. As soon as the event is marked canceled—either prior to posting or during handler execution—no further handlers are invoked, regardless of handler preferences.
Exception Handling
If an event handler throws, exception dispatch follows the rules defined by @ExceptionHandler:
matching handlers are invoked in descending priority and specificity,
if no handler processes the throwable:
Exception(and subclasses) are logged and swallowed,non-
Exceptionthrowables (e.g.,Error) are rethrown.
Exceptions thrown by exception handlers themselves are not re-routed and will propagate out of this function.
Parameters
the event instance to dispatch.
determines how cancellation should influence handler delivery.
Posts an event to all matching event handlers registered on this Bus.
Handlers are invoked in descending EventHandler.priority order. If a handler throws, the failure is routed to any matching @ExceptionHandler methods; dispatch then continues unless an exception handler itself throws.
Cancellation Semantics
If the event implements Cancelable, its cancellation state is interpreted according to CancelMode.RESPECT.
Exception Handling
If an event handler throws, exception dispatch follows the rules defined by @ExceptionHandler:
matching handlers are invoked in descending priority and specificity,
if no handler processes the throwable:
Exception(and subclasses) are logged and swallowed,non-
Exceptionthrowables (e.g.,Error) are rethrown.
Exceptions thrown by exception handlers themselves are not re-routed and will propagate out of this function.
Parameters
the event instance to dispatch.