Interface SequenceReportingEventHandler<T>

  • Type Parameters:
    T - event implementation storing the data for sharing during exchange or parallel coordination of an event.
    All Superinterfaces:
    EventHandler<T>

    public interface SequenceReportingEventHandler<T>
    extends EventHandler<T>
    Used by the BatchEventProcessor to set a callback allowing the EventHandler to notify when it has finished consuming an event if this happens after the EventHandler.onEvent(Object, long, boolean) call.

    Typically this would be used when the handler is performing some sort of batching operation such as writing to an IO device; after the operation has completed, the implementation should call Sequence.set(long) to update the sequence and allow other processes that are dependent on this handler to progress.

    • Method Detail

      • setSequenceCallback

        void setSequenceCallback​(Sequence sequenceCallback)
        Call by the BatchEventProcessor to setup the callback.
        Parameters:
        sequenceCallback - callback on which to notify the BatchEventProcessor that the sequence has progressed.