/// <summary>
/// save events to db then apply event to state
/// snapshot will be created when needed
/// Returns id of the newly applied event(from db)
/// </summary>
protected async Task <long> ApplyEvents(TEvent[] events, long?rootEventId = null, long?parentEventId = null)
{
// apply events to EventSource
var eventId = await EventSource.ApplyEvents(events, rootEventId, parentEventId);
// does this aggregate has aggregate stream settings
if (_hasAggregateStream)
{
// notify AggregateStreamGrain about new event
var aggregateGrain = GrainFactory.GetGrain <IAggregateStreamGrain>(_aggregateName);
// fire and forget request
aggregateGrain.InvokeOneWay(handler => handler.Notify(eventId));
}
// return eventId
return(eventId);
}