/// <summary>
/// Same type of query as <see cref="EventsByTag"/> but the event stream
/// is completed immediately when it reaches the end of the "result set". Events that are
/// stored after the query is completed are not included in the event stream.
/// </summary>
public Source <EventEnvelope, NotUsed> CurrentEventsByTag(string tag, Offset offset = null)
{
offset = offset ?? new Sequence(0L);
switch (offset)
{
case Sequence seq:
return(Source.ActorPublisher <EventEnvelope>(EventsByTagPublisher.Props(tag, seq.Value, long.MaxValue, null, _maxBufferSize, _writeJournalPluginId))
.MapMaterializedValue(_ => NotUsed.Instance)
.Named($"CurrentEventsByTag-{tag}"));
case NoOffset _:
return(CurrentEventsByTag(tag, new Sequence(0L)));
default:
throw new ArgumentException($"SqlReadJournal does not support {offset.GetType().Name} offsets");
}
}
/// <summary>
/// Same type of query as <see cref="EventsByTag"/> but the event stream
/// is completed immediately when it reaches the end of the "result set". Events that are
/// stored after the query is completed are not included in the event stream.
/// </summary>
public Source <EventEnvelope, NotUsed> CurrentEventsByTag(string tag, long offset) =>
Source.ActorPublisher <EventEnvelope>(EventsByTagPublisher.Props(tag, offset, long.MaxValue, null, _maxBufferSize, _writeJournalPluginId))
.MapMaterializedValue(_ => NotUsed.Instance)
.Named("EventsByTag-" + tag);
