public DataflowCollection(Naiad.Dataflow.Stream <Weighted <R>, T> output)
{
this.output = output;
}
/// <summary>
/// Counts records in the input stream, emitting new counts as they change.
/// </summary>
/// <typeparam name="TRecord">record type</typeparam>
/// <param name="stream">input stream</param>
/// <returns>stream of counts</returns>
public static Naiad.Dataflow.Stream <Pair <TRecord, Int64>, Epoch> StreamingCount <TRecord>(this Naiad.Dataflow.Stream <TRecord, Epoch> stream)
{
return(Naiad.Frameworks.Foundry.NewStage(stream, (i, s) => new CountVertex <TRecord>(i, s), x => x.GetHashCode(), null, "Count"));
}