protected override ISortedStream <AggregationResult <TIn, TKey, TAggrRes>, TKey> CreateOutputStream(PivotSortedArgs <TIn, TAggrRes, TKey> args)
{
var aggregationProcessor = new AggregationProcessor <TIn, TIn, TAggrRes, Core.Aggregation.Aggregator <TIn> >(args.AggregationDescriptor);
return(CreateSortedStream(
args.InputStream.Observable.AggregateGrouped(
aggregationProcessor.CreateAggregators,
args.InputStream.SortDefinition.GetKey,
aggregationProcessor.Aggregate,
(i, k, a) => new AggregationResult <TIn, TKey, TAggrRes>
{
Aggregation = aggregationProcessor.CreateInstance(a),
FirstValue = i,
Key = k
}),
new SortDefinition <AggregationResult <TIn, TKey, TAggrRes>, TKey>(i => i.Key, args.InputStream.SortDefinition.KeyPosition)));
}
public PivotSortedStreamNode(string name, PivotSortedArgs <TIn, TAggrRes, TKey> args) : base(name, args)
{
}
