protected override ISortedStream <Correlated <AggregationResult <TIn, TKey, TAggrRes> >, TKey> CreateOutputStream(AggregateCorrelatedSortedArgs <TIn, TAggrRes, TKey> args)
{
return(CreateSortedStream(
args.InputStream.Observable.AggregateGrouped(
i => new Correlated <TAggrRes>
{
Row = args.CreateEmptyAggregation(i.Row),
CorrelationKeys = new HashSet <Guid>()
},
args.InputStream.SortDefinition,
(a, i) =>
{
a.Row = args.Aggregate(a.Row, i.Row);
a.CorrelationKeys.UnionWith(i.CorrelationKeys);
return a;
},
(i, a) => new Correlated <AggregationResult <TIn, TKey, TAggrRes> >
{
CorrelationKeys = a.CorrelationKeys,
Row = new AggregationResult <TIn, TKey, TAggrRes>
{
Aggregation = a.Row,
FirstValue = i.Row,
Key = args.InputStream.SortDefinition.GetKey(i)
}
}),
new SortDefinition <Correlated <AggregationResult <TIn, TKey, TAggrRes> >, TKey>(i => i.Row.Key, args.InputStream.SortDefinition.KeyPosition)));
}
public AggregateCorrelatedSortedStreamNode(string name, AggregateCorrelatedSortedArgs <TIn, TAggrRes, TKey> args) : base(name, args)
{
}
