internal StageInput(Stage stage)
: this(stage, null)
{
}
internal StageOutput(Stage stage, Dataflow.ITimeContext <T> context)
: this(stage, context, null)
{
}
internal StageInput(Stage stage, Expression <Func <R, int> > partitionedBy)
{
this.PartitionedBy = partitionedBy;
this.ForStage = stage;
this.endpointMap = new Dictionary <int, VertexInput <R, T> >();
}