private void CalculateAggregate(AggregateKey key)
{
ImmutableArray <Int32> columnMapping = ColumnDependencyMappings[key];
ImmutableArray <Int32> aggregateMapping = AggregateDependencyMappings[key];
AggregateValueBag aggregateBag = new AggregateValueBag(AggregateRow, aggregateMapping);
Aggregate <TInput> aggregate = Aggregates[key];
Int32 aggregateIndex = AggregateIndexes[key];
AggregateRow[aggregateIndex] = aggregate.Calculate(aggregateBag, Rows.Select(row => new ColumnValueBag <TInput>(row, columnMapping)));
}
private void CalculateColumn(ColumnKey key)
{
ImmutableArray <Int32> columnMapping = ColumnDependencyMappings[key];
ImmutableArray <Int32> aggregateMapping = AggregateDependencyMappings[key];
AggregateValueBag aggregateBag = new AggregateValueBag(AggregateRow, aggregateMapping);
Column <TInput> column = Columns[key];
Int32 columnIndex = ColumnIndexes[key];
foreach (var row in Rows)
{
var bag = new ColumnValueBag <TInput>(row, columnMapping);
row[columnIndex] = column.Calculate(aggregateBag, new ColumnValueBag <TInput>(row, columnMapping));
}
}
public abstract Object Calculate(AggregateValueBag aggregateValues, ColumnValueBag <TInput> columnValues);
public abstract Object Calculate(AggregateValueBag aggregateValues, IEnumerable <ColumnValueBag <TInput> > rows);