/// <summary> Gets a scalar value, calculated with the aggregate and expression specified. the field index specified is the field the expression and aggregate are applied on.</summary>
/// <param name="fieldIndex">Field index of field to which to apply the aggregate function and expression</param>
/// <param name="expressionToExecute">The expression to execute. Can be null</param>
/// <param name="aggregateToApply">Aggregate function to apply. </param>
/// <param name="filter">The filter to apply to retrieve the scalar</param>
/// <returns>the scalar value requested</returns>
public object GetScalar(ThreadFieldIndex fieldIndex, IExpression expressionToExecute, AggregateFunction aggregateToApply, IPredicate filter)
{
return(GetScalar(fieldIndex, expressionToExecute, aggregateToApply, filter, null, null));
}
/// <summary> Gets a scalar value, calculated with the aggregate. the field index specified is the field the aggregate are applied on.</summary>
/// <param name="fieldIndex">Field index of field to which to apply the aggregate function and expression</param>
/// <param name="aggregateToApply">Aggregate function to apply. </param>
/// <returns>the scalar value requested</returns>
public object GetScalar(ThreadFieldIndex fieldIndex, AggregateFunction aggregateToApply)
{
return(GetScalar(fieldIndex, null, aggregateToApply, null, null, null));
}
