public static bool Match(Operator op, ComparableComparator comparator, IComparable leftValue, Expression rightExpression, long rightExpressionRow)
{
switch (op)
{
case Operator.IsIn:
case Operator.NotIn:
{
long rightRowCount = rightExpression.RowCount();
for (long expRow = 0; expRow != rightRowCount; ++expRow)
{
var rightValue = rightExpression.GetComparableValue(expRow);
if (Compare(comparator, leftValue, rightValue) == 0)
{
return(op == Operator.IsIn);
}
}
return(op == Operator.NotIn);
}
default:
{
var rightValue = rightExpression.GetComparableValue(rightExpressionRow);
return(Match(op, comparator(leftValue, rightValue)));
}
}
}
public static int Compare(ComparableComparator comparator, IComparable leftValue, IComparable rightValue)
{
try
{
return(comparator(leftValue, rightValue));
}
catch (Exception e)
{
throw new Exception("Failed to compare values '" + (leftValue == null ? "null" : leftValue.ToString())
+ "' and '" + (rightValue == null ? "null" : rightValue.ToString()) + "'. "
+ e.Message);
}
}
public static bool Match(Operator op, ComparableComparator comparator, IComparable leftValue, IComparable rightValue)
{
return(Match(op, Compare(comparator, leftValue, rightValue)));
}
