public virtual void ClearTotalNumberOfTerms()
{
numberOfTerms = 0;
}
/// <summary> Expert: Resets the counting of unique terms.
/// Do this before executing the filter.
/// </summary>
/// <seealso cref="getTotalNumberOfTerms">
/// </seealso>
public virtual void ClearTotalNumberOfTerms()
{
query.ClearTotalNumberOfTerms();
}