public OrFilter() : base("OR") { InnerFilters.Add(new ConstantFilter("0")); }
public AndFilter() : base("AND") { InnerFilters.Add(new ConstantFilter("1")); }
public override string GetWhereExpression() { return(String.Join(separator, InnerFilters.Select( filter => String.Format("({0})", filter.GetWhereExpression())))); }