private static BasicFilterBase Clone(this BasicFilterGroup group)
{
var result = new BasicFilterGroup(group.Operator);
foreach (var node in group.Nodes)
{
result.Nodes.Add(Clone(node));
}
return(result);
}
public BaseCriteria Convert(BasicFilterGroup group)
{
if (group == null)
{
throw new ArgumentNullException("group");
}
if (group.Nodes.IsEmptyOrNull())
{
throw new ArgumentNullException("group.Nodes");
}
var result = Criteria.Empty;
foreach (var node in group.Nodes)
{
var sub = Convert(node);
if (group.Operator == LogicalOp.And ||
group.Operator == LogicalOp.NotAnd)
{
result &= sub;
}
else
{
result |= sub;
}
}
result = ~(result);
if (group.Operator == LogicalOp.NotOr ||
group.Operator == LogicalOp.NotAnd)
{
result = ~(!result);
}
return(result);
}