internal Result <object> Query(string filter, int start, int count, string orderby)
{
filter = filter.Trim();
if (filter == "")
{
return(Query(start, count, orderby));
}
DateTime dt = FastDateTime.Now;
_log.Debug("query : " + _view.Name);
_log.Debug("query : " + filter);
_log.Debug("orderby : " + orderby);
WAHBitArray ba = new WAHBitArray();
var delbits = _deletedRows.GetBits();
if (filter != "")
{
LambdaExpression le = null;
if (_lambdacache.TryGetValue(filter, out le) == false)
{
le = System.Linq.Dynamic.DynamicExpression.ParseLambda(_view.Schema, typeof(bool), filter, null);
_lambdacache.Add(filter, le);
}
QueryVisitor qv = new QueryVisitor(QueryColumnExpression);
qv.Visit(le.Body);
ba = ((WAHBitArray)qv._bitmap.Pop()).AndNot(delbits);
}
else
{
ba = WAHBitArray.Fill(_viewData.Count()).AndNot(delbits);
}
var order = SortBy(orderby);
_log.Debug("query bitmap done (ms) : " + FastDateTime.Now.Subtract(dt).TotalMilliseconds);
dt = FastDateTime.Now;
// exec query return rows
return(ReturnRows <object>(ba, null, start, count, order));
}