protected virtual object EvalQuery(object item, NPathSelectQuery query)
{
NPathClassName className = (NPathClassName)query.From.Classes[0];
string propertyPath = className.Name;
IList childList = (IList)EvalStringPropertyPath(item, propertyPath);
ArrayList result = InternalGetTable(query, childList);
object[] resultList = new object[result.Count];
int i = 0;
foreach (object[] values in result)
{
object scalarRes = values[0];
if (IsNumber(scalarRes))
{
scalarRes = double.Parse(scalarRes.ToString());
}
resultList[i] = scalarRes;
i++;
}
if (query.IsAggregate)
{
return(resultList[0]);
}
else
{
return(resultList);
}
}
public void ExpandWildcards(NPathSelectQuery query)
{
ArrayList newSelectFieldList = new ArrayList();
foreach (NPathSelectField field in query.Select.SelectFields)
{
string fieldName = field.Alias;
NPathIdentifier path = field.Expression as NPathIdentifier;
if (path != null && path.IsWildcard)
{
string[] parts = path.Path.Split('.');
NPathClassName className = (NPathClassName)query.From.Classes[0];
IClassMap classMap = Context.DomainMap.MustGetClassMap(className.Name);
int i = 0;
foreach (string part in parts)
{
if (i == parts.Length - 1)
{
break;
}
IPropertyMap property = classMap.MustGetPropertyMap(part);
classMap = Context.DomainMap.MustGetClassMap(property.DataType);
i++;
}
ArrayList properties = classMap.GetAllPropertyMaps();
foreach (PropertyMap property in properties)
{
if (property.ReferenceType != ReferenceType.None)
{
continue;
}
NPathSelectField newField = new NPathSelectField();
newField.Alias = null;
NPathIdentifier newPath = new NPathIdentifier();
if (parts.Length > 1)
{
newPath.Path = string.Join(".", parts, 0, parts.Length - 1) + ".";
}
newPath.Path += property.Name;
newField.Expression = newPath;
newSelectFieldList.Add(newField);
}
}
else
{
newSelectFieldList.Add(field);
}
}
query.Select.SelectFields = newSelectFieldList;
}
private void ParseFromClause(NPathFromClause fromClause)
{
do
{
tokenizer.MoveNext();
Token classToken = tokenizer.GetCurrentToken("identifier", "Class name"); // do not localize
NPathClassName className = new NPathClassName();
className.Name = classToken.Text;
fromClause.Classes.Add(className);
tokenizer.MoveNext();
} while (tokenizer.GetCurrentToken().IsType("comma"));
}
