internal Expression Parse(Type type, string query, string sort, out int paramCount)
{
EntityMap map = _maps[type];
if (map == null)
{
throw new Exception("Type " + type + " does not have an entity mapping defined to the database.");
}
// get the expression tree from the parser
Expression expr = new OPathParser().ParseObjectQuery(type, query, true, out paramCount);
// wrap expression in an OrderBy node, if a sort order was specified
if (sort != null && sort.Length > 0)
{
OrderBy orderBy = new OPathSortParser(_maps).Parse(type, sort);
orderBy.Source = expr;
expr = orderBy;
}
#if DEBUG_PARSER
Debug.WriteLine("\n\nEXP: " + query);
Debug.WriteLine("\nRAW PARSER TREE:\n" + expr.ToXmlString());
#endif
// fix problems with the tree generated by the parser, normalizing the trees for equivalent expressions
FixTree(expr);
#if DEBUG_PARSER
Debug.WriteLine("\n\nEXP: " + query);
Debug.WriteLine("\nFINAL EXPRESSION TREE:\n" + expr.ToXmlString());
#endif
Validate(expr);
return(expr);
}
internal Expression Parse(Type type, string query, string sort, out int paramCount)
{
EntityMap map = _maps[type];
if( map == null )
{
throw new Exception("Type " + type + " does not have an entity mapping defined to the database.");
}
// get the expression tree from the parser
Expression expr = new OPathParser().ParseObjectQuery(type, query, true, out paramCount);
// wrap expression in an OrderBy node, if a sort order was specified
if( sort != null && sort.Length > 0 )
{
OrderBy orderBy = new OPathSortParser(_maps).Parse(type, sort);
orderBy.Source = expr;
expr = orderBy;
}
#if DEBUG_PARSER
Debug.WriteLine("\n\nEXP: " + query);
Debug.WriteLine("\nRAW PARSER TREE:\n" + expr.ToXmlString());
#endif
// fix problems with the tree generated by the parser, normalizing the trees for equivalent expressions
FixTree(expr);
#if DEBUG_PARSER
Debug.WriteLine("\n\nEXP: " + query);
Debug.WriteLine("\nFINAL EXPRESSION TREE:\n" + expr.ToXmlString());
#endif
Validate(expr);
return expr;
}