first stub of new API

relational/query.py

@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Relational
+# Copyright (C) 2008  Salvo "LtWorf" Tomaselli
+# 
+# Relational is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 
+# author Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
+#
+# This module provides a classes to represent queries
+
+import parser
+
+class TypeException(Exception):
+    pass
+
+class Query(object):
+    def __init__(self,query):
+        
+        if not isinstance(query,unicode):
+            raise TypeException('Expected unicode')
+        
+        self.query = query
+        self.tree = parser.tree(query)
+        #TODO self.query_code = parser
+        
+        self.optimized = None
+        self.optimized_query = None
+        self.optimized_code = None