00001 #ifndef DB_PLANNER_FEATURES_EXTRACTOR_H
00002 #define DB_PLANNER_FEATURES_EXTRACTOR_H
00003
00004 #include "model.h"
00005
00006 namespace db_planner {
00007
00008 template <class Features>
00009 class FeaturesExtractor {
00010 public:
00011 virtual bool Extract(const Model& model, Features* features) const {
00012 return false;
00013 }
00014 };
00015
00016
00017 }
00018
00019
00020 #endif // DB_PLANNER_FEATURES_EXTRACTOR_H