Jafar: modules/spafdb/include/spafdb/ProximityStrategy.hpp Source File

00001 /* $Id$ */
00002 
00003 #ifndef _SPAFDB_PROXIMITY_STRATEGY_HPP_
00004 #define _SPAFDB_PROXIMITY_STRATEGY_HPP_
00005 
00006 #include <vector>
00007 #include <list>
00008 
00009 namespace jafar {
00010   namespace spafgraph {
00011     class Node;
00012     class EdgeProximity;
00013   }
00014   namespace spafdb {
00015     class SpafDB;
00016     class SelectQueryProximity;
00023     class ProximityStrategy {
00024       public:
00025         ProximityStrategy();
00026         virtual ~ProximityStrategy();
00031         virtual std::vector<const spafgraph::EdgeProximity*> createProximitiesEdges( const SpafDB* _db, spafgraph::Node* _node ) const = 0;
00032         virtual std::vector<const spafgraph::EdgeProximity*> createProximitiesEdges( const std::list<spafgraph::Node*>& _nodes, spafgraph::Node* _node ) const = 0;
00033     };
00039     class GroupProximityStrategy : public ProximityStrategy {
00040       public:
00041         virtual ~GroupProximityStrategy();
00042         virtual std::vector<const spafgraph::EdgeProximity*> createProximitiesEdges( const SpafDB* _db, spafgraph::Node* node ) const;
00043         virtual std::vector<const spafgraph::EdgeProximity*> createProximitiesEdges( const std::list<spafgraph::Node*>& _nodes, spafgraph::Node* _node ) const;
00044     };
00050     class DistanceProximityStrategy : public ProximityStrategy {
00051       public:
00052         DistanceProximityStrategy(double distance, int max);
00053         virtual ~DistanceProximityStrategy();
00054         virtual std::vector<const spafgraph::EdgeProximity*> createProximitiesEdges( const SpafDB* _db, spafgraph::Node* node ) const;
00055         virtual std::vector<const spafgraph::EdgeProximity*> createProximitiesEdges( const std::list<spafgraph::Node*>& _nodes, spafgraph::Node* _node ) const;
00056       private:
00057         double m_distance;
00058         int m_max;
00059         SelectQueryProximity* m_query;
00060     };
00061   }
00062 }
00063 
00064 #endif