Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
       3             :  * Copyright Contributors to the OpenSDN project
       4             :  */
       5             : 
       6             : #ifndef __DB_DB_GRAPH_EDGE_H__
       7             : #define __DB_DB_GRAPH_EDGE_H__
       8             : 
       9             : #include "base/util.h"
      10             : 
      11             : #include "db/db_entry.h"
      12             : #include "db/db_graph_base.h"
      13             : 
      14             : class DBGraph;
      15             : class DBGraphVertex;
      16             : 
      17             : class DBGraphEdge : public DBEntry {
      18             : public:
      19             :     typedef DBGraphBase::vertex_descriptor Vertex;
      20             :     typedef DBGraphBase::edge_descriptor Edge;
      21             : 
      22             :     DBGraphEdge();
      23             : 
      24             :     void SetEdge(Edge edge);
      25             : 
      26      161111 :     Edge edge_id() const {
      27      161111 :         assert(!IsDeleted());
      28             :         // Don't access the edge id after deleting from graph
      29      161111 :         return edge_id_;
      30             :     }
      31             : 
      32             :     DBGraphVertex *source(DBGraph *graph);
      33             :     const DBGraphVertex *source(DBGraph *graph) const;
      34             : 
      35             :     DBGraphVertex *target(DBGraph *graph);
      36             :     const DBGraphVertex *target(DBGraph *graph) const;
      37             : 
      38             :     virtual const std::string &name() const = 0;
      39             : private:
      40             :     Edge edge_id_;
      41             : 
      42             :     DISALLOW_COPY_AND_ASSIGN(DBGraphEdge);
      43             : };
      44             : 
      45             : #endif