//-*-C++-*-

import jdsl.core.ref.SILGraph;
import jdsl.core.api.Vertex;
import jdsl.core.api.Edge;
import jdsl.core.api.Position;
import java.util.Enumeration;

public class MyGraph {
 
  private SILGraph G;

  public MyGraph(){G=new SILGraph();}

  public Vertex insertVertex(String name, int xCoord, int yCoord){
    return G.insertVertex(new VertexInfo(name,xCoord, yCoord));
  }

  public Edge insertEdge(Vertex v, Vertex w){
    return G.insertEdge(v,w,new EdgeInfo(v,w));
  }

  public Enumeration vertices(){return G.vertices();}

  public Enumeration edges(){return G.edges();}

}