/**
  * Constructor 2
  *
  * @param graph
  */
 public Graph(Graph graph)
 {
     vertexNum = graph.vertexNum;
     edgeNum   = graph.edgeNum;
     vertexList.AddAll(graph.vertexList);
     idVertexIndex.AddAll(graph.idVertexIndex);
     faninVerticesIndex.AddAll(graph.faninVerticesIndex);
     fanoutVerticesIndex.AddAll(graph.fanoutVerticesIndex);
     vertexPairWeightIndex.AddAll(graph.vertexPairWeightIndex);
 }