How to use

getNode

method

in

org.antlr.misc.Graph

 public boolean isPath(Graph graph, Node start, Node target) {
  for (Node node : graph.getNode()) {
    if (node != null) {
      node.state = State.Unvisited;
    }
  }

  dfs(start);

  return target.state == State.Visited;
}

public void addEdge(T a, T b) {
  //System.out.println("add edge "+a+" to "+b);
  Node<T> a_node = getNode(a);
  Node<T> b_node = getNode(b);
  a_node.addEdge(b_node);
}

public void addEdge(Object a, Object b) {
  //System.out.println("add edge "+a+" to "+b);
  Node a_node = getNode(a);
  Node b_node = getNode(b);
  a_node.addEdge(b_node);
}

public void addEdge(T a, T b) {
  //System.out.println("add edge "+a+" to "+b);
  Node<T> a_node = getNode(a);
  Node<T> b_node = getNode(b);
  a_node.addEdge(b_node);
}

public void addEdge(Object a, Object b) {
  //System.out.println("add edge "+a+" to "+b);
  Node a_node = getNode(a);
  Node b_node = getNode(b);
  a_node.addEdge(b_node);
}