| typedef map <A, Edge<A> > adjacency | adjacency | 
| typedef ref_ptr<Node<A> > NodeRef | NodeRef | 
| Node (A a) | Node | 
| A  nodename () | nodename | 
Returns: nodename
| bool  add_edge (NodeRef dst, int weight) | add_edge | 
Add a new edge.
Returns: true on success. false if edge already exists.
| bool  update_edge_weight (NodeRef dst, int weight) | update_edge_weight | 
Update edge weight.
Returns: true on success, false if the edge doesn't exist.
| bool  get_edge_weight (NodeRef dst, int& weight) | get_edge_weight | 
Get edge weight.
Returns: true on success, false if the edge doesn't exist.
| bool  remove_edge (NodeRef dst) | remove_edge | 
| void  drop_adjacencies () | drop_adjacencies | 
Drop all adjacencies. Used to revive invalid nodes.
| void  garbage_collect () | garbage_collect | 
Remove all edges that point at invalid nodes.
| void  set_valid (bool p) | set_valid | 
| bool  valid () | valid | 
Returns: true if this node is not marked for deletion.
| void  set_tentative (bool p) | set_tentative | 
| bool  tentative () | tentative | 
| void  invalidate_weights () | invalidate_weights | 
| bool  valid_weight () | valid_weight | 
| void  set_adjacent_weights (NodeRef me, int delta_weight,
			      PriorityQueue<A>& tentative) | set_adjacent_weights | 
Set weights. Visit all neighbours that are tentative and add this weight.
Parameters:
| delta_weight | to add to this node. | 
| tentative | add all updated adjacent nodes to the tentative set. | 
| void  set_local_weight (int weight) | set_local_weight | 
Set local weight. Set the weight on this node if its tentative and less than the previous value.
| int  get_local_weight () | get_local_weight | 
get local weight.
| void  set_first_hop (NodeRef n) | set_first_hop | 
| NodeRef  get_first_hop () | get_first_hop | 
| void  set_last_hop (NodeRef n) | set_last_hop | 
| NodeRef  get_last_hop () | get_last_hop | 
| bool  delta (RouteCmd<A>& rcmd) | delta | 
Return the difference between this computation and the last.
Parameters:
| rcmd | the new route to this node if it has changed. | 
Returns: true if the node has changed.
| void  clear () | clear | 
Clear all the references to other nodes as well as possible references to ourselves.
| string  pp () | pp | 
[const]
Pretty print this node with its adjacencies
| string  str () | str | 
[const]
Returns: C++ string with the human-readable ASCII representation of the node.