/**
 * Node.java
 *
 *
 * Created: Fri Mar 31 09:16:17 2000
 *
 * @author Hans Kyndesgaard
 * @version 1
 */

public class Node  {
    Sequence out;
    Sequence in;
    String name;

    public Node() {
	out = new Sequence();
	in = new Sequence();
    }

    /** @param name You can give each node a name. This name can be very handy when debugging. O(1).
     */
    public Node(String name) {
	out = new Sequence();
	in = new Sequence();
	this.name = name;
    }

    /** @return an enumeration of all the edges going out of <code>this</code> node. O(1).
     */
    public java.util.Enumeration outEdges(){
	return out.elements();
    }
    
    /** @return an enumeration of all the edges going in to <code>this</code> node. O(1).
     */
    public java.util.Enumeration inEdges(){
	return in.elements();
    }

    /** @return the number of edges going into <code>this</code> node. O(1).
     */
    public int inDegree(){
	return in.size();
    }
    
    /** @return the number of edges going out of <code>this</code> node. O(1)
     */
    public int outDegree(){
	return out.size();
    }

    /** The string representation is just the given name. O(1)
     */
    public String toString(){
	return name;
    }
    
} // Node