// Copyright (c) 1995, 1996 Regents of the University of California.
// All rights reserved.
//
// This software was developed by the Arcadia project
// at the University of California, Irvine.
//
// Redistribution and use in source and binary forms are permitted
// provided that the above copyright notice and this paragraph are
// duplicated in all such forms and that any documentation,
// advertising materials, and other materials related to such
// distribution and use acknowledge that the software was developed
// by the University of California, Irvine.  The name of the
// University may not be used to endorse or promote products derived
// from this software without specific prior written permission.
// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
// WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

// File: NetList.java
// Classes: NetList
// Original Author: ics125b spring 1996
// $Id: NetList.java,v 1.1.1.1 1997/02/27 20:52:45 chandra Exp $

package uci.graphedit;


import java.util.Vector;


/** A class that implements the concept of a connected graph. A
 * NetList is not any one object in the connected graph, it is the
 * overall graph. A NetList contains a list of nodes, and the nodes
 * refer to their ports and arcs. */

public class NetList extends NetPrimitive 
{

  /** The nodes in the NetList */
  private Vector _nodes;
  
  /** The name of this connected graph. */
  String _name;
  
  /** Construct a new NetList with no contained nodes. */
  public NetList() { _nodes = new Vector(); }

  /** Get and set methods */
  public void name(String n) { _name = n; }
  public String name() { return _name; }
  
  /** Add a node to this NetList. Needs-More-Work: should I send a
   * notification? This is called from the Editor when a
   * DiagramElement is added that is a Perspective.
   *
   * @see Editor#add */
  public void addNode(NetNode n) { _nodes.addElement(n); }
  
  
  /** Remove a node from this NetList. When a node is deleted a
   * notification is sent out. */
  public void removeNode(NetNode n) 
  {
    setChanged();
    Vector v = new Vector(2);
    v.addElement("remove");
    v.addElement(n);
    notifyObservers(v);
    _nodes.removeElement(n);
  }
  
  /** Remove all the nodes from this NetList. */
  public void removeAll() { _nodes.removeAllElements();}
  
  /** return the node list vector */
  public Vector nodes(){ return _nodes;}
} /* end class NetList */