| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.deploy.graph; |
| |
| /** |
| * Basic Graph Edge |
| */ |
| public final class Edge |
| { |
| private Node _from; |
| private Node _to; |
| |
| public Edge(Node from, Node to) |
| { |
| if (from==null || to==null || from==to) |
| throw new IllegalArgumentException("from "+from+" to "+to); |
| _from = from; |
| _to = to; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return _from.hashCode() ^ _to.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) |
| { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| Edge other = (Edge)obj; |
| if (_from == null) |
| { |
| if (other._from != null) |
| return false; |
| } |
| else if (!_from.equals(other._from)) |
| return false; |
| if (_to == null) |
| { |
| if (other._to != null) |
| return false; |
| } |
| else if (!_to.equals(other._to)) |
| return false; |
| return true; |
| } |
| |
| public Node getFrom() |
| { |
| return _from; |
| } |
| |
| public Node getTo() |
| { |
| return _to; |
| } |
| |
| @Override |
| public String toString() |
| { |
| return _from+"->"+_to; |
| } |
| } |