| /* |
| * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| package com.sun.hotspot.igv.hierarchicallayout; |
| |
| /** |
| * |
| * @author Thomas Wuerthinger |
| */ |
| public class Edge<N, E> { |
| |
| private E data; |
| private Node<N, E> source; |
| private Node<N, E> dest; |
| |
| protected Edge(Graph<N, E> graph, Node<N, E> source, Node<N, E> dest, E data) { |
| setData(data); |
| this.source = source; |
| this.dest = dest; |
| assert source != null; |
| assert dest != null; |
| assert source.getGraph() == dest.getGraph(); |
| assert source.getGraph() != null; |
| assert dest.getGraph() != null; |
| } |
| |
| public Node<N, E> getSource() { |
| return source; |
| } |
| |
| public Node<N, E> getDest() { |
| return dest; |
| } |
| |
| public E getData() { |
| return data; |
| } |
| |
| public void setData(E e) { |
| data = e; |
| } |
| |
| public void remove() { |
| source.getGraph().removeEdge(this, null); |
| } |
| |
| public boolean isSelfLoop() { |
| return source == dest; |
| } |
| |
| public void reverse() { |
| |
| // Remove from current source / dest |
| source.removeOutEdge(this); |
| dest.removeInEdge(this); |
| |
| Node<N, E> tmp = source; |
| source = dest; |
| dest = tmp; |
| |
| // Add to new source / dest |
| source.addOutEdge(this); |
| dest.addInEdge(this); |
| } |
| |
| public String toString() { |
| return "Edge (" + source + " -- " + dest + "): " + data; |
| } |
| } |