Mercurial > hg > graal-compiler
annotate visualizer/HierarchicalLayout/src/com/sun/hotspot/igv/hierarchicallayout/Edge.java @ 9919:af909f4b80a9
options are grouped per top level class/interface when accessed via the service mechanism
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 06 Jun 2013 23:16:45 +0200 |
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1 /* |
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2 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 package com.sun.hotspot.igv.hierarchicallayout; |
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25 |
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26 /** |
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27 * |
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28 * @author Thomas Wuerthinger |
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29 */ |
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30 public class Edge<N, E> { |
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31 |
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32 private E data; |
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33 private Node<N, E> source; |
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34 private Node<N, E> dest; |
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35 |
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36 protected Edge(Graph<N, E> graph, Node<N, E> source, Node<N, E> dest, E data) { |
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37 setData(data); |
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38 this.source = source; |
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39 this.dest = dest; |
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40 assert source != null; |
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41 assert dest != null; |
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42 assert source.getGraph() == dest.getGraph(); |
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43 assert source.getGraph() != null; |
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44 assert dest.getGraph() != null; |
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45 } |
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46 |
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47 public Node<N, E> getSource() { |
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48 return source; |
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49 } |
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50 |
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51 public Node<N, E> getDest() { |
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52 return dest; |
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53 } |
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54 |
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55 public E getData() { |
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56 return data; |
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57 } |
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58 |
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59 public void setData(E e) { |
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60 data = e; |
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61 } |
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62 |
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63 public void remove() { |
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64 source.getGraph().removeEdge(this, null); |
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65 } |
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66 |
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67 public boolean isSelfLoop() { |
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68 return source == dest; |
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69 } |
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70 |
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71 public void reverse() { |
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72 |
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73 // Remove from current source / dest |
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74 source.removeOutEdge(this); |
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75 dest.removeInEdge(this); |
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76 |
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77 Node<N, E> tmp = source; |
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78 source = dest; |
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79 dest = tmp; |
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80 |
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81 // Add to new source / dest |
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82 source.addOutEdge(this); |
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83 dest.addInEdge(this); |
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84 } |
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85 |
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86 @Override |
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87 public String toString() { |
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88 return "Edge (" + source + " -- " + dest + "): " + data; |
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89 } |
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90 } |