Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ui/table/TableModelComparator.java @ 8031:927a311d00f9
8007320: NPG: move method annotations
Summary: allocate method annotations and attach to ConstMethod if present
Reviewed-by: dcubed, jiangli, sspitsyn, iklam
author | coleenp |
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date | Mon, 11 Feb 2013 14:06:22 -0500 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.ui.table; | |
26 | |
27 import java.util.*; | |
28 | |
29 import javax.swing.table.TableModel; | |
30 import javax.swing.event.TableModelEvent; | |
31 | |
32 /** | |
33 * A comparator which compares rows in a table model | |
34 */ | |
35 public abstract class TableModelComparator implements Comparator { | |
36 | |
37 private boolean ascending; | |
38 protected TableModel model; | |
39 | |
40 private int[] columns; | |
41 | |
42 public TableModelComparator(TableModel model) { | |
43 this.model = model; | |
44 | |
45 // XXX - Should actually listen for column changes and resize | |
46 columns = new int[model.getColumnCount()]; | |
47 columns[0] = -1; | |
48 } | |
49 | |
50 /** | |
51 * Add the column to the sort criteria | |
52 */ | |
53 public void addColumn(int column) { | |
54 // Shift columns in the array | |
55 int[] tempArray = new int[model.getColumnCount()]; | |
56 System.arraycopy(columns, 1, tempArray, 0, columns.length - 1); | |
57 | |
58 columns = tempArray; | |
59 columns[0] = column; | |
60 } | |
61 | |
62 /** | |
63 * Get the last column that was sorted | |
64 */ | |
65 public int getColumn() { | |
66 return columns[0]; | |
67 } | |
68 | |
69 public void setAscending(boolean ascending) { | |
70 this.ascending = ascending; | |
71 } | |
72 | |
73 public boolean isAscending() { | |
74 return ascending; | |
75 } | |
76 | |
77 /** | |
78 * Implementation of the comparator method. A comparison is | |
79 * made for rows. | |
80 */ | |
81 public int compare(Object row1, Object row2) { | |
82 for (int i = 0; i < columns.length; i++) { | |
83 | |
84 Object o1 = getValueForColumn(row1, columns[i]); | |
85 Object o2 = getValueForColumn(row2, columns[i]); | |
86 | |
87 // If both values are null, return 0. | |
88 if (o1 == null && o2 == null) { | |
89 return 0; | |
90 } else if (o1 == null) { // Define null less than everything. | |
91 return -1; | |
92 } else if (o2 == null) { | |
93 return 1; | |
94 } | |
95 | |
96 int result = 0; | |
97 | |
98 if (o1 instanceof Comparable) { | |
99 Comparable c1 = (Comparable)o1; | |
100 Comparable c2 = (Comparable)o2; | |
101 | |
102 result = c1.compareTo(c2); | |
103 } | |
104 | |
105 // XXX Should have some sort of provision for determininte | |
106 // if there is another way of comparing the objects. | |
107 // Perhaps we should add the requirement that all table | |
108 // values be Compabable. | |
109 | |
110 if (result != 0) { | |
111 return ascending ? result : -result; | |
112 } | |
113 } | |
114 return 0; | |
115 } | |
116 | |
117 /** | |
118 * Returns the value for the comparing object for the | |
119 * column. | |
120 * | |
121 * @param obj Row object that was passed into Comparator. | |
122 * @param column the column to retrieve | |
123 */ | |
124 public abstract Object getValueForColumn(Object obj, int column); | |
125 | |
126 } |