Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ui/table/TableModelComparator.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
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 } |