| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-1997 Sun Microsystems, Inc. All Rights Reserved. |
| 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package java.beans; |
| 27 | |
| 28 | /** |
| 29 | * A VetoableChange event gets fired whenever a bean changes a "constrained" |
| 30 | * property. You can register a VetoableChangeListener with a source bean |
| 31 | * so as to be notified of any constrained property updates. |
| 32 | */ |
| 33 | public interface VetoableChangeListener extends java.util.EventListener { |
| 34 | /** |
| 35 | * This method gets called when a constrained property is changed. |
| 36 | * |
| 37 | * @param evt a <code>PropertyChangeEvent</code> object describing the |
| 38 | * event source and the property that has changed. |
| 39 | * @exception PropertyVetoException if the recipient wishes the property |
| 40 | * change to be rolled back. |
| 41 | */ |
| 42 | void vetoableChange(PropertyChangeEvent evt) |
| 43 | throws PropertyVetoException; |
| 44 | } |