| /* |
| * Copyright 1996-1997 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package java.beans; |
| |
| /** |
| * A VetoableChange event gets fired whenever a bean changes a "constrained" |
| * property. You can register a VetoableChangeListener with a source bean |
| * so as to be notified of any constrained property updates. |
| */ |
| public interface VetoableChangeListener extends java.util.EventListener { |
| /** |
| * This method gets called when a constrained property is changed. |
| * |
| * @param evt a <code>PropertyChangeEvent</code> object describing the |
| * event source and the property that has changed. |
| * @exception PropertyVetoException if the recipient wishes the property |
| * change to be rolled back. |
| */ |
| void vetoableChange(PropertyChangeEvent evt) |
| throws PropertyVetoException; |
| } |