| /* |
| * Copyright (c) 2008, Oracle and/or its affiliates. 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. |
| * |
| * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6630275 |
| * @summary Tests VetoableChangeSupport specification |
| * @author Sergey Malenkov |
| */ |
| |
| import java.beans.PropertyChangeEvent; |
| import java.beans.PropertyVetoException; |
| import java.beans.VetoableChangeListener; |
| import java.beans.VetoableChangeSupport; |
| |
| public class Test6630275 { |
| private static final String PROPERTY = "property"; // NON-NLS: predefined property name |
| |
| public static void main(String[] args) { |
| CheckListener first = new CheckListener(false); |
| CheckListener second = new CheckListener(true); |
| CheckListener third = new CheckListener(false); |
| |
| VetoableChangeSupport vcs = new VetoableChangeSupport(Test6630275.class); |
| vcs.addVetoableChangeListener(first); |
| vcs.addVetoableChangeListener(PROPERTY, first); |
| vcs.addVetoableChangeListener(PROPERTY, second); |
| vcs.addVetoableChangeListener(PROPERTY, third); |
| try { |
| vcs.fireVetoableChange(PROPERTY, true, false); |
| } catch (PropertyVetoException exception) { |
| first.validate(); |
| second.validate(); |
| third.validate(); |
| return; // expected exception |
| } |
| throw new Error("exception should be thrown"); |
| } |
| |
| private static class CheckListener implements VetoableChangeListener { |
| private final boolean veto; |
| private boolean odd; // even/odd check for notification |
| |
| private CheckListener(boolean veto) { |
| this.veto = veto; |
| } |
| |
| private void validate() { |
| if (this.veto != this.odd) |
| throw new Error(this.odd |
| ? "undo event expected" |
| : "unexpected undo event"); |
| } |
| |
| public void vetoableChange(PropertyChangeEvent event) throws PropertyVetoException { |
| this.odd = !this.odd; |
| if (this.veto) |
| throw new PropertyVetoException("disable all changes", event); |
| } |
| } |
| } |