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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

 *

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 */

/*

 * @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);

        }

    }

}