java/server/src/org/openqa/jetty/util/Observed.java

// ========================================================================
// $Id: Observed.java,v 1.2 2004/05/09 20:32:49 gregwilkins Exp $
// Copyright 1996-2004 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at 
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========================================================================

package org.openqa.jetty.util;

import java.util.Observable;

/* ======================================================================== */
/** Helpful extension to Observable.
 * NotifyObservers will set a changed first.
 */
public class Observed  extends Observable
{
    public void notifyObservers(Object arg)
    {
        setChanged();
        super.notifyObservers(arg);
    }

    public void notifyObservers()
    {
        setChanged();
        super.notifyObservers(null);
    }
}