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ObservableBean.java
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ObservableBean.java
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/*
* Copyright (c) 2023 Contributors to the Eclipse Foundation
* Copyright (c) 2007, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.jvnet.hk2.config;
/**
* Implementation of a @Configured object can optionally fire configuration change
* events when it's mutated.
*
* @author Jerome Dochez
*/
public interface ObservableBean {
/**
* Add a new listener to configuration changes.
*
* @param listener new listener
*/
public void addListener(ConfigListener listener);
/**
* Remove a listener
*
* @param listener to remove
* @return true if listener removal was successful.
*/
public boolean removeListener(ConfigListener listener);
}