org.apache.felix.mosgi.jmx.agent/src/main/java/org/apache/felix/mosgi/jmx/agent/mx4j/server/ModifiableClassLoaderRepository.java

/*
 * Copyright (C) MX4J.
 * All rights reserved.
 *
 * This software is distributed under the terms of the MX4J License version 1.0.
 * See the terms of the MX4J License in the documentation provided with this software.
 */
/*
 *   Copyright 2005 The Apache Software Foundation
 *
 *   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.apache.felix.mosgi.jmx.agent.mx4j.server;

import javax.management.loading.ClassLoaderRepository;

/**
 * Base class to extend to create custom ClassLoaderRepositories.
 * MX4J's MBeanServer can use a custom ClassLoaderRepository instead of the default one
 * by simply specifying a suitable system property, see {@link mx4j.MX4JSystemKeys}.
 * It must be a class, otherwise it opens up a security hole, as anyone can cast the MBeanServer's
 * ClassLoaderRepository down to this class and call addClassLoader or removeClassLoader
 * since, if this class is an interface, they must be public.
 *
 * @author <a href="mailto:biorn_steedom@users.sourceforge.net">Simone Bordet</a>
 * @version $Revision: 1.1.1.1 $
 */
public abstract class ModifiableClassLoaderRepository implements ClassLoaderRepository
{
   /**
    * Adds, if does not already exist, the specified ClassLoader to this repository.
    * @param cl The classloader to add
    * @see #removeClassLoader
    */
	protected abstract void addClassLoader(ClassLoader cl);

   /**
    * Removes, if exists, the specified ClassLoader from this repository.
    * @param cl The classloader to remove
    * @see #addClassLoader
    */
	protected abstract void removeClassLoader(ClassLoader cl);
}