/*
 * 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.Attribute;
import javax.management.AttributeNotFoundException;
import javax.management.InvalidAttributeValueException;
import javax.management.MBeanException;
import javax.management.ReflectionException;

/**
 * Invokes methods on standard MBeans. <p>
 * Actually two implementations are available: one that uses reflection and one that generates on-the-fly a customized
 * MBeanInvoker per each particular MBean and that is implemented with direct calls. <br>
 * The default is the direct call version, that uses the <a href="http://jakarta.apache.org/bcel">BCEL</a> to generate
 * the required bytecode on-the-fly. <br>
 * In the future may be the starting point for MBean interceptors.
 *
 * @author <a href="mailto:biorn_steedom@users.sourceforge.net">Simone Bordet</a>
 * @version $Revision: 1.1.1.1 $
 */
public interface MBeanInvoker
{
	/**
	 * Invokes the specified operation on the MBean instance
	 */
    public Object invoke(MBeanMetaData metadata, String method, String[] signature, Object[] args) throws MBeanException, ReflectionException;
	/**
	 * Returns the value of the specified attribute.
	 */
	public Object getAttribute(MBeanMetaData metadata, String attribute) throws MBeanException, AttributeNotFoundException, ReflectionException;
	/**
	 * Sets the value of the specified attribute.
	 */
	public void setAttribute(MBeanMetaData metadata, Attribute attribute) throws MBeanException, AttributeNotFoundException, InvalidAttributeValueException, ReflectionException;
}