/*

 * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved.

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

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @author    IBM Corp.

 *

 * Copyright IBM Corp. 1999-2000.  All rights reserved.

 */

package javax.management.modelmbean;

import javax.management.Attribute;

import javax.management.AttributeChangeNotification;

import javax.management.ListenerNotFoundException;

import javax.management.MBeanException;

import javax.management.Notification;

import javax.management.NotificationBroadcaster;

import javax.management.NotificationListener;

import javax.management.RuntimeOperationsException;

/**

 * This interface must be implemented by the ModelMBeans. An implementation of this interface

 * must be shipped with every JMX Agent.

 * <P>

 * Java resources wishing to be manageable instantiate the ModelMBean using the MBeanServer's

 * createMBean method.  The resource then sets the ModelMBeanInfo (with Descriptors) for the ModelMBean

 * instance. The attributes and operations exposed via the ModelMBeanInfo for the ModelMBean are accessible

 * from MBeans, connectors/adaptors like other MBeans. Through the ModelMBeanInfo Descriptors, values and methods in

 * the managed application can be defined and mapped to attributes and operations of the ModelMBean.

 * This mapping can be defined during development in an XML formatted file or dynamically and

 * programmatically at runtime.

 * <P>

 * Every ModelMBean which is instantiated in the MBeanServer becomes manageable:

 * its attributes and operations

 * become remotely accessible through the connectors/adaptors connected to that MBeanServer.

 * A Java object cannot be registered in the MBeanServer unless it is a JMX compliant MBean.

 * By instantiating a ModelMBean, resources are guaranteed that the MBean is valid.

 * <P>

 * MBeanException and RuntimeOperationsException must be thrown on every public method.  This allows

 * for wrapping exceptions from distributed communications (RMI, EJB, etc.).  These exceptions do

 * not have to be thrown by the implementation except in the scenarios described in the specification

 * and javadoc.

 *

 * @since 1.5

 */

public interface ModelMBeanNotificationBroadcaster extends NotificationBroadcaster

{

        /**

         * Sends a Notification which is passed in to the registered

         * Notification listeners on the ModelMBean as a

         * jmx.modelmbean.generic notification.

         *

         * @param ntfyObj The notification which is to be passed to

         * the 'handleNotification' method of the listener object.

         *

         * @exception MBeanException Wraps a distributed communication Exception.

         * @exception RuntimeOperationsException Wraps an IllegalArgumentException:

         *       The Notification object passed in parameter is null.

         *

         */

        public void sendNotification(Notification ntfyObj)

        throws MBeanException, RuntimeOperationsException;

        /**

         * Sends a Notification which contains the text string that is passed in

         * to the registered Notification listeners on the ModelMBean.

         *

         * @param ntfyText The text which is to be passed in the Notification to the 'handleNotification'

         * method of the listener object.

         * the constructed Notification will be:

         *   type        "jmx.modelmbean.generic"

         *   source      this ModelMBean instance

         *   sequence    1

         *

         *

         * @exception MBeanException Wraps a distributed communication Exception.

         * @exception RuntimeOperationsException Wraps an IllegalArgumentException:

         *       The Notification text string passed in parameter is null.

         *

         */

        public void sendNotification(String ntfyText)

        throws MBeanException, RuntimeOperationsException;

        /**

         * Sends an attributeChangeNotification which is passed in to

         * the registered attributeChangeNotification listeners on the

         * ModelMBean.

         *

         * @param notification The notification which is to be passed

         * to the 'handleNotification' method of the listener object.

         *

         * @exception MBeanException Wraps a distributed communication Exception.

         * @exception RuntimeOperationsException Wraps an IllegalArgumentException: The AttributeChangeNotification object passed in parameter is null.

         *

         */

        public void sendAttributeChangeNotification(AttributeChangeNotification notification)

        throws MBeanException, RuntimeOperationsException;

        /**

         * Sends an attributeChangeNotification which contains the old value and new value for the

         * attribute to the registered AttributeChangeNotification listeners on the ModelMBean.

         * <P>

         * @param oldValue The original value for the Attribute

         * @param newValue The current value for the Attribute

         * <PRE>

         * The constructed attributeChangeNotification will be:

         *   type        "jmx.attribute.change"

         *   source      this ModelMBean instance

         *   sequence    1

         *   attributeName oldValue.getName()

         *   attributeType oldValue's class

         *   attributeOldValue oldValue.getValue()

         *   attributeNewValue newValue.getValue()

         * </PRE>

         *

         * @exception MBeanException Wraps a distributed communication Exception.

         * @exception RuntimeOperationsException Wraps an IllegalArgumentException: An Attribute object passed in parameter is null

         * or the names of the two Attribute objects in parameter are not the same.

         */

        public void sendAttributeChangeNotification(Attribute oldValue, Attribute newValue)

        throws MBeanException, RuntimeOperationsException;

        /**

         * Registers an object which implements the NotificationListener interface as a listener.  This

         * object's 'handleNotification()' method will be invoked when any attributeChangeNotification is issued through

         * or by the ModelMBean.  This does not include other Notifications.  They must be registered

         * for independently. An AttributeChangeNotification will be generated for this attributeName.

         *

         * @param listener The listener object which will handles notifications emitted by the registered MBean.

         * @param attributeName The name of the ModelMBean attribute for which to receive change notifications.

         *      If null, then all attribute changes will cause an attributeChangeNotification to be issued.

         * @param handback The context to be sent to the listener with the notification when a notification is emitted.

         *

         * @exception IllegalArgumentException The listener cannot be null.

         * @exception MBeanException Wraps a distributed communication Exception.

         * @exception RuntimeOperationsException Wraps an IllegalArgumentException The attribute name passed in parameter does not exist.

         *

         * @see #removeAttributeChangeNotificationListener

         */

        public void addAttributeChangeNotificationListener(NotificationListener listener,

                                                           String attributeName,

                                                           Object handback)

        throws MBeanException, RuntimeOperationsException, IllegalArgumentException;

        /**

         * Removes a listener for attributeChangeNotifications from the RequiredModelMBean.

         *

         * @param listener The listener name which was handling notifications emitted by the registered MBean.

         * This method will remove all information related to this listener.

         * @param attributeName The attribute for which the listener no longer wants to receive attributeChangeNotifications.

         * If null the listener will be removed for all attributeChangeNotifications.

         *

         * @exception ListenerNotFoundException The listener is not registered in the MBean or is null.

         * @exception MBeanException Wraps a distributed communication Exception.

         * @exception RuntimeOperationsException Wraps an IllegalArgumentException If the inAttributeName parameter does not

         * correspond to an attribute name.

         *

         * @see #addAttributeChangeNotificationListener

         */

        public void removeAttributeChangeNotificationListener(NotificationListener listener,

                                                              String attributeName)

        throws MBeanException, RuntimeOperationsException, ListenerNotFoundException;

}