/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* Copyright 2004-2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* MonitoringLevelListener.java
*
* Created on August 13, 2003, 2:15 PM
*/
package com.sun.enterprise.admin.monitor.registry;
/**
* Implementation of this interface enables notifications to
* be received for change in monitoring level from a prior
* level to a new one. Monitoring levels are defined by the
* constants class MonitoringLevel and are currently defined as
* OFF, LOW and HIGH.
* @author <href=mailto:shreedhar.ganapathy@sun.com>Shreedhar Ganapathy
*/
public interface MonitoringLevelListener {
/**
* Sets the monitoring level to a new level. Values are defined by
* MonitoringLevel.OFF, MonitoringLevel.LOW, and MonitoringLevel.High
* @param level corresponding to MonitoringLevel OFF, LOW or HIGH
* @deprecated
*/
public void setLevel(MonitoringLevel level);
/**
* Method to convey the change in monitoring level. It is a usual practice that
* various components may have <em> single instance of listener </em> to listen
* to the changes in monitoring-level for various registered Stats objects. This
* method gives a context for such components to be returned when it is
* called.
* @deprecated
* @param from the MonitoringLevel before the change
* @param to the MonitoringLevel after the change
* @param handback the Stats object that was passed to the registry during registration. It
* is guaranteed that it will be unchanged by monitoring framework.
*/
public void changeLevel(MonitoringLevel from, MonitoringLevel to,
javax.management.j2ee.statistics.Stats handback);
/**
* Method to convey the change in monitoring level. The configuration
* of monitoring pertains to certain components like ejb-container, web-container,
* orb, transaction-service, connection-pools, thread-pools etc. The third
* parameter loosely corresponds to the configuration in domain.xml as follows:
* <ul>
* <li> connector-connection-pool : MonitoredObjectType#CONNECTOR_CONN_POOL </li>
* <li> ejb-container : MonitoredObjectType#EJB </li>
* <li> http-service, http-listeners etc. : MonitoredObjectType#HTTP_SERVICE </li>
* <li> jdbc-connection-pool : MonitoredObjectType#JDBC_CONN_POOL </li>
* <li> orb : MonitoredObjectType#ORB </li>
* <li> thread-pool : MonitoredObjectType#THREAD_POOL </li>
* <li> transaction-service : MonitoredObjectType#TRANSACTION_SERVICE </li>
* <li> web-container : MonitoredObjectType#WEB_COMPONENT </li>
* <li> </li>
* </ul>
* The core components are expected to follow the above.
* When the level changes through administrative interfaces, the notification
* is sent to the registered listeners for corresponding types and thus the
* dynamic reconfiguration is done.
* @param from the MonitoringLevel before the change
* @param to the MonitoringLevel after the change
* @param type the MonitoredObjectType that had the level changed
*/
public void changeLevel(MonitoringLevel from, MonitoringLevel to,
MonitoredObjectType type);
} |