--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/com/sun/jmx/interceptor/MBeanServerInterceptor.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,702 @@
+/*
+ * Copyright 2002-2005 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package com.sun.jmx.interceptor;
+
+import java.util.Set;
+
+// RI import
+import javax.management.DynamicMBean;
+import javax.management.AttributeNotFoundException;
+import javax.management.MBeanException;
+import javax.management.ReflectionException;
+import javax.management.MBeanAttributeInfo;
+import javax.management.MBeanInfo;
+import javax.management.QueryExp;
+import javax.management.NotificationListener;
+import javax.management.NotificationFilter;
+import javax.management.ListenerNotFoundException;
+import javax.management.IntrospectionException;
+import javax.management.OperationsException;
+import javax.management.MBeanNotificationInfo;
+import javax.management.JMRuntimeException;
+import javax.management.InstanceNotFoundException;
+import javax.management.NotCompliantMBeanException;
+import javax.management.MBeanRegistrationException;
+import javax.management.InstanceAlreadyExistsException;
+import javax.management.InvalidAttributeValueException;
+import javax.management.ObjectName;
+import javax.management.ObjectInstance;
+import javax.management.Attribute;
+import javax.management.AttributeList;
+import javax.management.RuntimeOperationsException;
+import javax.management.MBeanServerConnection;
+import javax.management.MBeanServerDelegate;
+import javax.management.loading.ClassLoaderRepository;
+
+/**
+ * <p>This interface specifies the behavior to be implemented by an
+ * MBean Server Interceptor. An MBean Server Interceptor has
+ * essentially the same interface as an MBean Server. An MBean Server
+ * forwards received requests to its default interceptor, which may
+ * handle them itself or forward them to other interceptors. The
+ * default interceptor may be changed via the {@link
+ * com.sun.jmx.mbeanserver.SunJmxMBeanServer#setMBeanServerInterceptor}
+ * method.</p>
+ *
+ * <p>The initial default interceptor provides the standard MBean
+ * Server behavior. It handles a collection of named MBeans, each
+ * represented by a Java object. A replacement default interceptor
+ * may build on this behavior, for instance by adding logging or
+ * security checks, before forwarding requests to the initial default
+ * interceptor. Or, it may route each request to one of a number of
+ * sub-interceptors, for instance based on the {@link ObjectName} in
+ * the request.</p>
+ *
+ * <p>An interceptor, default or not, need not implement MBeans as
+ * Java objects, in the way that the initial default interceptor does.
+ * It may instead implement <em>virtual MBeans</em>, which do not
+ * exist as Java objects when they are not in use. For example, these
+ * MBeans could be implemented by forwarding requests to a database,
+ * or to a remote MBean server, or by performing system calls to query
+ * or modify system resources.</p>
+ *
+ * @since 1.5
+ */
+public interface MBeanServerInterceptor extends MBeanServerConnection {
+ /**
+ * Instantiates and registers an MBean in the MBean server. The
+ * MBean server will use its {@link
+ * javax.management.loading.ClassLoaderRepository Default Loader
+ * Repository} to load the class of the MBean. An object name is
+ * associated to the MBean. If the object name given is null, the
+ * MBean must provide its own name by implementing the {@link
+ * javax.management.MBeanRegistration MBeanRegistration} interface
+ * and returning the name from the {@link
+ * javax.management.MBeanRegistration#preRegister preRegister} method.
+ *
+ * @param className The class name of the MBean to be instantiated.
+ * @param name The object name of the MBean. May be null.
+ * @param params An array containing the parameters of the
+ * constructor to be invoked.
+ * @param signature An array containing the signature of the
+ * constructor to be invoked.
+ *
+ * @return An <CODE>ObjectInstance</CODE>, containing the
+ * <CODE>ObjectName</CODE> and the Java class name of the newly
+ * instantiated MBean.
+ *
+ * @exception ReflectionException Wraps a
+ * <CODE>java.lang.ClassNotFoundException</CODE> or a
+ * <CODE>java.lang.Exception</CODE> that occurred when trying to
+ * invoke the MBean's constructor.
+ * @exception InstanceAlreadyExistsException The MBean is already
+ * under the control of the MBean server.
+ * @exception MBeanRegistrationException The
+ * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
+ * interface) method of the MBean has thrown an exception. The
+ * MBean will not be registered.
+ * @exception MBeanException The constructor of the MBean has
+ * thrown an exception
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The className
+ * passed in parameter is null, the <CODE>ObjectName</CODE> passed
+ * in parameter contains a pattern or no <CODE>ObjectName</CODE>
+ * is specified for the MBean.
+ */
+ public ObjectInstance createMBean(String className, ObjectName name,
+ Object params[], String signature[])
+ throws ReflectionException, InstanceAlreadyExistsException,
+ MBeanRegistrationException, MBeanException,
+ NotCompliantMBeanException;
+
+ /**
+ * Instantiates and registers an MBean in the MBean server. The
+ * class loader to be used is identified by its object name. An
+ * object name is associated to the MBean. If the object name of
+ * the loader is not specified, the ClassLoader that loaded the
+ * MBean server will be used. If the MBean object name given is
+ * null, the MBean must provide its own name by implementing the
+ * {@link javax.management.MBeanRegistration MBeanRegistration}
+ * interface and returning the name from the {@link
+ * javax.management.MBeanRegistration#preRegister preRegister} method.
+ *
+ * @param className The class name of the MBean to be instantiated.
+ * @param name The object name of the MBean. May be null.
+ * @param params An array containing the parameters of the
+ * constructor to be invoked.
+ * @param signature An array containing the signature of the
+ * constructor to be invoked.
+ * @param loaderName The object name of the class loader to be used.
+ *
+ * @return An <CODE>ObjectInstance</CODE>, containing the
+ * <CODE>ObjectName</CODE> and the Java class name of the newly
+ * instantiated MBean.
+ *
+ * @exception ReflectionException Wraps a
+ * <CODE>java.lang.ClassNotFoundException</CODE> or a
+ * <CODE>java.lang.Exception</CODE> that occurred when trying to
+ * invoke the MBean's constructor.
+ * @exception InstanceAlreadyExistsException The MBean is already
+ * under the control of the MBean server.
+ * @exception MBeanRegistrationException The
+ * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
+ * interface) method of the MBean has thrown an exception. The
+ * MBean will not be registered.
+ * @exception MBeanException The constructor of the MBean has
+ * thrown an exception
+ * @exception InstanceNotFoundException The specified class loader
+ * is not registered in the MBean server.
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The className
+ * passed in parameter is null, the <CODE>ObjectName</CODE> passed
+ * in parameter contains a pattern or no <CODE>ObjectName</CODE>
+ * is specified for the MBean.
+ *
+ */
+ public ObjectInstance createMBean(String className, ObjectName name,
+ ObjectName loaderName, Object params[],
+ String signature[])
+ throws ReflectionException, InstanceAlreadyExistsException,
+ MBeanRegistrationException, MBeanException,
+ NotCompliantMBeanException, InstanceNotFoundException;
+
+ /**
+ * Registers a pre-existing object as an MBean with the MBean
+ * server. If the object name given is null, the MBean must
+ * provide its own name by implementing the {@link
+ * javax.management.MBeanRegistration MBeanRegistration} interface
+ * and returning the name from the {@link
+ * javax.management.MBeanRegistration#preRegister preRegister} method.
+ *
+ * @param object The MBean to be registered as an MBean.
+ * @param name The object name of the MBean. May be null.
+ *
+ * @return The <CODE>ObjectInstance</CODE> for the MBean that has
+ * been registered.
+ *
+ * @exception InstanceAlreadyExistsException The MBean is already
+ * under the control of the MBean server.
+ * @exception MBeanRegistrationException The
+ * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
+ * interface) method of the MBean has thrown an exception. The
+ * MBean will not be registered.
+ * @exception NotCompliantMBeanException This object is not a JMX
+ * compliant MBean
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * passed in parameter is null or no object name is specified.
+ */
+ public ObjectInstance registerMBean(Object object, ObjectName name)
+ throws InstanceAlreadyExistsException, MBeanRegistrationException,
+ NotCompliantMBeanException;
+
+ /**
+ * Unregisters an MBean from the MBean server. The MBean is
+ * identified by its object name. Once the method has been
+ * invoked, the MBean may no longer be accessed by its object
+ * name.
+ *
+ * @param name The object name of the MBean to be unregistered.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ * @exception MBeanRegistrationException The preDeregister
+ * ((<CODE>MBeanRegistration</CODE> interface) method of the MBean
+ * has thrown an exception.
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * name in parameter is null or the MBean you are when trying to
+ * unregister is the {@link javax.management.MBeanServerDelegate
+ * MBeanServerDelegate} MBean.
+ *
+ */
+ public void unregisterMBean(ObjectName name)
+ throws InstanceNotFoundException, MBeanRegistrationException;
+
+ /**
+ * Gets the <CODE>ObjectInstance</CODE> for a given MBean
+ * registered with the MBean server.
+ *
+ * @param name The object name of the MBean.
+ *
+ * @return The <CODE>ObjectInstance</CODE> associated to the MBean
+ * specified by <VAR>name</VAR>.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ */
+ public ObjectInstance getObjectInstance(ObjectName name)
+ throws InstanceNotFoundException;
+
+ /**
+ * Gets MBeans controlled by the MBean server. This method allows
+ * any of the following to be obtained: All MBeans, a set of
+ * MBeans specified by pattern matching on the
+ * <CODE>ObjectName</CODE> and/or a Query expression, a specific
+ * MBean. When the object name is null or no domain and key
+ * properties are specified, all objects are to be selected (and
+ * filtered if a query is specified). It returns the set of
+ * <CODE>ObjectInstance</CODE> objects (containing the
+ * <CODE>ObjectName</CODE> and the Java Class name) for the
+ * selected MBeans.
+ *
+ * @param name The object name pattern identifying the MBeans to
+ * be retrieved. If null or no domain and key properties are
+ * specified, all the MBeans registered will be retrieved.
+ * @param query The query expression to be applied for selecting
+ * MBeans. If null no query expression will be applied for
+ * selecting MBeans.
+ *
+ * @return A set containing the <CODE>ObjectInstance</CODE>
+ * objects for the selected MBeans. If no MBean satisfies the
+ * query an empty list is returned.
+ */
+ public Set<ObjectInstance> queryMBeans(ObjectName name, QueryExp query);
+
+ /**
+ * Gets the names of MBeans controlled by the MBean server. This
+ * method enables any of the following to be obtained: The names
+ * of all MBeans, the names of a set of MBeans specified by
+ * pattern matching on the <CODE>ObjectName</CODE> and/or a Query
+ * expression, a specific MBean name (equivalent to testing
+ * whether an MBean is registered). When the object name is null
+ * or no domain and key properties are specified, all objects are
+ * selected (and filtered if a query is specified). It returns the
+ * set of ObjectNames for the MBeans selected.
+ *
+ * @param name The object name pattern identifying the MBean names
+ * to be retrieved. If null oror no domain and key properties are
+ * specified, the name of all registered MBeans will be retrieved.
+ * @param query The query expression to be applied for selecting
+ * MBeans. If null no query expression will be applied for
+ * selecting MBeans.
+ *
+ * @return A set containing the ObjectNames for the MBeans
+ * selected. If no MBean satisfies the query, an empty list is
+ * returned.
+ */
+ public Set<ObjectName> queryNames(ObjectName name, QueryExp query);
+
+ /**
+ * Checks whether an MBean, identified by its object name, is
+ * already registered with the MBean server.
+ *
+ * @param name The object name of the MBean to be checked.
+ *
+ * @return True if the MBean is already registered in the MBean
+ * server, false otherwise.
+ *
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * name in parameter is null.
+ */
+ public boolean isRegistered(ObjectName name);
+
+ /**
+ * Returns the number of MBeans registered in the MBean server.
+ */
+ public Integer getMBeanCount();
+
+ /**
+ * Gets the value of a specific attribute of a named MBean. The MBean
+ * is identified by its object name.
+ *
+ * @param name The object name of the MBean from which the
+ * attribute is to be retrieved.
+ * @param attribute A String specifying the name of the attribute
+ * to be retrieved.
+ *
+ * @return The value of the retrieved attribute.
+ *
+ * @exception AttributeNotFoundException The attribute specified
+ * is not accessible in the MBean.
+ * @exception MBeanException Wraps an exception thrown by the
+ * MBean's getter.
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ * @exception ReflectionException Wraps a
+ * <CODE>java.lang.Exception</CODE> thrown when trying to invoke
+ * the setter.
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * name in parameter is null or the attribute in parameter is
+ * null.
+ */
+ public Object getAttribute(ObjectName name, String attribute)
+ throws MBeanException, AttributeNotFoundException,
+ InstanceNotFoundException, ReflectionException;
+
+ /**
+ * Enables the values of several attributes of a named MBean. The MBean
+ * is identified by its object name.
+ *
+ * @param name The object name of the MBean from which the
+ * attributes are retrieved.
+ * @param attributes A list of the attributes to be retrieved.
+ *
+ * @return The list of the retrieved attributes.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ * @exception ReflectionException An exception occurred when
+ * trying to invoke the getAttributes method of a Dynamic MBean.
+ * @exception RuntimeOperationsException Wrap a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * name in parameter is null or attributes in parameter is null.
+ */
+ public AttributeList getAttributes(ObjectName name, String[] attributes)
+ throws InstanceNotFoundException, ReflectionException;
+
+ /**
+ * Sets the value of a specific attribute of a named MBean. The MBean
+ * is identified by its object name.
+ *
+ * @param name The name of the MBean within which the attribute is
+ * to be set.
+ * @param attribute The identification of the attribute to be set
+ * and the value it is to be set to.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ * @exception AttributeNotFoundException The attribute specified
+ * is not accessible in the MBean.
+ * @exception InvalidAttributeValueException The value specified
+ * for the attribute is not valid.
+ * @exception MBeanException Wraps an exception thrown by the
+ * MBean's setter.
+ * @exception ReflectionException Wraps a
+ * <CODE>java.lang.Exception</CODE> thrown when trying to invoke
+ * the setter.
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * name in parameter is null or the attribute in parameter is
+ * null.
+ */
+ public void setAttribute(ObjectName name, Attribute attribute)
+ throws InstanceNotFoundException, AttributeNotFoundException,
+ InvalidAttributeValueException, MBeanException,
+ ReflectionException;
+
+
+
+ /**
+ * Sets the values of several attributes of a named MBean. The MBean is
+ * identified by its object name.
+ *
+ * @param name The object name of the MBean within which the
+ * attributes are to be set.
+ * @param attributes A list of attributes: The identification of
+ * the attributes to be set and the values they are to be set to.
+ *
+ * @return The list of attributes that were set, with their new
+ * values.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ * @exception ReflectionException An exception occurred when
+ * trying to invoke the getAttributes method of a Dynamic MBean.
+ * @exception RuntimeOperationsException Wraps a
+ * <CODE>java.lang.IllegalArgumentException</CODE>: The object
+ * name in parameter is null or attributes in parameter is null.
+ */
+ public AttributeList setAttributes(ObjectName name,
+ AttributeList attributes)
+ throws InstanceNotFoundException, ReflectionException;
+
+ /**
+ * Invokes an operation on an MBean.
+ *
+ * @param name The object name of the MBean on which the method is
+ * to be invoked.
+ * @param operationName The name of the operation to be invoked.
+ * @param params An array containing the parameters to be set when
+ * the operation is invoked
+ * @param signature An array containing the signature of the
+ * operation. The class objects will be loaded using the same
+ * class loader as the one used for loading the MBean on which the
+ * operation was invoked.
+ *
+ * @return The object returned by the operation, which represents
+ * the result ofinvoking the operation on the MBean specified.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ * @exception MBeanException Wraps an exception thrown by the
+ * MBean's invoked method.
+ * @exception ReflectionException Wraps a
+ * <CODE>java.lang.Exception</CODE> thrown while trying to invoke
+ * the method.
+ */
+ public Object invoke(ObjectName name, String operationName,
+ Object params[], String signature[])
+ throws InstanceNotFoundException, MBeanException,
+ ReflectionException;
+
+ /**
+ * Returns the default domain used for naming the MBean.
+ * The default domain name is used as the domain part in the ObjectName
+ * of MBeans if no domain is specified by the user.
+ */
+ public String getDefaultDomain();
+
+ /**
+ * Returns the list of domains in which any MBean is currently
+ * registered.
+ */
+ public String[] getDomains();
+
+ /**
+ * <p>Adds a listener to a registered MBean.</p>
+ *
+ * <P> A notification emitted by an MBean will be forwarded by the
+ * MBeanServer to the listener. If the source of the notification
+ * is a reference to an MBean object, the MBean server will replace it
+ * by that MBean's ObjectName. Otherwise the source is unchanged.
+ *
+ * @param name The name of the MBean on which the listener should
+ * be added.
+ * @param listener The listener object which will handle the
+ * notifications emitted by the registered MBean.
+ * @param filter The filter object. If filter is null, no
+ * filtering will be performed before handling notifications.
+ * @param handback The context to be sent to the listener when a
+ * notification is emitted.
+ *
+ * @exception InstanceNotFoundException The MBean name provided
+ * does not match any of the registered MBeans.
+ */
+ public void addNotificationListener(ObjectName name,
+ NotificationListener listener,
+ NotificationFilter filter,
+ Object handback)
+ throws InstanceNotFoundException;
+
+
+ /**
+ * <p>Adds a listener to a registered MBean.</p>
+ *
+ * <p>A notification emitted by an MBean will be forwarded by the
+ * MBeanServer to the listener. If the source of the notification
+ * is a reference to an MBean object, the MBean server will
+ * replace it by that MBean's ObjectName. Otherwise the source is
+ * unchanged.</p>
+ *
+ * <p>The listener object that receives notifications is the one
+ * that is registered with the given name at the time this method
+ * is called. Even if it is subsequently unregistered, it will
+ * continue to receive notifications.</p>
+ *
+ * @param name The name of the MBean on which the listener should
+ * be added.
+ * @param listener The object name of the listener which will
+ * handle the notifications emitted by the registered MBean.
+ * @param filter The filter object. If filter is null, no
+ * filtering will be performed before handling notifications.
+ * @param handback The context to be sent to the listener when a
+ * notification is emitted.
+ *
+ * @exception InstanceNotFoundException The MBean name of the
+ * notification listener or of the notification broadcaster does
+ * not match any of the registered MBeans.
+ * @exception RuntimeOperationsException Wraps an {@link
+ * IllegalArgumentException}. The MBean named by
+ * <code>listener</code> exists but does not implement the {@link
+ * NotificationListener} interface.
+ * @exception IOException A communication problem occurred when
+ * talking to the MBean server.
+ */
+ public void addNotificationListener(ObjectName name,
+ ObjectName listener,
+ NotificationFilter filter,
+ Object handback)
+ throws InstanceNotFoundException;
+
+ /**
+ * Removes a listener from a registered MBean.
+ *
+ * <P> If the listener is registered more than once, perhaps with
+ * different filters or callbacks, this method will remove all
+ * those registrations.
+ *
+ * @param name The name of the MBean on which the listener should
+ * be removed.
+ * @param listener The object name of the listener to be removed.
+ *
+ * @exception InstanceNotFoundException The MBean name provided
+ * does not match any of the registered MBeans.
+ * @exception ListenerNotFoundException The listener is not
+ * registered in the MBean.
+ */
+ public void removeNotificationListener(ObjectName name,
+ ObjectName listener)
+ throws InstanceNotFoundException, ListenerNotFoundException;
+
+ /**
+ * <p>Removes a listener from a registered MBean.</p>
+ *
+ * <p>The MBean must have a listener that exactly matches the
+ * given <code>listener</code>, <code>filter</code>, and
+ * <code>handback</code> parameters. If there is more than one
+ * such listener, only one is removed.</p>
+ *
+ * <p>The <code>filter</code> and <code>handback</code> parameters
+ * may be null if and only if they are null in a listener to be
+ * removed.</p>
+ *
+ * @param name The name of the MBean on which the listener should
+ * be removed.
+ * @param listener A listener that was previously added to this
+ * MBean.
+ * @param filter The filter that was specified when the listener
+ * was added.
+ * @param handback The handback that was specified when the
+ * listener was added.
+ *
+ * @exception InstanceNotFoundException The MBean name provided
+ * does not match any of the registered MBeans.
+ * @exception ListenerNotFoundException The listener is not
+ * registered in the MBean, or it is not registered with the given
+ * filter and handback.
+ */
+ public void removeNotificationListener(ObjectName name,
+ ObjectName listener,
+ NotificationFilter filter,
+ Object handback)
+ throws InstanceNotFoundException, ListenerNotFoundException;
+
+
+ /**
+ * <p>Removes a listener from a registered MBean.</p>
+ *
+ * <P> If the listener is registered more than once, perhaps with
+ * different filters or callbacks, this method will remove all
+ * those registrations.
+ *
+ * @param name The name of the MBean on which the listener should
+ * be removed.
+ * @param listener The listener object which will handle the
+ * notifications emitted by the registered MBean.
+ *
+ * @exception InstanceNotFoundException The MBean name provided
+ * does not match any of the registered MBeans.
+ * @exception ListenerNotFoundException The listener is not
+ * registered in the MBean.
+ */
+ public void removeNotificationListener(ObjectName name,
+ NotificationListener listener)
+ throws InstanceNotFoundException, ListenerNotFoundException;
+
+ /**
+ * <p>Removes a listener from a registered MBean.</p>
+ *
+ * <p>The MBean must have a listener that exactly matches the
+ * given <code>listener</code>, <code>filter</code>, and
+ * <code>handback</code> parameters. If there is more than one
+ * such listener, only one is removed.</p>
+ *
+ * <p>The <code>filter</code> and <code>handback</code> parameters
+ * may be null if and only if they are null in a listener to be
+ * removed.</p>
+ *
+ * @param name The name of the MBean on which the listener should
+ * be removed.
+ * @param listener A listener that was previously added to this
+ * MBean.
+ * @param filter The filter that was specified when the listener
+ * was added.
+ * @param handback The handback that was specified when the
+ * listener was added.
+ *
+ * @exception InstanceNotFoundException The MBean name provided
+ * does not match any of the registered MBeans.
+ * @exception ListenerNotFoundException The listener is not
+ * registered in the MBean, or it is not registered with the given
+ * filter and handback.
+ */
+ public void removeNotificationListener(ObjectName name,
+ NotificationListener listener,
+ NotificationFilter filter,
+ Object handback)
+ throws InstanceNotFoundException, ListenerNotFoundException;
+
+ /**
+ * This method discovers the attributes and operations that an
+ * MBean exposes for management.
+ *
+ * @param name The name of the MBean to analyze
+ *
+ * @return An instance of <CODE>MBeanInfo</CODE> allowing the
+ * retrieval of all attributes and operations of this MBean.
+ *
+ * @exception IntrospectionException An exception occurred during
+ * introspection.
+ * @exception InstanceNotFoundException The MBean specified was
+ * not found.
+ * @exception ReflectionException An exception occurred when
+ * trying to invoke the getMBeanInfo of a Dynamic MBean.
+ */
+ public MBeanInfo getMBeanInfo(ObjectName name)
+ throws InstanceNotFoundException, IntrospectionException,
+ ReflectionException;
+
+
+ /**
+ * Returns true if the MBean specified is an instance of the
+ * specified class, false otherwise.
+ *
+ * @param name The <CODE>ObjectName</CODE> of the MBean.
+ * @param className The name of the class.
+ *
+ * @return true if the MBean specified is an instance of the
+ * specified class, false otherwise.
+ *
+ * @exception InstanceNotFoundException The MBean specified is not
+ * registered in the MBean server.
+ */
+ public boolean isInstanceOf(ObjectName name, String className)
+ throws InstanceNotFoundException;
+
+ /**
+ * <p>Return the {@link java.lang.ClassLoader} that was used for
+ * loading the class of the named MBean.
+ * @param mbeanName The ObjectName of the MBean.
+ * @return The ClassLoader used for that MBean.
+ * @exception InstanceNotFoundException if the named MBean is not found.
+ */
+ public ClassLoader getClassLoaderFor(ObjectName mbeanName)
+ throws InstanceNotFoundException;
+
+ /**
+ * <p>Return the named {@link java.lang.ClassLoader}.
+ * @param loaderName The ObjectName of the ClassLoader.
+ * @return The named ClassLoader.
+ * @exception InstanceNotFoundException if the named ClassLoader is
+ * not found.
+ */
+ public ClassLoader getClassLoader(ObjectName loaderName)
+ throws InstanceNotFoundException;
+
+}