javax.management
Interface MBeanServer

public interface MBeanServer

This is the interface for MBean manipulation on the agent side. It contains the methods necessary for the creation, registration, and deletion of MBeans as well as the access methods for registered MBeans. This is the core component of the JMX infrastructure.

Every MBean which is added to the MBean server becomes manageable: its attributes and operations become remotely accessible through the connectors/adaptors connected to that MBean server. A Java object cannot be registered in the MBean server unless it is a JMX compliant MBean.

When an MBean is registered or unregistered in the MBean server an MBeanServerNotification Notification is emitted. To register an object as listener to MBeanServerNotifications call the MBean server method addNotificationListener with ObjectName the ObjectName of the MBeanServerDelegate. This ObjectName is: JMImplementation:type=MBeanServerDelegate.

Version:

1.10

 

Method Summary
 void addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, java.lang.Object handback)
    Enables to add a listener to a registered MBean.
 void addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, java.lang.Object handback)
    Enables to add a listener to a registered MBean.
 ObjectInstance createMBean(java.lang.String className, ObjectName name)
    Instantiates and registers an MBean in the MBean server.
 ObjectInstance createMBean(java.lang.String className, ObjectName name, java.lang.Object[] params, java.lang.String[] signature)
    Instantiates and registers an MBean in the MBean server.
 ObjectInstance createMBean(java.lang.String className, ObjectName name, ObjectName loaderName)
    Instantiates and registers an MBean in the MBean server.
 ObjectInstance createMBean(java.lang.String className, ObjectName name, ObjectName loaderName, java.lang.Object[] params, java.lang.String[] signature)
    Instantiates and registers an MBean in the MBean server.
 java.io.ObjectInputStream deserialize(ObjectName name, byte[] data)
    De-serializes a byte array in the context of the class loader of an MBean.
 java.io.ObjectInputStream deserialize(java.lang.String className, byte[] data)
    De-serializes a byte array in the context of a given MBean class loader.
 java.io.ObjectInputStream deserialize(java.lang.String className, ObjectName loaderName, byte[] data)
    De-serializes a byte array in the context of a given MBean class loader.
 java.lang.Object getAttribute(ObjectName name, java.lang.String attribute)
    Gets the value of a specific attribute of a named MBean.
 AttributeList getAttributes(ObjectName name, java.lang.String[] attributes)
    Enables the values of several attributes of a named MBean.
 java.lang.String getDefaultDomain()
    Returns the default domain used for naming the MBean.
 java.lang.Integer getMBeanCount()
    Returns the number of MBeans registered in the MBean server.
 MBeanInfo getMBeanInfo(ObjectName name)
    This method discovers the attributes and operations that an MBean exposes for management.
 ObjectInstance getObjectInstance(ObjectName name)
    Gets the ObjectInstance for a given MBean registered with the MBean server.
 java.lang.Object instantiate(java.lang.String className)
    Instantiates an object using the list of all class loaders registered in the MBean server (Default Loader Repository).
 java.lang.Object instantiate(java.lang.String className, java.lang.Object[] params, java.lang.String[] signature)
    Instantiates an object using the list of all class loaders registered in the MBean server (Default Loader Repository).
 java.lang.Object instantiate(java.lang.String className, ObjectName loaderName)
    Instantiates an object using the class Loader specified by its ObjectName.
 java.lang.Object instantiate(java.lang.String className, ObjectName loaderName, java.lang.Object[] params, java.lang.String[] signature)
    Instantiates an object.
 java.lang.Object invoke(ObjectName name, java.lang.String operationName, java.lang.Object[] params, java.lang.String[] signature)
    Invokes an operation on an MBean.
 boolean isInstanceOf(ObjectName name, java.lang.String className)
    Returns true if the MBean specified is an instance of the specified class, false otherwise.
 boolean isRegistered(ObjectName name)
    Checks whether an MBean, identified by its object name, is already registered with the MBean server.
 java.util.Set queryMBeans(ObjectName name, QueryExp query)
    Gets MBeans controlled by the MBean server.
 java.util.Set queryNames(ObjectName name, QueryExp query)
    Gets the names of MBeans controlled by the MBean server.
 ObjectInstance registerMBean(java.lang.Object object, ObjectName name)
    Registers a pre-existing object as an MBean with the MBean server.
 void removeNotificationListener(ObjectName name, NotificationListener listener)
    Enables to remove a listener from a registered MBean.
 void removeNotificationListener(ObjectName name, ObjectName listener)
    Enables to remove a listener from a registered MBean.
 void setAttribute(ObjectName name, Attribute attribute)
    Sets the value of a specific attribute of a named MBean.
 AttributeList setAttributes(ObjectName name, AttributeList attributes)
    Sets the values of several attributes of a named MBean.
 void unregisterMBean(ObjectName name)
    De-registers an MBean from the MBean server.
 

 

Method Detail

addNotificationListener

public void addNotificationListener(ObjectName name,
                                    NotificationListener listener,
                                    NotificationFilter filter,
                                    java.lang.Object handback)
                             throws InstanceNotFoundException

Enables to add a listener to a registered MBean.

 

Parameters:

name - The name of the MBean on which the listener should be added.

listener - The listener object which will handle the notifications emitted by the registered MBean.

filter - The filter object. If filter is null, no filtering will be performed before handling notifications.

handback - The context to be sent to the listener when a notification is emitted.

 

Throws:

InstanceNotFoundException - The MBean name provided does not match any of the registered MBeans.

addNotificationListener

public void addNotificationListener(ObjectName name,
                                    ObjectName listener,
                                    NotificationFilter filter,
                                    java.lang.Object handback)
                             throws InstanceNotFoundException

Enables to add a listener to a registered MBean.

 

Parameters:

name - The name of the MBean on which the listener should be added.

listener - The object name of the listener which will handle the notifications emitted by the registered MBean.

filter - The filter object. If filter is null, no filtering will be performed before handling notifications.

handback - The context to be sent to the listener when a notification is emitted.

 

Throws:

InstanceNotFoundException - The MBean name of the notification listener or of the notification broadcaster does not match any of the registered MBeans.

removeNotificationListener

public void removeNotificationListener(ObjectName name,
                                       NotificationListener listener)
                                throws InstanceNotFoundException,
                                       ListenerNotFoundException

Enables to remove a listener from a registered MBean.

 

Parameters:

name - The name of the MBean on which the listener should be removed.

listener - The listener object which will handle the notifications emitted by the registered MBean. This method will remove all the information related to this listener.

 

Throws:

InstanceNotFoundException - The MBean name provided does not match any of the registered MBeans.

ListenerNotFoundException - The listener is not registered in the MBean Repository.

removeNotificationListener

public void removeNotificationListener(ObjectName name,
                                       ObjectName listener)
                                throws InstanceNotFoundException,
                                       ListenerNotFoundException

Enables to remove a listener from a registered MBean.

 

Parameters:

name - The name of the MBean on which the listener should be removed.

listener - The object name of the listener which will handle the notifications emitted by the registered MBean. This method will remove all the information related to this listener.

 

Throws:

InstanceNotFoundException - The MBean name provided does not match any of the registered MBeans.

ListenerNotFoundException - The listener is not registered in the MBean Repository.

createMBean

public ObjectInstance createMBean(java.lang.String className,
                                  ObjectName name)
                           throws ReflectionException,
                                  InstanceAlreadyExistsException,
                                  MBeanRegistrationException,
                                  MBeanException,
                                  NotCompliantMBeanException

Instantiates and registers an MBean in the MBean server. The MBean server will use the Default Loader Repository to load the class of the MBean. An object name is associated to the MBean. If the given object name is null, the MBean can automatically provide its own name by implementing the MBeanRegistration interface. The call returns an ObjectInstance object representing the newly created MBean.

 

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

 

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

NotCompliantMBeanException - This class is not a JMX compliant MBean.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null, the ObjectName passed in parameter contains a pattern or no ObjectName is specified for the MBean.

createMBean

public ObjectInstance createMBean(java.lang.String className,
                                  ObjectName name,
                                  ObjectName loaderName)
                           throws ReflectionException,
                                  InstanceAlreadyExistsException,
                                  MBeanRegistrationException,
                                  MBeanException,
                                  NotCompliantMBeanException,
                                  InstanceNotFoundException

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 null, the ClassLoader that loaded the MBean server will be used. If the MBean's object name given is null, the MBean can automatically provide its own name by implementing the MBeanRegistration interface. The call returns an ObjectInstance object representing the newly created MBean.

 

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

loaderName - The object name of the class loader to be used.

 

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

NotCompliantMBeanException - This class is not a JMX compliant MBean.

InstanceNotFoundException - The specified class loader is not registered in the MBean server.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null, the ObjectName passed in parameter contains a pattern or no ObjectName is specified for the MBean.

createMBean

public ObjectInstance createMBean(java.lang.String className,
                                  ObjectName name,
                                  java.lang.Object[] params,
                                  java.lang.String[] signature)
                           throws ReflectionException,
                                  InstanceAlreadyExistsException,
                                  MBeanRegistrationException,
                                  MBeanException,
                                  NotCompliantMBeanException

Instantiates and registers an MBean in the MBean server. The MBean server will use the Default Loader Repository to load the class of the MBean. An object name is associated to the MBean. If the given object name is null, the MBean can automatically provide its own name by implementing the MBeanRegistration interface. The call returns an ObjectInstance object representing the newly created MBean.

 

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

params - An array containing the parameters of the constructor to be invoked.

signature - An array containing the signature of the constructor to be invoked.

 

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null, the ObjectName passed in parameter contains a pattern or no ObjectName is specified for the MBean.

createMBean

public ObjectInstance createMBean(java.lang.String className,
                                  ObjectName name,
                                  ObjectName loaderName,
                                  java.lang.Object[] params,
                                  java.lang.String[] signature)
                           throws ReflectionException,
                                  InstanceAlreadyExistsException,
                                  MBeanRegistrationException,
                                  MBeanException,
                                  NotCompliantMBeanException,
                                  InstanceNotFoundException

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 can automatically provide its own name by implementing the MBeanRegistration interface. The call returns an ObjectInstance object representing the newly created MBean.

 

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

params - An array containing the parameters of the constructor to be invoked.

signature - An array containing the signature of the constructor to be invoked.

loaderName - The object name of the class loader to be used.

 

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

InstanceNotFoundException - The specified class loader is not registered in the MBean server.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null, the ObjectName passed in parameter contains a pattern or no ObjectName is specified for the MBean.

registerMBean

public ObjectInstance registerMBean(java.lang.Object object,
                                    ObjectName name)
                             throws InstanceAlreadyExistsException,
                                    MBeanRegistrationException,
                                    NotCompliantMBeanException

Registers a pre-existing object as an MBean with the MBean server. If the object name given is null, the MBean may automatically provide its own name by implementing the MBeanRegistration interface. The call returns an ObjectInstance object representing the registered MBean.

 

Parameters:

object - The MBean to be registered as an MBean.

name - The object name of the MBean. May be null.

 

Returns:

The ObjectInstance for the MBean that has been registered.

 

Throws:

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

NotCompliantMBeanException - This object is not a JMX compliant MBean

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object passed in parameter is null or no object name is specified

unregisterMBean

public void unregisterMBean(ObjectName name)
                     throws InstanceNotFoundException,
                            MBeanRegistrationException

De-registers 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.

 

Parameters:

name - The object name of the MBean to be de-registered.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

MBeanRegistrationException - The preDeregister (MBeanRegistration interface) method of the MBean has thrown an exception.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object name in parameter is null or the MBean you are when trying to de-register is the MBeanServerDelegate MBean.

isRegistered

public boolean isRegistered(ObjectName name)

Checks whether an MBean, identified by its object name, is already registered with the MBean server.

 

Parameters:

name - The object name of the MBean to be checked.

 

Returns:

True if the MBean is already registered in the MBean server, false otherwise.

 

Throws:

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object name in parameter is null.

isInstanceOf

public boolean isInstanceOf(ObjectName name,
                            java.lang.String className)
                     throws InstanceNotFoundException

Returns true if the MBean specified is an instance of the specified class, false otherwise.

 

Parameters:

name - The ObjectName of the MBean.

className - The name of the class.

 

Returns:

True if the MBean is already registered in the MBean server, false otherwise.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

deserialize

public java.io.ObjectInputStream deserialize(ObjectName name,
                                             byte[] data)
                                      throws InstanceNotFoundException,
                                             OperationsException

De-serializes a byte array in the context of the class loader of an MBean.

 

Parameters:

name - The name of the MBean whose class loader should be used for the de-serialization.

data - The byte array to be de-sererialized.

 

Returns:

The de-serialized object stream.

 

Throws:

InstanceNotFoundException - The MBean specified is not found.

OperationsException - Any of the usual Input/Output related exceptions.

deserialize

public java.io.ObjectInputStream deserialize(java.lang.String className,
                                             byte[] data)
                                      throws OperationsException,
                                             ReflectionException

De-serializes a byte array in the context of a given MBean class loader. The class loader is the one that loaded the class with name "className".

 

Parameters:

name - The name of the class whose class loader should be used for the de-serialization.

data - The byte array to be de-sererialized.

 

Returns:

The de-serialized object stream.

 

Throws:

OperationsException - Any of the usual Input/Output related exceptions.

ReflectionException - The specified class could not be loaded by the default loader repository

deserialize

public java.io.ObjectInputStream deserialize(java.lang.String className,
                                             ObjectName loaderName,
                                             byte[] data)
                                      throws InstanceNotFoundException,
                                             OperationsException,
                                             ReflectionException

De-serializes a byte array in the context of a given MBean class loader. The class loader is the one that loaded the class with name "className". The name of the class loader to be used for loading the specified class is specified. If null, the MBean Server's class loader will be used.

 

Parameters:

name - The name of the class whose class loader should be used for the de-serialization.

data - The byte array to be de-sererialized.

loaderName - The name of the class loader to be used for loading the specified class. If null, the MBean Server's class loader will be used.

 

Returns:

The de-serialized object stream.

 

Throws:

InstanceNotFoundException - The specified class loader MBean is not found.

OperationsException - Any of the usual Input/Output related exceptions.

ReflectionException - The specified class could not be loaded by the specified class loader.

getAttribute

public java.lang.Object getAttribute(ObjectName name,
                                     java.lang.String attribute)
                              throws MBeanException,
                                     AttributeNotFoundException,
                                     InstanceNotFoundException,
                                     ReflectionException

Gets the value of a specific attribute of a named MBean. The MBean is identified by its object name.

 

Parameters:

name - The object name of the MBean from which the attribute is to be retrieved.

attribute - A String specifying the name of the attribute to be retrieved.

 

Returns:

The value of the retrieved attribute.

 

Throws:

AttributeNotFoundException - The attribute specified is not accessible in the MBean.

MBeanException - Wraps an exception thrown by the MBean's getter.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

ReflectionException - Wraps a java.lang.Exception thrown when trying to invoke the getAttribute method of a Dynamic MBean.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object name in parameter is null or the attribute in parameter is null.

getAttributes

public AttributeList getAttributes(ObjectName name,
                                   java.lang.String[] attributes)
                            throws InstanceNotFoundException,
                                   ReflectionException

Enables the values of several attributes of a named MBean. The MBean is identified by its object name.

 

Parameters:

name - The object name of the MBean from which the attributes are retrieved.

attributes - A list of the attributes to be retrieved.

 

Returns:

The list of the retrieved attributes.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

ReflectionException - Wraps a java.lang.Exception thrown when trying to invoke the getAttributes method of a Dynamic MBean.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object name in parameter is null or attributes in parameter is null.

getDefaultDomain

public java.lang.String getDefaultDomain()

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.

getMBeanCount

public java.lang.Integer getMBeanCount()

Returns the number of MBeans registered in the MBean server.

getMBeanInfo

public MBeanInfo getMBeanInfo(ObjectName name)
                       throws InstanceNotFoundException,
                              IntrospectionException,
                              ReflectionException

This method discovers the attributes and operations that an MBean exposes for management.

 

Parameters:

name - The name of the MBean to analyze

 

Returns:

An instance of MBeanInfo allowing the retrieval of all attributes and operations of this MBean.

 

Throws:

IntrospectionException - An exception occurs during introspection.

InstanceNotFoundException - The MBean specified is not found.

ReflectionException - An exception occurred when trying to invoke the getMBeanInfo of a Dynamic MBean.

getObjectInstance

public ObjectInstance getObjectInstance(ObjectName name)
                                 throws InstanceNotFoundException

Gets the ObjectInstance for a given MBean registered with the MBean server.

 

Parameters:

name - The object name of the MBean.

 

Returns:

The ObjectInstance associated to the MBean specified by name.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

instantiate

public java.lang.Object instantiate(java.lang.String className)
                             throws ReflectionException,
                                    MBeanException

Instantiates an object using the list of all class loaders registered in the MBean server (Default Loader Repository). The object's class should have a public constructor. It returns a reference to the newly created object. The newly created object is not registered in the MBean server.

 

Parameters:

classname - The class name of the object to be instantiated.

 

Returns:

The newly instantiated object.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.

MBeanException - The constructor of the object has thrown an exception

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException. The className passed in parameter is null.

instantiate

public java.lang.Object instantiate(java.lang.String className,
                                    java.lang.Object[] params,
                                    java.lang.String[] signature)
                             throws ReflectionException,
                                    MBeanException

Instantiates an object using the list of all class loaders registered in the MBean server (Default Loader Repository). The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.

 

Parameters:

className - The class name of the object to be instantiated.

params - An array containing the parameters of the constructor to be invoked.

signature - An array containing the signature of the constructor to be invoked.

 

Returns:

The newly instantiated object.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.

MBeanException - The constructor of the object has thrown an exception.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

instantiate

public java.lang.Object instantiate(java.lang.String className,
                                    ObjectName loaderName)
                             throws ReflectionException,
                                    MBeanException,
                                    InstanceNotFoundException

Instantiates an object using the class Loader specified by its ObjectName. If the loader name is null, the ClassLoader that loaded the MBean Server will be used. The object's class should have a public constructor. It returns a reference to the newly created object. The newly created object is not registered in the MBean server.

 

Parameters:

className - The class name of the MBean to be instantiated.

loaderName - The object name of the class loader to be used

 

Returns:

The newly instantiated object.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.

MBeanException - The constructor of the object has thrown an exception.

InstanceNotFoundException - The specified class loader is not registered in the MBaenServer.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

instantiate

public java.lang.Object instantiate(java.lang.String className,
                                    ObjectName loaderName,
                                    java.lang.Object[] params,
                                    java.lang.String[] signature)
                             throws ReflectionException,
                                    MBeanException,
                                    InstanceNotFoundException

Instantiates an object. The class loader to be used is identified by its object name. If the object name of the loader is null, the ClassLoader that loaded the MBean server will be used. The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.

 

Parameters:

className - The class name of the object to be instantiated.

params - An array containing the parameters of the constructor to be invoked.

signature - An array containing the signature of the constructor to be invoked.

loaderName - The object name of the class loader to be used

 

Returns:

The newly instantiated object.

 

Throws:

ReflectionException - Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.

MBeanException - The constructor of the object has thrown an exception

InstanceNotFoundException - The specified class loader is not registered in the MBeanServer.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

invoke

public java.lang.Object invoke(ObjectName name,
                               java.lang.String operationName,
                               java.lang.Object[] params,
                               java.lang.String[] signature)
                        throws InstanceNotFoundException,
                               MBeanException,
                               ReflectionException

Invokes an operation on an MBean.

 

Parameters:

name - The object name of the MBean on which the method is to be invoked.

operationName - The name of the operation to be invoked.

params - An array containing the parameters to be set when the operation is invoked.

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.

 

Returns:

The object returned by the operation, which represents the result of invoking the operation on the MBean specified.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

MBeanException - Wraps an exception thrown by the MBean's invoked method.

ReflectionException - Wraps a java.lang.Exception thrown while trying to invoke the method.

queryMBeans

public java.util.Set queryMBeans(ObjectName name,
                                 QueryExp query)

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 ObjectName 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 ObjectInstance objects (containing the ObjectName and the Java Class name) for the selected MBeans.

 

Parameters:

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.

query - The query expression to be applied for selecting MBeans. If null no query expression will be applied for selecting MBeans.

 

Returns:

A set containing the ObjectInstance objects for the selected MBeans. If no MBean satisfies the query an empty list is returned.

queryNames

public java.util.Set queryNames(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 ObjectName 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.

 

Parameters:

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.

query - The query expression to be applied for selecting MBeans. If null no query expression will be applied for selecting MBeans.

 

Returns:

A set containing the ObjectNames for the selected MBeans. If no MBean satisfies the query an empty list is returned.

setAttribute

public void setAttribute(ObjectName name,
                         Attribute attribute)
                  throws InstanceNotFoundException,
                         AttributeNotFoundException,
                         InvalidAttributeValueException,
                         MBeanException,
                         ReflectionException

Sets the value of a specific attribute of a named MBean. The MBean is identified by its object name.

 

Parameters:

name - The name of the MBean within which the attribute is to be set.

attribute - The identification of the attribute to be set and the value it is to be set to.

 

Returns:

The value of the attribute that has been set.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

AttributeNotFoundException - The attribute specified is not accessible in the MBean.

InvalidAttributeValueException - The value specified for the attribute is not valid.

MBeanException - Wraps an exception thrown by the MBean's setter.

ReflectionException - Wraps a java.lang.Exception thrown when trying to invoke the setAttribute method of a Dynamic MBean.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object name in parameter is null or the attribute in parameter is null.

setAttributes

public AttributeList setAttributes(ObjectName name,
                                   AttributeList attributes)
                            throws InstanceNotFoundException,
                                   ReflectionException

Sets the values of several attributes of a named MBean. The MBean is identified by its object name.

 

Parameters:

name - The object name of the MBean within which the attributes are to be set.

attributes - A list of attributes: The identification of the attributes to be set and the values they are to be set to.

 

Returns:

The list of attributes that were set, with their new values.

 

Throws:

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

ReflectionException - An exception occurred when trying to invoke the getAttributes method of a Dynamic MBean.

RuntimeOperationsException - Wraps a java.lang.IllegalArgumentException: The object name in parameter is null or attributes in parameter is null.