- All Implemented Interfaces:
DynamicMBean
,MBeanRegistration
,NotificationBroadcaster
,NotificationEmitter
public class StandardEmitterMBean extends StandardMBean implements NotificationEmitter
An MBean whose management interface is determined by reflection on a Java interface, and that emits notifications.
The following example shows how to use the public constructor
StandardEmitterMBean(implementation, mbeanInterface, emitter)
to
create an MBean emitting notifications with any
implementation class name Impl, with a management
interface defined (as for current Standard MBeans) by any interface
Intf, and with any implementation of the interface
NotificationEmitter
. The example uses the class
NotificationBroadcasterSupport
as an implementation
of the interface NotificationEmitter
.
MBeanServer mbs; ... final String[] types = new String[] {"sun.disc.space","sun.disc.alarm"}; final MBeanNotificationInfo info = new MBeanNotificationInfo( types, Notification.class.getName(), "Notification about disc info."); final NotificationEmitter emitter = new NotificationBroadcasterSupport(info); final Intf impl = new Impl(...); final Object mbean = new StandardEmitterMBean( impl, Intf.class, emitter); mbs.registerMBean(mbean, objectName);
- Since:
- 1.6
- See Also:
StandardMBean
-
Constructor Summary
Constructors Modifier Constructor Description protected
StandardEmitterMBean(Class<?> mbeanInterface, boolean isMXBean, NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface
, and where notifications are handled by the givenNotificationEmitter
.protected
StandardEmitterMBean(Class<?> mbeanInterface, NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface
, and where notifications are handled by the givenNotificationEmitter
.StandardEmitterMBean(T implementation, Class<T> mbeanInterface, boolean isMXBean, NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface
, with the given implementation and where notifications are handled by the givenNotificationEmitter
.StandardEmitterMBean(T implementation, Class<T> mbeanInterface, NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface
, with the given implementation and where notifications are handled by the givenNotificationEmitter
. -
Method Summary
Modifier and Type Method Description void
sendNotification(Notification n)
Sends a notification.Methods declared in class javax.management.StandardMBean
cacheMBeanInfo, getCachedMBeanInfo, getClassName, getConstructors, getDescription, getDescription, getDescription, getDescription, getDescription, getDescription, getDescription, getImpact, getImplementation, getImplementationClass, getMBeanInfo, getMBeanInterface, getParameterName, getParameterName, postDeregister, postRegister, preDeregister, preRegister, setImplementation
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javax.management.DynamicMBean
getAttribute, getAttributes, invoke, setAttribute, setAttributes
Methods declared in interface javax.management.NotificationBroadcaster
addNotificationListener, getNotificationInfo, removeNotificationListener
-
Constructor Details
-
StandardEmitterMBean
public StandardEmitterMBean(T implementation, Class<T> mbeanInterface, NotificationEmitter emitter)Make an MBean whose management interface is specified by
mbeanInterface
, with the given implementation and where notifications are handled by the givenNotificationEmitter
. The resultant MBean implements theNotificationEmitter
interface by forwarding its methods toemitter
. It is legal and useful forimplementation
andemitter
to be the same object.If
emitter
is an instance ofNotificationBroadcasterSupport
then the MBean'ssendNotification
method will callemitter.
sendNotification
.The array returned by
NotificationBroadcaster.getNotificationInfo()
on the new MBean is a copy of the array returned byemitter.
getNotificationInfo()
at the time of construction. If the array returned byemitter.getNotificationInfo()
later changes, that will have no effect on this object'sgetNotificationInfo()
.- Type Parameters:
T
- the implementation type of the MBean- Parameters:
implementation
- the implementation of the MBean interface.mbeanInterface
- a Standard MBean interface.emitter
- the object that will handle notifications.- Throws:
IllegalArgumentException
- if thembeanInterface
does not follow JMX design patterns for Management Interfaces, or if the givenimplementation
does not implement the specified interface, or ifemitter
is null.
-
StandardEmitterMBean
public StandardEmitterMBean(T implementation, Class<T> mbeanInterface, boolean isMXBean, NotificationEmitter emitter)Make an MBean whose management interface is specified by
mbeanInterface
, with the given implementation and where notifications are handled by the givenNotificationEmitter
. This constructor can be used to make either Standard MBeans or MXBeans. The resultant MBean implements theNotificationEmitter
interface by forwarding its methods toemitter
. It is legal and useful forimplementation
andemitter
to be the same object.If
emitter
is an instance ofNotificationBroadcasterSupport
then the MBean'ssendNotification
method will callemitter.
sendNotification
.The array returned by
NotificationBroadcaster.getNotificationInfo()
on the new MBean is a copy of the array returned byemitter.
getNotificationInfo()
at the time of construction. If the array returned byemitter.getNotificationInfo()
later changes, that will have no effect on this object'sgetNotificationInfo()
.- Type Parameters:
T
- the implementation type of the MBean- Parameters:
implementation
- the implementation of the MBean interface.mbeanInterface
- a Standard MBean interface.isMXBean
- If true, thembeanInterface
parameter names an MXBean interface and the resultant MBean is an MXBean.emitter
- the object that will handle notifications.- Throws:
IllegalArgumentException
- if thembeanInterface
does not follow JMX design patterns for Management Interfaces, or if the givenimplementation
does not implement the specified interface, or ifemitter
is null.
-
StandardEmitterMBean
Make an MBean whose management interface is specified by
mbeanInterface
, and where notifications are handled by the givenNotificationEmitter
. The resultant MBean implements theNotificationEmitter
interface by forwarding its methods toemitter
.If
emitter
is an instance ofNotificationBroadcasterSupport
then the MBean'ssendNotification
method will callemitter.
sendNotification
.The array returned by
NotificationBroadcaster.getNotificationInfo()
on the new MBean is a copy of the array returned byemitter.
getNotificationInfo()
at the time of construction. If the array returned byemitter.getNotificationInfo()
later changes, that will have no effect on this object'sgetNotificationInfo()
.This constructor must be called from a subclass that implements the given
mbeanInterface
.- Parameters:
mbeanInterface
- a StandardMBean interface.emitter
- the object that will handle notifications.- Throws:
IllegalArgumentException
- if thembeanInterface
does not follow JMX design patterns for Management Interfaces, or ifthis
does not implement the specified interface, or ifemitter
is null.
-
StandardEmitterMBean
protected StandardEmitterMBean(Class<?> mbeanInterface, boolean isMXBean, NotificationEmitter emitter)Make an MBean whose management interface is specified by
mbeanInterface
, and where notifications are handled by the givenNotificationEmitter
. This constructor can be used to make either Standard MBeans or MXBeans. The resultant MBean implements theNotificationEmitter
interface by forwarding its methods toemitter
.If
emitter
is an instance ofNotificationBroadcasterSupport
then the MBean'ssendNotification
method will callemitter.
sendNotification
.The array returned by
NotificationBroadcaster.getNotificationInfo()
on the new MBean is a copy of the array returned byemitter.
getNotificationInfo()
at the time of construction. If the array returned byemitter.getNotificationInfo()
later changes, that will have no effect on this object'sgetNotificationInfo()
.This constructor must be called from a subclass that implements the given
mbeanInterface
.- Parameters:
mbeanInterface
- a StandardMBean interface.isMXBean
- If true, thembeanInterface
parameter names an MXBean interface and the resultant MBean is an MXBean.emitter
- the object that will handle notifications.- Throws:
IllegalArgumentException
- if thembeanInterface
does not follow JMX design patterns for Management Interfaces, or ifthis
does not implement the specified interface, or ifemitter
is null.
-
-
Method Details
-
sendNotification
Sends a notification.
If the
emitter
parameter to the constructor was an instance ofNotificationBroadcasterSupport
then this method will callemitter.
sendNotification
.- Parameters:
n
- the notification to send.- Throws:
ClassCastException
- if theemitter
parameter to the constructor was not aNotificationBroadcasterSupport
.
-