public class

JMXConnectionNotification

extends Notification

java.lang.Object
↳	java.util.EventObject
	↳	javax.management.Notification
		↳	javax.management.remote.JMXConnectionNotification

Class Overview

Notification emitted when a client connection is opened or closed or when notifications are lost. These notifications are sent by connector servers (instances of JMXConnectorServer) and by connector clients (instances of JMXConnector). For certain connectors, a session can consist of a sequence of connections. Connection-opened and connection-closed notifications will be sent for each one.

The notification type is one of the following:

Type	Meaning
`jmx.remote.connection.opened`	A new client connection has been opened.
`jmx.remote.connection.closed`	A client connection has been closed.
`jmx.remote.connection.failed`	A client connection has failed unexpectedly.
`jmx.remote.connection.notifs.lost`	A client connection has potentially lost notifications. This notification only appears on the client side.

The timeStamp of the notification is a time value (consistent with currentTimeMillis()) indicating when the notification was constructed.

Summary

Constants
String	CLOSED	Notification type string for a connection-closed notification.
String	FAILED	Notification type string for a connection-failed notification.
String	NOTIFS_LOST	Notification type string for a connection that has possibly lost notifications.
String	OPENED	Notification type string for a connection-opened notification.

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Inherited Fields

From class javax.management.Notification

From class java.util.EventObject

Public Constructors
	JMXConnectionNotification(String type, Object source, String connectionId, long sequenceNumber, String message, Object userData) Constructs a new connection notification.

Public Methods
String	getConnectionId() The connection ID to which this notification pertains.

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Inherited Methods

From class javax.management.Notification

From class java.util.EventObject

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Constants

public static final String CLOSED

Notification type string for a connection-closed notification.

Constant Value: "jmx.remote.connection.closed"

public static final String FAILED

Notification type string for a connection-failed notification.

Constant Value: "jmx.remote.connection.failed"

public static final String NOTIFS_LOST

Notification type string for a connection that has possibly lost notifications.

Constant Value: "jmx.remote.connection.notifs.lost"

public static final String OPENED

Notification type string for a connection-opened notification.

Constant Value: "jmx.remote.connection.opened"

Public Constructors

public JMXConnectionNotification (String type, Object source, String connectionId, long sequenceNumber, String message, Object userData)

Constructs a new connection notification. The source of the notification depends on whether it is being sent by a connector server or a connector client:

For a connector server, if it is registered in an MBean server, the source is the ObjectName under which it is registered. Otherwise, it is a reference to the connector server object itself, an instance of a subclass of JMXConnectorServer.
For a connector client, the source is a reference to the connector client object, an instance of a class implementing JMXConnector.

Parameters

type	the type of the notification. This is usually one of the constants `OPENED`, `CLOSED`, `FAILED`, `NOTIFS_LOST`. It is not an error for it to be a different string.
source	the connector server or client emitting the notification.
connectionId	the ID of the connection within its connector server.
sequenceNumber	a non-negative integer. It is expected but not required that this number will be greater than any previous `sequenceNumber` in a notification from this source.
message	an unspecified text message, typically containing a human-readable description of the event. Can be null.
userData	an object whose type and meaning is defined by the connector server. Can be null.

Throws

NullPointerException	if `type`, `source`, or `connectionId` is null.
IllegalArgumentException	if `sequenceNumber` is negative.

Interfaces

Classes

Exceptions