Class JMXConnectionNotification
- All Implemented Interfaces:
- Serializable
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 System.currentTimeMillis()) indicating
 when the notification was constructed.
- Since:
- 1.5
- See Also:
- 
Field SummaryFieldsModifier and TypeFieldDescriptionstatic final StringNotification type string for a connection-closed notification.static final StringNotification type string for a connection-failed notification.static final StringNotification type string for a connection that has possibly lost notifications.static final StringNotification type string for a connection-opened notification.Fields declared in class javax.management.Notificationsource
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionThe connection ID to which this notification pertains.Methods declared in class javax.management.NotificationgetMessage, getSequenceNumber, getTimeStamp, getType, getUserData, setSequenceNumber, setSource, setTimeStamp, setUserData, toStringMethods declared in class java.util.EventObjectgetSource
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Field Details- 
OPENEDNotification type string for a connection-opened notification. - See Also:
 
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CLOSEDNotification type string for a connection-closed notification. - See Also:
 
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FAILEDNotification type string for a connection-failed notification. - See Also:
 
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NOTIFS_LOSTNotification type string for a connection that has possibly lost notifications. - See Also:
 
 
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Constructor Details- 
JMXConnectionNotificationpublic JMXConnectionNotification(String type, Object source, String connectionId, long sequenceNumber, String message, Object userData) Constructs a new connection notification. Thesourceof 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 ObjectNameunder which it is registered. Otherwise, it is a reference to the connector server object itself, an instance of a subclass ofJMXConnectorServer.
- 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- sequenceNumberin 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- connectionIdis null.
- IllegalArgumentException- if- sequenceNumberis negative.
 
- For a connector server, if it is registered in an MBean
 server, the source is the 
 
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Method Details- 
getConnectionIdThe connection ID to which this notification pertains. - Returns:
- the connection ID.
 
 
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