File	Doc	Category	Size	Date	Package
JMXConnector.java	API Doc	Java SE 5 API	12356	Fri Aug 26 14:57:38 BST 2005	javax.management.remote

JMXConnector

Fields Summary
public static final String	CREDENTIALS Name of the attribute that specifies the credentials to send to the connector server during connection. The value associated with this attribute, if any, is a serializable object of an appropriate type for the server's {@link JMXAuthenticator}.

Constructors Summary

Methods Summary
public void	addConnectionNotificationListener(javax.management.NotificationListener listener, javax.management.NotificationFilter filter, java.lang.Object handback) Adds a listener to be informed of changes in connection status. The listener will receive notifications of type {@link JMXConnectionNotification}. An implementation can send other types of notifications too. Any number of listeners can be added with this method. The same listener can be added more than once with the same or different values for the filter and handback. There is no special treatment of a duplicate entry. For example, if a listener is registered twice with no filter, then its handleNotification method will be called twice for each notification. param listener a listener to receive connection status notifications. param filter a filter to select which notifications are to be delivered to the listener, or null if all notifications are to be delivered. param handback an object to be given to the listener along with each notification. Can be null. exception NullPointerException if listener is null. see #removeConnectionNotificationListener see NotificationBroadcaster#addNotificationListener
public void	close() Closes the client connection to its server. Any ongoing or new request using the MBeanServerConnection returned by {@link #getMBeanServerConnection()} will get an IOException. If close has already been called successfully on this object, calling it again has no effect. If close has never been called, or if it was called but produced an exception, an attempt will be made to close the connection. This attempt can succeed, in which case close will return normally, or it can generate an exception. Closing a connection is a potentially slow operation. For example, if the server has crashed, the close operation might have to wait for a network protocol timeout. Callers that do not want to block in a close operation should do it in a separate thread. exception IOException if the connection cannot be closed cleanly. If this exception is thrown, it is not known whether the server end of the connection has been cleanly closed.
public void	connect() Establishes the connection to the connector server. This method is equivalent to {@link #connect(Map) connect(null)}. exception IOException if the connection could not be made because of a communication problem. exception SecurityException if the connection could not be made for security reasons.
public void	connect(java.util.Map env) Establishes the connection to the connector server. If connect has already been called successfully on this object, calling it again has no effect. If, however, {@link #close} was called after connect, the new connect will throw an IOException. Otherwise, either connect has never been called on this object, or it has been called but produced an exception. Then calling connect will attempt to establish a connection to the connector server. param env the properties of the connection. Properties in this map override properties in the map specified when the JMXConnector was created, if any. This parameter can be null, which is equivalent to an empty map. exception IOException if the connection could not be made because of a communication problem. exception SecurityException if the connection could not be made for security reasons.
public java.lang.String	getConnectionId() Gets this connection's ID from the connector server. For a given connector server, every connection will have a unique id which does not change during the lifetime of the connection. return the unique ID of this connection. This is the same as the ID that the connector server includes in its {@link JMXConnectionNotification}s. The {@link javax.management.remote package description} describes the conventions for connection IDs. exception IOException if the connection ID cannot be obtained, for instance because the connection is closed or broken.
public javax.management.MBeanServerConnection	getMBeanServerConnection() Returns an MBeanServerConnection object representing a remote MBean server. For a given JMXConnector, two successful calls to this method will usually return the same MBeanServerConnection object, though this is not required. For each method in the returned MBeanServerConnection, calling the method causes the corresponding method to be called in the remote MBean server. The value returned by the MBean server method is the value returned to the client. If the MBean server method produces an Exception, the same Exception is seen by the client. If the MBean server method, or the attempt to call it, produces an Error, the Error is wrapped in a {@link JMXServerErrorException}, which is seen by the client. Calling this method is equivalent to calling {@link #getMBeanServerConnection(Subject) getMBeanServerConnection(null)} meaning that no delegation subject is specified and that all the operations called on the MBeanServerConnection must use the authenticated subject, if any. return an object that implements the MBeanServerConnection interface by forwarding its methods to the remote MBean server. exception IOException if a valid MBeanServerConnection cannot be created, for instance because the connection to the remote MBean server has not yet been established (with the {@link #connect(Map) connect} method), or it has been closed, or it has broken.
public javax.management.MBeanServerConnection	getMBeanServerConnection(javax.security.auth.Subject delegationSubject) Returns an MBeanServerConnection object representing a remote MBean server on which operations are performed on behalf of the supplied delegation subject. For a given JMXConnector and Subject, two successful calls to this method will usually return the same MBeanServerConnection object, though this is not required. For each method in the returned MBeanServerConnection, calling the method causes the corresponding method to be called in the remote MBean server on behalf of the given delegation subject instead of the authenticated subject. The value returned by the MBean server method is the value returned to the client. If the MBean server method produces an Exception, the same Exception is seen by the client. If the MBean server method, or the attempt to call it, produces an Error, the Error is wrapped in a {@link JMXServerErrorException}, which is seen by the client. param delegationSubject the Subject on behalf of which requests will be performed. Can be null, in which case requests will be performed on behalf of the authenticated Subject, if any. return an object that implements the MBeanServerConnection interface by forwarding its methods to the remote MBean server on behalf of a given delegation subject. exception IOException if a valid MBeanServerConnection cannot be created, for instance because the connection to the remote MBean server has not yet been established (with the {@link #connect(Map) connect} method), or it has been closed, or it has broken.
public void	removeConnectionNotificationListener(javax.management.NotificationListener listener) Removes a listener from the list to be informed of changes in status. The listener must previously have been added. If there is more than one matching listener, all are removed. param listener a listener to receive connection status notifications. exception NullPointerException if listener is null. exception ListenerNotFoundException if the listener is not registered with this JMXConnector. see #removeConnectionNotificationListener(NotificationListener, NotificationFilter, Object) see #addConnectionNotificationListener see NotificationEmitter#removeNotificationListener
public void	removeConnectionNotificationListener(javax.management.NotificationListener l, javax.management.NotificationFilter f, java.lang.Object handback) Removes a listener from the list to be informed of changes in status. The listener must previously have been added with the same three parameters. If there is more than one matching listener, only one is removed. param l a listener to receive connection status notifications. param f a filter to select which notifications are to be delivered to the listener. Can be null. param handback an object to be given to the listener along with each notification. Can be null. exception ListenerNotFoundException if the listener is not registered with this JMXConnector, or is not registered with the given filter and handback. see #removeConnectionNotificationListener(NotificationListener) see #addConnectionNotificationListener see NotificationEmitter#removeNotificationListener