| java.lang.Object
 javax.management.MBeanServerInvocationHandler
| MBeanServerInvocationHandler | | public class MBeanServerInvocationHandler implements InvocationHandler(Code) | |
java.lang.reflect.InvocationHandler that forwards methods in an MBean's
management interface through the MBean server to the MBean.
Given an
MBeanServerConnection , the
ObjectName of an MBean within that MBean server, and a Java interface
Intf that describes the management interface of the
MBean using the patterns for a Standard MBean, this class can be
used to construct a proxy for the MBean. The proxy implements
the interface Intf such that all of its methods are
forwarded through the MBean server to the MBean.
If you have an MBean server mbs containing an MBean
with
ObjectName name, and if the MBean's
management interface is described by the Java interface
Intf, you can construct a proxy for the MBean like
this:
Intf proxy = (Intf)
MBeanServerInvocationHandler.
MBeanServerInvocationHandler.newProxyInstance newProxyInstance (mbs,
name,
Intf.class,
false);
Suppose, for example, Intf looks like this:
public interface Intf {
public String getSomeAttribute();
public void setSomeAttribute(String value);
public void someOperation(String param1, int param2);
}
Then you can execute:
If the last parameter to
MBeanServerInvocationHandler.newProxyInstancenewProxyInstance is true, then the MBean is assumed
to be a
NotificationBroadcaster or
NotificationEmitter and the returned proxy will implement
NotificationEmitter . A call to
NotificationBroadcaster.addNotificationListener on the proxy will
result in a call to
MBeanServerConnection.addNotificationListener(ObjectNameNotificationListenerNotificationFilterObject) , and likewise
for the other methods of
NotificationBroadcaster and
NotificationEmitter .
The methods
Object.toString ,
Object.hashCode ,
and
Object.equals(Object) , when invoked on a proxy using
this invocation handler, are forwarded to the MBean server as
methods on the proxied MBean. This will only work if the MBean
declares those methods in its management interface.
since:
JMX 1.2
author:
Young Yang |
| MBeanServerInvocationHandler | | public MBeanServerInvocationHandler(MBeanServerConnection connection, ObjectName objectName, boolean isNotificationBroadcaster)(Code) | | Invocation handler that forwards methods through an MBean
server. This constructor may be called instead of relying on
MBeanServerInvocationHandler.newProxyInstance , for instance if you need to supply a
different
ClassLoader to
Proxy.newProxyInstance Proxy.newProxyInstance .
Parameters:
connection - the MBean server connection through which allmethods of a proxy using this handler will be forwarded.
Parameters:
objectName - the name of the MBean within the MBean serverto which methods will be forwarded. |
| newProxyInstance | | public static Object newProxyInstance(MBeanServerConnection connection, ObjectName objectName, Class interfaceClass, boolean isNotificationBroadcaster)(Code) | | Return a proxy that implements the given interface by
forwarding its methods through the given MBean server to the
named MBean.
This method is equivalent to
Proxy.newProxyInstanceProxy.newProxyInstance (interfaceClass.getClassLoader(),
interfaces, handler). Here handler is the
result of
MBeanServerInvocationHandler.MBeanServerInvocationHandler newMBeanServerInvocationHandler(connection, objectName) , and
interfaces is an array that has one element if
isNotificationBroadcaster is false and two if it is
true. The first element of interfaces is
interfaceClass and the second, if present, is
NotificationEmitter.class.
Parameters:
connection - the MBean server to forward to.
Parameters:
objectName - the name of the MBean withinconnection to forward to.
Parameters:
interfaceClass - the management interface that the MBeanexports, which will also be implemented by the returned proxy.
Parameters:
isNotificationBroadcaster - make the returned proxyimplement NotificationEmitter by forwarding its methodsvia connection. the new proxy instance. |
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