MBean Server Implementation and Factory

The MBeanServerImpl class in the Java DMK implements the MBeanServer interface. It is the class that will be instantiated in an agent. However, it is never instantiated directly by the agent application. Instead, you rely on the MBean server factory to return a new instance of the implementing class.

The MBeanServerFactory is a static class defined by the JMX specification that makes the agent application independent of the MBean server implementation. It resides in the Java virtual machine and centralizes all MBean server instantiation. The MBeanServerFactory class provides two static methods:

• createMBeanServer returns a new MBean server instance.

• findMBeanServer returns a list of MBean servers in the Java virtual machine.

You must use this class to create an MBean server so that other objects can obtain its reference by calling the findMBeanServer method. This method enables dynamically loaded objects to find the MBean server in an agent that has already been started.