2.3.2 MBean Server Interceptors

As stated previously, the Java DMK does not require every MBean in a Java DMK agent to be represented by a Java object in that agent. MBean Server interceptors enable you to intercept operations on MBeans and handle them arbitrarily. Handling the operations can involve handing the request to other interceptors, possibly after logging or authenticating them for security. Alternatively, handling can involve processing the request directly. For example, with very volatile MBeans, direct handling avoids having to keep up with the creation and deletion of objects. Instead, the managed object is effectively synthesized when there is a request on it, which for volatile objects happens much less often than creation and deletion.

In Java DMK version 5.1, it is necessary to use the new JdmkMBeanServerBuilder class to add interceptor functionality. This can be done by specifying a Java system property. See the Java Dynamic Management Kit 5.1 Tutorial for details.