Chapter 7. JMX Agent Services
Agent services are MBeans that are distinguished from other MBeans that represent managed resources by the roles they play and functions they provide rather than by the interfaces they support. A service's role may be management oriented; for example, monitoring attribute values is an obvious management-oriented service that is supported in JMX by the monitor agent services described in Chapter 6. Another management-oriented service is a status aggregator that examines the status of a set of related MBeans to determine the status of a higher-level MBean in an application. Alternatively, an agent service may play a more utilitarian role, like the XML service described in Chapter 4 that supports management applications by instantiating model MBeans from an XML file and persisting model MBeans to an XML file. In this chapter we describe the JMX agent services that must be provided by every JMX implementation: the timer service, the MLet service, and the relation service. We also discuss the connector services that provide remote access to an otherwise local MBeanServer.
|
