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Introducing MBeans
Standard MBeans
MXBeans
Trail: Java Management Extensions (JMX)
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Lesson: Introducing MBeans

> This lesson introduces the fundamental concept of the JMX API, namely managed beans, or MBeans.

> An MBean is a managed Java object, similar to a JavaBeans component, that follows the design patterns set forth in the JMX specification. An MBean can represent a device, an application, or any resource that needs to be managed. MBeans expose a management interface that consists of the following:

> - A set of readable or writable attributes, or both.
> - A set of invokable operations.
> - A self-description.

> The management interface does not change throughout the life of an MBean instance. MBeans can also emit notifications when certain predefined events occur.

> The JMX specification defines five types of MBean:

> - Standard MBeans
> - Dynamic MBeans
> - Open MBeans
> - Model MBeans
> - MXBeans

> The examples in this trail demonstrate only the simplest types of MBean, namely standard MBeans and MXBeans.

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