Java resources wishing to be manageable instantiate the ModelMBean using the MBeanServer's createMBean method. The resource then sets the ModelMBeanInfo (with Descriptors) for the ModelMBean instance. The attributes and operations exposed via the ModelMBeanInfo for the ModelMBean are accessible from MBeans, connectors/adaptors like other MBeans. Through the ModelMBeanInfo Descriptors, values and methods in the managed application can be defined and mapped to attributes and operations of the ModelMBean. This mapping can be defined during development in an XML formatted file or dynamically and programmatically at runtime.
Every ModelMBean which is instantiated in the MBeanServer becomes manageable: its attributes and operations become remotely accessible through the connectors/adaptors connected to that MBeanServer. A Java object cannot be registered in the MBeanServer unless it is a JMX compliant MBean. By instantiating a ModelMBean, resources are guaranteed that the MBean is valid.
MBeanException and RuntimeOperationsException must be thrown on every public method. This allows for wrapping exceptions from distributed communications (RMI, EJB, etc.). These exceptions do not have to be thrown by the implementation except in the scenarios described in the specification and javadoc.
Modifier and Type | Method and Description |
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public void | setManagedResource(Object
Object that is the managed resource mr, String The type of reference for the managed resource. Can be: ObjectReference,
Handle, IOR, EJBHandle, RMIReference.
If the MBeanServer cannot process the mr_type passed in, an InvalidTargetTypeException
will be thrown. mr_type)Sets the instance handle of the object against which to execute all methods in this ModelMBean management interface (MBeanInfo and Descriptors). |
public void | setModelMBeanInfo(ModelMBeanInfo
The ModelMBeanInfo object to be used
by the ModelMBean. inModelMBeanInfo)Initializes a ModelMBean object using ModelMBeanInfo passed in. This method makes it possible to set a customized ModelMBeanInfo on the ModelMBean as long as it is not registered with the MBeanServer. |
setManagedResource | back to summary |
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public void setManagedResource(Object mr, String mr_type) throws MBeanException, RuntimeOperationsException, InstanceNotFoundException, InvalidTargetObjectTypeException Sets the instance handle of the object against which to execute all methods in this ModelMBean management interface (MBeanInfo and Descriptors).
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setModelMBeanInfo | back to summary |
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public void setModelMBeanInfo(ModelMBeanInfo inModelMBeanInfo) throws MBeanException, RuntimeOperationsException Initializes a ModelMBean object using ModelMBeanInfo passed in.
This method makes it possible to set a customized ModelMBeanInfo on
the ModelMBean as long as it is not registered with the MBeanServer.
If the ModelMBean is currently registered, this method throws
a
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