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/*
 * @author    IBM Corp.
 *
 * Copyright IBM Corp. 1999-2000.  All rights reserved.
 */

package javax.management.modelmbean;

import javax.management.DynamicMBean;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.PersistentMBean;
import javax.management.RuntimeOperationsException;


This interface must be implemented by the ModelMBeans. An implementation of this interface
must be shipped with every JMX Agent.


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.

Since:1.5
/**
 * This interface must be implemented by the ModelMBeans. An implementation of this interface
 * must be shipped with every JMX Agent.
 * <P>
 * 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.
 * <P>
 * 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.
 * <P>
 * 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.
 *
 * @since 1.5
 */

public interface ModelMBean extends
         DynamicMBean,
         PersistentMBean,
         ModelMBeanNotificationBroadcaster
{

        
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.


Once the ModelMBean's ModelMBeanInfo (with Descriptors) are
customized and set on the ModelMBean, the  ModelMBean can be
registered with the MBeanServer.

 If the ModelMBean is currently registered, this method throws a RuntimeOperationsException wrapping an IllegalStateException 
Params:
  • inModelMBeanInfo – The ModelMBeanInfo object to be used
       by the ModelMBean.
Throws:
/**
         * 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.
         * <br>
         * Once the ModelMBean's ModelMBeanInfo (with Descriptors) are
         * customized and set on the ModelMBean, the  ModelMBean can be
         * registered with the MBeanServer.
         * <P>
         * If the ModelMBean is currently registered, this method throws
         * a {@link javax.management.RuntimeOperationsException} wrapping an
         * {@link IllegalStateException}
         *
         * @param inModelMBeanInfo The ModelMBeanInfo object to be used
         *        by the ModelMBean.
         *
         * @exception MBeanException Wraps a distributed communication
         *        Exception.
         * @exception RuntimeOperationsException
         * <ul><li>Wraps an {@link IllegalArgumentException} if
         *         the MBeanInfo passed in parameter is null.</li>
         *     <li>Wraps an {@link IllegalStateException} if the ModelMBean
         *         is currently registered in the MBeanServer.</li>
         * </ul>
         *
         **/
        public void setModelMBeanInfo(ModelMBeanInfo inModelMBeanInfo)
            throws MBeanException, RuntimeOperationsException;

        
Sets the instance handle of the object against which to
execute all methods in this ModelMBean management interface
(MBeanInfo and Descriptors).

Params:
  • mr – Object that is the managed resource
  • mr_type – 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.
Throws:
/**
         * Sets the instance handle of the object against which to
         * execute all methods in this ModelMBean management interface
         * (MBeanInfo and Descriptors).
         *
         * @param mr Object that is the managed resource
         * @param mr_type 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.
         *
         *
         * @exception MBeanException The initializer of the object has thrown an exception.
         * @exception RuntimeOperationsException Wraps an IllegalArgumentException:
         *       The managed resource type passed in parameter is null.
         * @exception InstanceNotFoundException The managed resource object could not be found
         * @exception InvalidTargetObjectTypeException The managed resource type cannot be processed by the
         * ModelMBean or JMX Agent.
         */
        public void setManagedResource(Object mr, String mr_type)
        throws MBeanException, RuntimeOperationsException,
                 InstanceNotFoundException, InvalidTargetObjectTypeException ;

}