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package com.sun.enterprise.interceptor;

import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.InvalidAttributeValueException;
import javax.management.InstanceNotFoundException;
import javax.management.AttributeNotFoundException;
import javax.management.MBeanException;
import javax.management.ReflectionException;
import javax.management.InstanceNotFoundException;

/**
    Allows registration of MBeans dynamically for a restricted set of MBeanServer methods.
    These include:<br/>
    <ul>
    <li>isRegistered</li>
    <li>getClassLoaderFor</li>
    </ul>
    Other methods such as get/setAttribute(s) and invoke() are not supported.
 */
public interface DynamicInterceptorRegistrationHook
{
    /**
        Called when an MBean is not registered.  If desired, the MBean may be registered.
        Note that nothing precludes another thread from registering the specified MBean at any time,
        and thus registrationHook() could be called with the MBean already registered.
        @param MBeanServer  the MBeanServer in which the missing MBean should be registered
        @param ObjectName   the ObjectName of the non-registered MBean
        @return true if the MBean is now presnt.
     */
    public boolean   registrationHook( final MBeanServer server, final ObjectName objectName );
};