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package javax.management;

import com.sun.jmx.mbeanserver.JmxMBeanServer;


This class represents a builder that creates a default MBeanServer implementation. The JMX MBeanServerFactory allows applications to provide their custom MBeanServer implementation by providing a subclass of this class.


See Also:
Since:1.5
/**
 * <p>This class represents a builder that creates a default
 * {@link javax.management.MBeanServer} implementation.
 * The JMX {@link javax.management.MBeanServerFactory} allows
 * applications to provide their custom MBeanServer
 * implementation by providing a subclass of this class.</p>
 *
 * @see MBeanServer
 * @see MBeanServerFactory
 *
 * @since 1.5
 */
public class MBeanServerBuilder {
    
Public default constructor.

/**
     * Public default constructor.
     **/
    public MBeanServerBuilder() {
    }

    
This method creates a new MBeanServerDelegate for a new MBeanServer. When creating a new MBeanServer the MBeanServerFactory first calls this method in order to create a new MBeanServerDelegate. 
Then it calls
newMBeanServer(defaultDomain,outer,delegate)
passing the delegate that should be used by the MBeanServer
implementation.

Note that the passed delegate might not be directly the
MBeanServerDelegate that was returned by this method. It could
be, for instance, a new object wrapping the previously
returned object.

Returns:A new MBeanServerDelegate.
/**
     * This method creates a new MBeanServerDelegate for a new MBeanServer.
     * When creating a new MBeanServer the
     * {@link javax.management.MBeanServerFactory} first calls this method
     * in order to create a new MBeanServerDelegate.
     * <br>Then it calls
     * <code>newMBeanServer(defaultDomain,outer,delegate)</code>
     * passing the <var>delegate</var> that should be used by the MBeanServer
     * implementation.
     * <p>Note that the passed <var>delegate</var> might not be directly the
     * MBeanServerDelegate that was returned by this method. It could
     * be, for instance, a new object wrapping the previously
     * returned object.
     *
     * @return A new {@link javax.management.MBeanServerDelegate}.
     **/
    public MBeanServerDelegate newMBeanServerDelegate() {
        return JmxMBeanServer.newMBeanServerDelegate();
    }

    
This method creates a new MBeanServer implementation object. When creating a new MBeanServer the MBeanServerFactory first calls newMBeanServerDelegate() in order to obtain a new MBeanServerDelegate for the new MBeanServer. Then it calls newMBeanServer(defaultDomain,outer,delegate)
passing the delegate that should be used by the MBeanServer
implementation.

Note that the passed delegate might not be directly the
MBeanServerDelegate that was returned by this implementation. It could
be, for instance, a new object wrapping the previously
returned delegate.

The outer parameter is a pointer to the MBeanServer that should be passed to the MBeanRegistration interface when registering MBeans inside the MBeanServer. If outer is null, then the MBeanServer
implementation must use its own this reference when invoking the MBeanRegistration interface. 
This makes it possible for a MBeanServer implementation to wrap
another MBeanServer implementation, in order to implement, e.g,
security checks, or to prevent access to the actual MBeanServer
implementation by returning a pointer to a wrapping object.

Params:
  • defaultDomain – Default domain of the new MBeanServer.
  • outer – A pointer to the MBeanServer object that must be passed to the MBeans when invoking their MBeanRegistration interface.
  • delegate – A pointer to the MBeanServerDelegate associated
       with the new MBeanServer. The new MBeanServer must register
       this MBean in its MBean repository.
Returns:A new private implementation of an MBeanServer.
/**
     * This method creates a new MBeanServer implementation object.
     * When creating a new MBeanServer the
     * {@link javax.management.MBeanServerFactory} first calls
     * <code>newMBeanServerDelegate()</code> in order to obtain a new
     * {@link javax.management.MBeanServerDelegate} for the new
     * MBeanServer. Then it calls
     * <code>newMBeanServer(defaultDomain,outer,delegate)</code>
     * passing the <var>delegate</var> that should be used by the MBeanServer
     * implementation.
     * <p>Note that the passed <var>delegate</var> might not be directly the
     * MBeanServerDelegate that was returned by this implementation. It could
     * be, for instance, a new object wrapping the previously
     * returned delegate.
     * <p>The <var>outer</var> parameter is a pointer to the MBeanServer that
     * should be passed to the {@link javax.management.MBeanRegistration}
     * interface when registering MBeans inside the MBeanServer.
     * If <var>outer</var> is <code>null</code>, then the MBeanServer
     * implementation must use its own <code>this</code> reference when
     * invoking the {@link javax.management.MBeanRegistration} interface.
     * <p>This makes it possible for a MBeanServer implementation to wrap
     * another MBeanServer implementation, in order to implement, e.g,
     * security checks, or to prevent access to the actual MBeanServer
     * implementation by returning a pointer to a wrapping object.
     *
     * @param defaultDomain Default domain of the new MBeanServer.
     * @param outer A pointer to the MBeanServer object that must be
     *        passed to the MBeans when invoking their
     *        {@link javax.management.MBeanRegistration} interface.
     * @param delegate A pointer to the MBeanServerDelegate associated
     *        with the new MBeanServer. The new MBeanServer must register
     *        this MBean in its MBean repository.
     *
     * @return A new private implementation of an MBeanServer.
     **/
    public MBeanServer newMBeanServer(String              defaultDomain,
                                      MBeanServer         outer,
                                      MBeanServerDelegate delegate) {
        // By default, MBeanServerInterceptors are disabled.
        // Use com.sun.jmx.mbeanserver.MBeanServerBuilder to obtain
        // MBeanServers on which MBeanServerInterceptors are enabled.
        return JmxMBeanServer.newMBeanServer(defaultDomain,outer,delegate,
                                             false);
    }
}