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  1. JDK
  2. JDK-6299231

Add support for named MBean Servers

    Details

    • Type: Enhancement
    • Status: Closed
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 6
    • Fix Version/s: 7
    • Component/s: core-svc
    • Subcomponent:
    • Resolved In Build:
      b36
    • CPU:
      generic
    • OS:
      generic
    • Verification:
      Verified

      Description

      From ###@###.###:

      A named MBeanServer is an MBeanServer that has a name, and can be
      searched using that name. Duplicate names are not allowed.

      MBeanServerFactory.createNamedMBeanServer(String name, String domain)
      MBeanServerFactory.findNamedMBeanServer(String name)
      MBeanServerBuilder.newMBeanServer(String name, String domain,
      MBeanServer outer, MBeanServerDelegate delegate)

      may be added, since they're addition to existing classes (not
      interfaces).

      About asking the name to an MBeanServer, there may be these choices:

      1. Add getName() to MBeanServer interface
      2. Add getName() to MBeanServerDelegateMBean interface and
      implementation
      3. Subclass MBeanServerDelegateMBean adding getName()
      4. Add and register a new MBean, similar to the delegate, in the
      JMImplementation domain.

      Most of the mechanism may be hidden by
      MBeanServerFactory.findNamedMBeanServer(String name), though JSR 255 may
      be explicit in defining it (for example by mandating one of the above
      choices).

      This proposal will allow clients to easily distinguish MBeanServers in
      case multiple ones are created in a single JVM, and a human user of a
      management console to better understand the scope of the MBeanServer.

      For example, running Tomcat in J2SE 5 will result in 2 MBeanServer
      created, the platform's and Tomcat's.
      Programmatically, the only way to distinguish them is to perform some
      wild guess on the registered MBeans (yes, one can compare the results of
      MBeanServerFactory.findMBeanServer(null) with
      ManagementFactory.getPlatformMBeanServer(), but it's not general).
      If both are registered with a name, say "platform" and "tomcat", the job
      will be much easier.

      ###@###.### 2005-07-20 10:25:22 GMT

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              • Assignee:
                dfuchs Daniel Fuchs
                Reporter:
                emcmanus Eamonn McManus
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