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https://issues.apache.org/jira/browse/DERBY-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12571969#action_12571969
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Dibyendu Majumdar commented on DERBY-3424:
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Hi,
Can the Management class be placed in o.a.d.iapi.services.monitor, instead of
o.a.d.mbeans ?
I am looking at this purely from module dependency point of view. I am trying
to untangle a cyclical dependency between a.o.d.iapi.services.info,
a.o.d.iapi.services.monitor, and a.o.d.mbeans. The info package depends upon
mbeans. monitor package depends upon info. And because of the Management class,
the mbeans package depends upon monitor.
By moving the Management class into the monitor package, this cycle will be
broken.
Is this possible?
Thanks
> Add an MBean that an application can register to change the state of Derby's
> JMX management
> -------------------------------------------------------------------------------------------
>
> Key: DERBY-3424
> URL: https://issues.apache.org/jira/browse/DERBY-3424
> Project: Derby
> Issue Type: New Feature
> Components: JMX
> Reporter: Daniel John Debrunner
> Assignee: Daniel John Debrunner
> Priority: Minor
>
> JMX in Derby was originally proposed as a mechanism to configure Derby
> replacing or enhancing the system properties which tend to be static in
> nature. Thus it is somewhat ironic that jmx is enabled with a static system
> property derby.system.jmx.
> I propose to add a public mbean that allows the state Derby's JMX management
> to be changed. This bean is not automatically registered by Derby if
> derby.system.jmx is false, but instead can be registered by an application. I
> believe this could occur at any time so that JMX could be enabled on a
> running application, possibly by a remote client.
> This standard Mbean (o.a.d.mbeans.Management & ManagementMBean) would have
> these operations & attribute:
> public boolean isManagementActive();
> public void startManagement();
> public void stopManagement();
> If Derby is not booted within the jvm then the operations would be no-ops.
> If derby.system.jmx is true then Derby will itself register an mbean that
> implements ManagementMBean to allow dynamic control of the visibility of
> Derby's mbeans.
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