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https://issues.apache.org/jira/browse/QPID-1284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12633223#action_12633223
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Ted Ross commented on QPID-1284:
--------------------------------

Andrea,

Bits in the presence mask are only assigned for optional properties.  Since the 
broker table has only one optional property (dataDir), only one bit is 
allocated in the bitmask.

-Ted


> QMan : Qpid JMX Management Bridge
> ---------------------------------
>
>                 Key: QPID-1284
>                 URL: https://issues.apache.org/jira/browse/QPID-1284
>             Project: Qpid
>          Issue Type: New Feature
>    Affects Versions: M3
>         Environment: J2SE 5, any OS that is supporting Java
>            Reporter: Andrea Gazzarini
>         Attachments: DomainModel.jpg, QMan.jar
>
>
> QMan is an application used for exposing via JMX the management domain model 
> of one or more remote brokers.
> Capabilities (the list is not complete) : 
> - Operates from a formally defined management schema;
> - Uses the AMQP protocol and its type system for communicating with remote 
> brokers;
> - Exposes via JMX the remote broker domain model: that means for each 
> connected broker QMan lets you see its domain model entities according to 
> their schema (attribute, methods, statistics and events). In addition, lets 
> you invoke operations on those entities.  
> - Multi broker management; 
> - It doesn't have prior knowledge of the management model of the system under 
> management. no definition is hard-coded and entity definitions (schema) are 
> requested and built "on demand";
> - Namespace separation between brokers : each connected broker can have a 
> different schema. 
> - JMX interface : QMan is itself a Management Bean and using JMX it exposes 
> its public interface (for example, to connect with a new broker). So at the 
> end it should be exposed via WS-DM, SMTP, RMI, etc...
>       

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