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From "Robbie Gemmell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-3026) The ApplicationRegistry object should be a singleton
Date Thu, 07 Jul 2011 15:03:16 GMT

    [ https://issues.apache.org/jira/browse/QPID-3026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13061370#comment-13061370
] 

Robbie Gemmell commented on QPID-3026:
--------------------------------------

Keith and I have been working on this together as discussed on the mailing list previously.
It is being attached here to grant the appropriate permissions for inclusion.

> The ApplicationRegistry object should be a singleton
> ----------------------------------------------------
>
>                 Key: QPID-3026
>                 URL: https://issues.apache.org/jira/browse/QPID-3026
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Java Broker
>    Affects Versions: 0.9
>            Reporter: Andrew Kennedy
>            Assignee: Robbie Gemmell
>            Priority: Minor
>             Fix For: 0.11
>
>         Attachments: 0005-QPID-3026-remove-incomplete-support-for-multiple-App.patch
>
>
> The ApplicationRegistry can currently have multiple instances, in order to cater for
multiple brokers in the same VM. However, *many* parts of the code simply call ApplcationRegistry.getInstance()
to obtain a reference, meaning multiple instances are ignored. The only time this is ever
useful is for certain types of tests, therefore the capability to have multiple broker instances
should be removed.
> Any tests that require multiple brokers can start a VM broker and an external, or two
external brokers. In general, test-only code should not be made available to the rest of the
application.

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