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https://issues.apache.org/jira/browse/QPID-1766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chenta lee updated QPID-1766:
-----------------------------

    Attachment: selector_patch_20090922.diff

I forgot the add the header files before creating the new patch.

Actually I didn't use any new algorithm, I just follow the original algorithm 
(the one before apply the selector patch), and change a little implemetation 
detail. So I think it won't be a problem.
What do you mean by wrap-around the sequence number? It will be helpful if you 
could provide an example.

If I update the position property of consumer, it will be troublesome to 
requeue the message. 

> Implemention of selector using Xquery
> -------------------------------------
>
>                 Key: QPID-1766
>                 URL: https://issues.apache.org/jira/browse/QPID-1766
>             Project: Qpid
>          Issue Type: Improvement
>          Components: C++ Broker, C++ Client
>         Environment: Linux
>            Reporter: chenta lee
>         Attachments: chenta.diff, Makefile.patch, Makefile.patch, 
> message_selector_pytest.patch, prime_number.diff, selector.diff, 
> selector.diff, selector.patch, selector.patch, selector_broker.patch, 
> selector_client.patch, selector_client.patch, selector_example.zip, 
> selector_new.diff, selector_patch_20090922.diff, selector_pytest.diff
>
>
> I implemented the message selector for C++ broker and client using Xquery.
> I will attach an example later.

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