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From "Alex Rudyy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-8245) [Broker-J] [AMQP 0-8..0-91] Decode FieldTable fields on demand
Date Fri, 02 Nov 2018 10:34:00 GMT

     [ https://issues.apache.org/jira/browse/QPID-8245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Rudyy updated QPID-8245:
-----------------------------
    Attachment:     (was: 0002-QPID-8245-Add-factory-methods-to-create-field-table-.patch)

> [Broker-J] [AMQP 0-8..0-91] Decode FieldTable fields on demand
> --------------------------------------------------------------
>
>                 Key: QPID-8245
>                 URL: https://issues.apache.org/jira/browse/QPID-8245
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Broker-J
>    Affects Versions: qpid-java-broker-7.1.0
>            Reporter: Alex Rudyy
>            Assignee: Alex Rudyy
>            Priority: Major
>             Fix For: qpid-java-broker-7.1.0
>
>         Attachments: 0003-QPID-8245-Remove-FiledTable-setters-methods-modifyin.patch,
0004-QPID-8245-Decode-field-table-properties-when-require.patch, 0005-QPID-8245-Remove-methods-getXXX-in-order-to-simplify.patch,
0006-QPID-8245-some-code-clean-up.patch, 0007-QPID-8245-Change-decoding-to-decode-only-value-for-t.patch,
0008-QPID-8245-Dispose-QpidByteBuffer-on-decoding-FieldTa.patch
>
>
> At the moment all field table properties are decoded when decode functionality is invoked.
For use cases when only some of the field table properties are queried, the decoding functionality
can be changed to stop decoding on getting the requested property. Potentially, such approach
can improve the performance of routing transient messages when destinations are bound to the
routing exchange using selector filters. As filter expression contains only some properties,
the decoding of message headers can be stopped on getting all fields specified in selector
expression.
> The idea is illustrated by Rob Godfrey on [QPID-8238|https://issues.apache.org/jira/browse/QPID-8238?focusedCommentId=16601936&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16601936]



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