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From "Matt Massie (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AVRO-172) Don't include value class data/methods in each instance of a value
Date Tue, 27 Oct 2009 17:48:59 GMT

     [ https://issues.apache.org/jira/browse/AVRO-172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt Massie updated AVRO-172:
-----------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

------------------------------------------------------------------------
r830265 | massie | 2009-10-27 10:47:55 -0700 (Tue, 27 Oct 2009) | 2 lines

AVRO-172. Don't include value class data/methods in each instance of a value when processing
schemas.


> Don't include value class data/methods in each instance of a value
> ------------------------------------------------------------------
>
>                 Key: AVRO-172
>                 URL: https://issues.apache.org/jira/browse/AVRO-172
>             Project: Avro
>          Issue Type: Improvement
>          Components: c
>    Affects Versions: 1.0.0, 1.1.0, 1.2.0
>            Reporter: Matt Massie
>            Assignee: Matt Massie
>             Fix For: 1.2.1, 1.3.0
>
>         Attachments: AVRO-172.patch
>
>   Original Estimate: 4h
>          Time Spent: 4h
>  Remaining Estimate: 0h
>
> This patch is in response to Thiru's feedback about the current C implementation.  Thanks,
Thiru!  I appreciate the feedback.
> Previously, all instances of an Avro value contained class-specific data and methods
(e.g. callbacks for reading, skipping and writing data).  This is inefficient and unnecessary.
> This patch creates a per value class registry to hold all class-wide information.
> Moreover, this patch creates the framework necessary for support the Avro JSON import/export
format.  Each value class registers all supported data formats (named AVRO_BINARY_FORMAT and
AVRO_JSON_IMPORT_EXPORT_FORMAT).  The current JSON parser is a DOM-like parser which is really
only suitable for process schema data.  The callbacks registered in the value class registry
will allow us to process JSON data in a SAX-link fashion moving forward.

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