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From "Matt Massie (JIRA)" <j...@apache.org>
Subject [jira] Work logged: (AVRO-172) Don't include value class data/methods in each instance of a value
Date Mon, 26 Oct 2009 21:44:59 GMT

     [ https://issues.apache.org/jira/browse/AVRO-172?page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#action_10925
]

Matt Massie logged work on AVRO-172:
------------------------------------

                Author: Matt Massie
            Created on: 26/Oct/09 09:43 PM
            Start Date: 26/Oct/09 09:43 PM
    Worklog Time Spent: 4h 

Issue Time Tracking
-------------------

            Time Spent: 4h
    Remaining Estimate: 0h  (was: 4h)

> 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
>             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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