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From Andrzej Bialecki ...@getopt.org>
Subject Re: [jira] Commented: (HADOOP-1727) Make ...hbase.io.MapWritable more generic so that it can be included in ...hadoop.io
Date Fri, 17 Aug 2007 19:00:40 GMT
Jim Kellerman (JIRA) wrote:

>>> New class MapWritable replaces KeyedData and
>>> KeyedDataArrayWritable
>> There is already a class with this name in Nutch 
>> (org.apache.nutch.crawl.MapWritable), which serves basically the
>> same purpose, only it's able to hold instances of different classes
>> (both keys and values), and (de)serialize them efficiently. Is
>> there any chance to merge these two implementations?
> Absolutely. When we developed the version for HBase we were unaware
> of the Nutch class. When I asked Doug Cutting if he thought our
> MapWritable would be useful in Hadoop, he pointed me to the Nutch
> class and also suggested using RefllectionUtils, so that, indeed, is
> the plan.

Great! I'm pretty familiar with the implementation of this class, if you 
encounter any issues during the integration, feel free to ask me.

Best regards,
Andrzej Bialecki     <><
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