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https://issues.apache.org/jira/browse/HBASE-7221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13586516#comment-13586516
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Lars Hofhansl commented on HBASE-7221:
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Fair enough.
How does that relate to Nick's work on HBASE-7692? Do you see these as
complimentary?
We had way too much discussion for a feature like, and I apologize. Just seems
important to get this right. Having some kind of standard key-building facility
is essential for HBase (IMHO), and will lay the foundation for features layered
on top of HBase (such as 2ndary indexes, etc).
> RowKey utility class for rowkey construction
> --------------------------------------------
>
> Key: HBASE-7221
> URL: https://issues.apache.org/jira/browse/HBASE-7221
> Project: HBase
> Issue Type: Improvement
> Components: util
> Reporter: Doug Meil
> Assignee: Doug Meil
> Priority: Minor
> Attachments: HBASE_7221.patch, hbase-common_hbase_7221_2.patch,
> hbase-common_hbase_7221_v3.patch, hbase-common_hbase_7221_v4.patch,
> hbase-server_hbase_7221_v5.patch, hbase-server_hbase_7221_v6.patch
>
>
> A common question in the dist-lists is how to construct rowkeys, particularly
> composite keys. Put/Get/Scan specifies byte[] as the rowkey, but it's up to
> you to sensibly populate that byte-array, and that's where things tend to go
> off the rails.
> The intent of this RowKey utility class isn't meant to add functionality into
> Put/Get/Scan, but rather make it simpler for folks to construct said arrays.
> Example:
> {code}
> RowKey key = RowKey.create(RowKey.SIZEOF_MD5_HASH + RowKey.SIZEOF_LONG);
> key.addHash(a);
> key.add(b);
> byte bytes[] = key.getBytes();
> {code}
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