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https://issues.apache.org/jira/browse/HBASE-7221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13586559#comment-13586559
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Nick Dimiduk commented on HBASE-7221:
-------------------------------------
Orderly, via HBASE-7692, does provide a similar builder interface. However, as
I mentioned in my
[example|https://issues.apache.org/jira/browse/HBASE-7692?focusedCommentId=13584720&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13584720],
it doesn't implement any hashing strategies for the user. It also provides for
specifying the order of serialized results.
> 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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