[
https://issues.apache.org/jira/browse/HBASE-7692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13584720#comment-13584720
]
Nick Dimiduk commented on HBASE-7692:
-------------------------------------
This implementation is mostly a superset of functionality described/requested
in HBASE-7221. The example provided in that ticket's description is implemented
using orderly like so:
{code}
StructRowKey rowkey = new StructBuilder()
.add(new FixedByteArrayRowKey(16))
.add(new LongRowKey())
.toRowKey();
byte[] bytes = rowkey.serialize(new Object[] { a, b });
{code}
In this case, the hash operation must be supplied by the user.
Consuming the serialized bytes is pretty easy too. Here's an example of basic
iteration:
{code}
rowkey.iterateOver(bytes);
for (Object f : rowkey) {
System.out.println(f);
}
{code}
The attached patches includes a number of
[examples|https://github.com/ndimiduk/hbase/tree/7692-ordered-serialization/hbase-examples/src/main/java/org/apache/hadoop/hbase/orderly].
(cc [~dmeil], [~lhofhansl])
> Add utility class to generate ordered byte[] serialization
> ----------------------------------------------------------
>
> Key: HBASE-7692
> URL: https://issues.apache.org/jira/browse/HBASE-7692
> Project: HBase
> Issue Type: Improvement
> Components: util
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Attachments: HBASE-7692.v1.patch, HBASE-7692.v2.patch,
> HBASE-7692.v3.patch, HBASE-7692.v4.patch
>
>
> The current Bytes utility class works, but produces output that does not
> maintain the native sort ordering of the input value. This results in, for
> example, a negative value that does not necessarily sort before a positive
> value. HBase should provide a canonical implementation of such a
> serialization format so that third-parties can reliably build on top of
> HBase. This will allow an implementation for HIVE-3634, HIVE-2599, or
> HIVE-2903 that is compatible with similar features in Pig.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
