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https://issues.apache.org/jira/browse/HBASE-2209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12831860#action_12831860
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Kay Kay commented on HBASE-2209:
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declaredClass == List.class does not make sense. it should rely on
Class.isSubClass / similar type inference model.
> Support of List [ ] in HBaseOutputWritable for serialization
> -------------------------------------------------------------
>
> Key: HBASE-2209
> URL: https://issues.apache.org/jira/browse/HBASE-2209
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Kay Kay
> Fix For: 0.21.0
>
> Attachments: HBASE-2209.patch
>
>
> On a higher language semantics , List < > are very useful for manipulation
> and when finally sent down to the wire - the protocol currently seems to take
> only [ ] through an expensive copy.
> Supporting List <T > directly would save us the copy in terms of memory and
> add to faster / deserialization.
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