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https://issues.apache.org/jira/browse/HBASE-15879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15312709#comment-15312709
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stack commented on HBASE-15879:
-------------------------------

Key Interface can't be contingent on row/cf/q/ts all being contiguous. It will 
be too hard to reason about (IMO)

> Introduce Key interface
> -----------------------
>
>                 Key: HBASE-15879
>                 URL: https://issues.apache.org/jira/browse/HBASE-15879
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>         Attachments: HBASE-15879.patch
>
>
> Introduce an interface called Key and allow Cell implementations to implement 
> this Key interface for cases like KeyValue, OffheapKeyValue and DBE cells 
> (Except prefix tree) so that we can avoid copies when we deal with only Cells 
> in case of block index creations (like ROOT, Bloom etc). Helps in reduction 
> of garbage also. 



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