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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13977) Convert getKey and related APIs to Cell
Date Wed, 01 Jul 2015 06:50:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609640#comment-14609640

ramkrishna.s.vasudevan commented on HBASE-13977:

bq.Directly make the Cell out of current.keyBuffer? Do we need to clone that (if so also byte[]
copy and create KV)?
I think it is better we copy it.  Now we are using this API mainly in two places getFirstKey
and getLastKey.  The getFirstKey is getting used as an instance in HalfStorefileReader (firstKey).
So better to copy and use it and also it is one time operation.
bq.Instead of cloneRow can pass lastKV.getRowArray, offset and length and make KV?
I updated and changed the patch according to the comment.  Here it makes sense because we
are forming the lastKV and firstKV from the getLastKey and getFirstKey API. The getLastKey
and getFirstKey has done a copy and so there is no need to do another clone and again make
the KV constructor to do a copy.  
The IllegalArgException I have not changed in this patch. 

> Convert getKey and related APIs to Cell
> ---------------------------------------
>                 Key: HBASE-13977
>                 URL: https://issues.apache.org/jira/browse/HBASE-13977
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>         Attachments: HBASE-13977.patch, HBASE-13977_1.patch, HBASE-13977_2.patch, HBASE-13977_3.patch
> During the course of changes for HBASE-11425 felt that more APIs can be converted to
return Cell instead of BB like getKey, getLastKey. 
> We can also rename the getKeyValue to getCell.

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