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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13387) Add ByteBufferedCell an extension to Cell
Date Wed, 06 May 2015 06:14:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14530003#comment-14530003
] 

Anoop Sam John commented on HBASE-13387:
----------------------------------------

This will be a big patch. So I am planning to split into multiple tasks and make core code
ready for accepting BB backed cells.
- Make Tag as an interface impl way
- Deperecate filterRowKey(byte[] buffer, int offset, int length) in favor of filterRowKey(Cell
firstRowCell)
- Deprecate postScannerFilterRow CP hook with byte[],int,int args in favor of taking Cell
arg
- Change ColumnTracker methods to pass Cell instead of byte[], int, int for column.
- Remove CellComparator#compareRows(byte[], int, int, byte[], int,int)
- CellUtil  - More typed getters from Cell components (Like getRowAsInt, getValueAsLong etc)
.....

> Add ByteBufferedCell an extension to Cell
> -----------------------------------------
>
>                 Key: HBASE-13387
>                 URL: https://issues.apache.org/jira/browse/HBASE-13387
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver, Scanners
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>         Attachments: ByteBufferedCell.docx, WIP_HBASE-13387_V2.patch, WIP_ServerCell.patch
>
>
> This came in btw the discussion abt the parent Jira and recently Stack added as a comment
on the E2E patch on the parent Jira.
> The idea is to add a new Interface 'ByteBufferedCell'  in which we can add new buffer
based getter APIs and getters for position in components in BB.  We will keep this interface
@InterfaceAudience.Private.   When the Cell is backed by a DBB, we can create an Object implementing
this new interface.
> The Comparators has to be aware abt this new Cell extension and has to use the BB based
APIs rather than getXXXArray().  Also give util APIs in CellUtil to abstract the checks for
new Cell type.  (Like matchingXXX APIs, getValueAs<type> APIs etc)



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