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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-626) Use Visitor pattern in MetaRegion to reduce code clones in HTable and HConnectionManager
Date Tue, 20 May 2008 14:34:55 GMT

     [ https://issues.apache.org/jira/browse/HBASE-626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Daniel Cryans updated HBASE-626:
-------------------------------------

    Attachment: hbase-626-v3.patch

Please review.

NINES restored. Cleaned up comments. Passes tests, all is well in UI.

> Use Visitor pattern in MetaRegion to reduce code clones in HTable and HConnectionManager
> ----------------------------------------------------------------------------------------
>
>                 Key: HBASE-626
>                 URL: https://issues.apache.org/jira/browse/HBASE-626
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: master
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Minor
>             Fix For: 0.2.0
>
>         Attachments: hbase-626-v1.patch, hbase-626-v2.patch, hbase-626-v3.patch
>
>
> HTable and HConnectionManager.TableServers both scan the meta region in the same way
(but the later also retry one time if it fails). A Visitor pattern should be used in a new
scanning method in MetaRegion to accept visitors that gather information such as region names
for a table or the list of all tables.

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