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From "Jesse Yates (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5548) Add ability to get a table in the shell
Date Mon, 12 Mar 2012 22:14:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13227975#comment-13227975
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Jesse Yates commented on HBASE-5548:
------------------------------------

bq. get 'tablename', 'yadda', 'yadda'....

Yeah, nothing changes there. In fact, scan (which is the only change that patch introduces)
still will work exactly the same way. Same deal for doing something like t.scan

bq. On get_table, should it just be table? 'status' dumps out status, 'version', dumps out
'version'. Maybe it should stay get_table, because it returns something you can catch into
a variable?

I was thinking it should stay get_table since table will be clutter the overall naming a little
(Table is also the name of the ::Hbase::Table class) and yeah, it implies holding a reference,
which _all_ the other commands don't give you. I would imagine doing 
{code}
t = table 't1'
{code}
as actually creating the table if it doesn't exist, or just getting a reference to it (similar
to how 'create' works in the latest patch). A follow-on patch would be nice there.

I want to think about the 'right' way to do the extension of ::Hbase::Table, rather than this
piecemeal, method-by-method, decentralized increase. Also, adding the same type of system
for put, get, delete, etc would be nice. But, yeah, close! 
                
> Add ability to get a table in the shell
> ---------------------------------------
>
>                 Key: HBASE-5548
>                 URL: https://issues.apache.org/jira/browse/HBASE-5548
>             Project: HBase
>          Issue Type: Improvement
>          Components: shell
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>             Fix For: 0.96.0
>
>         Attachments: ruby_HBASE-5528-v0.patch, ruby_HBASE-5548-v1.patch
>
>
> Currently, all the commands that operate on a table in the shell first have to take the
table as name as input. 
> There are two main considerations:
> * It is annoying to have to write the table name every time, when you should just be
able to get a reference to a table
> * the current implementation is very wasteful - it creates a new HTable for each call
(but reuses the connection since it uses the same configuration)
> We should be able to get a handle to a single HTable and then operate on that.

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