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https://issues.apache.org/jira/browse/HBASE-5548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226747#comment-13226747
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Jesse Yates commented on HBASE-5548:
------------------------------------
{code}
+ #define the command name in 'where' namespace
+ #which actually just delegates to the shell instance
{code}
The 'where' namespace is just the variable name, which in our case is the IRB
shell namespace. However, internally, hirb just has a reference to the an
instance of the Shell class, to which it is delegating all the calls. I'll fix
the commenting to make it clearer.
{code}
+ ret = translate_hbase_exceptions(*args) { command(*args) }
+ return ret
{code}
Yeah, that is just cruft from debugging, where I dumping some output in the
middle.
bq. I don't see table.help. Is it missing from this patch?
Yeah, completely forgot to implement it ;) I'll put it into the next version.
There are still some issues around hiding methods, since we do actually get
autocomplete, which is nice. I'm also working on a version that will format the
output (as opposed to the raw stuff we see from a scan below).
Here is what some shell output looks like with the current patch:
{code}
1.9.2-p290 :001 > create 't', 'f'
0 row(s) in 1.7060 seconds
1.9.2-p290 :002 > t = get_table 't'
0 row(s) in 0.0770 seconds
=> #<Hbase::Table:0x6c6742d0
@table=#<Java::OrgApacheHadoopHbaseClient::HTable:0x59046270>>
1.9.2-p290 :003 > t.put 'r', 'f', 'value'
1.9.2-p290 :004 > t.scan
=> {"r"=>{"f:"=>"timestamp=1331353365816, value=value"}}
{code}
> 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
>
>
> 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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