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From "Carter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11679) Replace "HTable" with "HTableInterface" where backwards-compatible
Date Thu, 04 Sep 2014 22:04:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14122060#comment-14122060
] 

Carter commented on HBASE-11679:
--------------------------------

Okey doke.  It's going to be easier to just redo the patch.  IntelliJ makes this refactor
a breeze, so I'm also refactoring for {{RegionLocator}} and the {{Admin}} interface.

After running the tests and a manual review of the diff, I'll upload the new patch.


> Replace "HTable" with "HTableInterface" where backwards-compatible
> ------------------------------------------------------------------
>
>                 Key: HBASE-11679
>                 URL: https://issues.apache.org/jira/browse/HBASE-11679
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Carter
>            Assignee: Carter
>         Attachments: HBASE_11679.patch, HBASE_11679.patch, HBASE_11679_v3.patch
>
>
> This is a refactor to move more of the code towards using interfaces for proper encapsulation
of logic.
> The amount of code touched is large, but it should be fairly easy to review.  It changes
variable declarations from HTable to HTableInterface where the following holds:
> # The declaration being updated won't break assignment
> # The declaration change does not break the compile (eg trying to access non-interface
methods)
> The two main situations are to change something like this:
> {code}
> HTable h = new HTable(c, tn);
> {code}
> to
> {code}
> HTableInterface h = new HTable(c, tn);
> {code}
> and this:
> {code}
> public void doSomething(HTable h) { ... }
> {code}
> to this:
> {code}
> public void doSomething(HTableInterface h) { ... }
> {code}
> This gets most of the obvious cases out of the way and prepares for more complicated
interface refactors in the future.  In method signatures, I changed parameters, but did _not_
change any public or protected method return values, since that would violate criteria #1
above and break compatibility.



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