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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16225) Refactor ScanQueryMatcher
Date Wed, 27 Jul 2016 02:06:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15394932#comment-15394932

Duo Zhang commented on HBASE-16225:

[~apurtell] [~stack] Let's finish this issue if you guys do not have much concerns? This is
only a refactoring, not a new feature. As said above, lots of new stuffs need this issue to
be resolved.


> Refactor ScanQueryMatcher
> -------------------------
>                 Key: HBASE-16225
>                 URL: https://issues.apache.org/jira/browse/HBASE-16225
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>         Attachments: HBASE-16225-v1.patch, HBASE-16225-v2.patch, HBASE-16225-v3.patch,
> As said in HBASE-16223, the code of {{ScanQueryMatcher}} is too complicated. I suggest
that we can abstract an interface and implement several sub classes which separate different
logic into different implementations. For example, the requirements of compaction and user
scan are different, now we also need to consider the logic of user scan even if we only want
to add a logic for compaction. And at least, the raw scan does not need a query matcher...
we can implement a dummy query matcher for it.
> Suggestions are welcomed. Thanks.

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