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https://issues.apache.org/jira/browse/HBASE-5357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216182#comment-13216182
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Phabricator commented on HBASE-5357:
------------------------------------
Kannan has accepted the revision "[jira] [HBASE-5357] [89-fb] Refactoring: use
the builder pattern for HColumnDescriptor".
nice!
REVISION DETAIL
https://reviews.facebook.net/D1929
BRANCH
hcd_builder7
> Use builder pattern in HColumnDescriptor
> ----------------------------------------
>
> Key: HBASE-5357
> URL: https://issues.apache.org/jira/browse/HBASE-5357
> Project: HBase
> Issue Type: Improvement
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Attachments: D1851.1.patch, D1851.2.patch, D1851.3.patch,
> D1851.4.patch, D1929.1.patch, D1929.2.patch,
> Use-builder-pattern-for-HColumnDescriptor-2012-02-21_19_13_35.patch,
> Use-builder-pattern-for-HColumnDescriptor-2012-02-23_12_42_49.patch,
> Use-builder-pattern-for-HColumnDescriptor-20120223113155-e387d251.patch
>
>
> We have five ways to create an HFile writer, two ways to create a StoreFile
> writer, and the sets of parameters keep changing, creating a lot of
> confusion, especially when porting patches across branches. The same thing is
> happening to HColumnDescriptor. I think we should move to a "builder pattern"
> solution, e.g.
> {code:java}
> HFileWriter w = HFile.getWriterBuilder(conf, <some common args>)
> .setParameter1(value1)
> .setParameter2(value2)
> ...
> .build();
> {code}
> Each parameter setter being on its own line will make merges/cherry-pick work
> properly, we will not have to even mention default parameters again, and we
> can eliminate a dozen impossible-to-remember constructors.
> This particular JIRA addresses the HColumnDescriptor refactoring. For
> StoreFile/HFile refactoring see HBASE-5442.
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