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https://issues.apache.org/jira/browse/HBASE-5442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13214322#comment-13214322
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Phabricator commented on HBASE-5442:
------------------------------------

stack has commented on the revision "[jira] [HBASE-5442] Use builder pattern in 
StoreFile and HFile".

  +1 on commit if hadoopqa is cool w/ this patch

INLINE COMMENTS
  src/main/java/org/apache/hadoop/hbase/io/hfile/AbstractHFileWriter.java:112 
You meant this Mikhail?
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV1.java:142 I like 
all this red

REVISION DETAIL
  https://reviews.facebook.net/D1893

                
> Use builder pattern in StoreFile and HFile
> ------------------------------------------
>
>                 Key: HBASE-5442
>                 URL: https://issues.apache.org/jira/browse/HBASE-5442
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Mikhail Bautin
>            Assignee: Mikhail Bautin
>         Attachments: D1893.1.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 StoreFile and HFile refactoring. For 
> HColumnDescriptor refactoring see HBASE-5357.

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