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From "Mikhail Bautin (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-5442) Use builder pattern in StoreFile and HFile
Date Wed, 22 Feb 2012 03:24:57 GMT
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

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.

  HFileWriter w = HFile.getWriterBuilder(conf, <some common args>)

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

This particular JIRA addresses StoreFile and HFile refactoring. For HColumnDescriptor refactoring
see HBASE-5357.

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