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From "Phabricator (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5442) Use builder pattern in StoreFile and HFile
Date Sat, 25 Feb 2012 22:31:52 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HBASE-5442:
-------------------------------

    Attachment: D1941.4.patch

mbautin updated the revision "[jira] [HBASE-5442] [89-fb] Use builder pattern in StoreFile
and HFile".
Reviewers: JIRA, khemani, Kannan, Liyin, Karthik, nspiegelberg

  Removing unused imports in HBaseTestingUtility

REVISION DETAIL
  https://reviews.facebook.net/D1941

AFFECTED FILES
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV1.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV2.java
  src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
  src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
  src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
  src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java
  src/main/java/org/apache/hadoop/hbase/util/CompressionTest.java
  src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
  src/test/java/org/apache/hadoop/hbase/HFilePerformanceEvaluation.java
  src/test/java/org/apache/hadoop/hbase/io/TestHalfStoreFileReader.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFile.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFilePerformance.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileSeek.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV2.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestReseekTo.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekTo.java
  src/test/java/org/apache/hadoop/hbase/mapreduce/TestLoadIncrementalHFiles.java
  src/test/java/org/apache/hadoop/hbase/regionserver/CreateRandomStoreFile.java
  src/test/java/org/apache/hadoop/hbase/regionserver/HFileReadWriteTest.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestStore.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java
  src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java

                
> 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
>             Fix For: 0.94.0
>
>         Attachments: D1893.1.patch, D1893.2.patch, D1941.1.patch, D1941.2.patch, D1941.3.patch,
D1941.4.patch, HFile-StoreFile-builder-2012-02-22_22_49_00.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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