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https://issues.apache.org/jira/browse/HBASE-5357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-5357:
-------------------------------
Attachment: D1929.1.patch
mbautin requested code review of "[jira] [HBASE-5357] [89-fb] Refactoring: use
the builder pattern for HColumnDescriptor".
Reviewers: Kannan, Liyin, Karthik, JIRA
Deprecate three ugly HColumnDescriptor constructors and use a "builder"
pattern instead, e.g. new
HColumnDescriptor(cfName).setMaxVersions(5).setBlockSize(8192), etc. Setters
have now become "builder" methods.
This is the 89-fb version of D1851.
TEST PLAN
Run unit tests
REVISION DETAIL
https://reviews.facebook.net/D1929
AFFECTED FILES
src/main/java/org/apache/hadoop/hbase/HColumnDescriptor.java
src/main/java/org/apache/hadoop/hbase/HTableDescriptor.java
src/main/java/org/apache/hadoop/hbase/client/UnmodifyableHColumnDescriptor.java
src/main/java/org/apache/hadoop/hbase/thrift/ThriftUtilities.java
src/test/java/org/apache/hadoop/hbase/HBaseTestCase.java
src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
src/test/java/org/apache/hadoop/hbase/TestSerialization.java
src/test/java/org/apache/hadoop/hbase/io/encoding/TestEncodedSeekers.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingTTL.java
src/test/java/org/apache/hadoop/hbase/mapreduce/TestHFileOutputFormat.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestColumnSeeking.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestMultiColumnScanner.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestScanWithBloomError.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestScanner.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestSeekOptimizations.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestWideScanner.java
> 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,
> 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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