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https://issues.apache.org/jira/browse/HBASE-19595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-19595:
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Fix Version/s: (was: 2.0.0)
3.0.0
> explicitly discourage public user from creating their Public pojo
> -----------------------------------------------------------------
>
> Key: HBASE-19595
> URL: https://issues.apache.org/jira/browse/HBASE-19595
> Project: HBase
> Issue Type: Task
> Reporter: Chia-Ping Tsai
> Priority: Major
> Fix For: 3.0.0
>
>
> HBASE-19496 make both of ReplicationLoadSink and ReplicationLoadSource be
> IA.Public since they are exposed by other Public class (ServerMetrics).
> Currently, their constructor are annotated with IA.Private to discourage user
> from creating their ReplicationLoadSink and ReplicationLoadSource. However,
> that is too implicit as users have to trace the source code to "see" the
> warnings.
> I believe that many pojo in hbase have same issue. We have some kinds of
> coding style to warn user not to create their Public pojo.
> # IA.Private constructor. for example, ReplicationLoadSink and
> ReplicationLoadSource
> # pure interface. for example, TableDescriptor, ColumnFamilyDescriptor,
> ClusterMetrics
> # final class and package private constructor. for example, CacheEvictionStats
> All of them have pros and cons. #1 is a simple solution but it is too
> implicit for user. #2 will cause the BC issue (see HBASE-19535). #3 is good
> solution to prevent user from using the constructor or extending the pojo.
> However, it may limit us also. (mockito or extend the pojo internally)
> Any suggestions?
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