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https://issues.apache.org/jira/browse/HBASE-17106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-17106:
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Fix Version/s: (was: 2.0.0-alpha-4)
> Wrap arguments to Coprocessor method invocations in Context objects
> -------------------------------------------------------------------
>
> Key: HBASE-17106
> URL: https://issues.apache.org/jira/browse/HBASE-17106
> Project: HBase
> Issue Type: New Feature
> Reporter: Enis Soztutar
>
> As discussed in various contexts (and recently in
> https://issues.apache.org/jira/browse/HBASE-16962?focusedCommentId=15648512&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15648512)
> we have a very large number of deprecated methods in RegionObserver (and
> possibly others) which are due to the fact that the method signatures like:
> {code}
> @Deprecated
> InternalScanner preFlushScannerOpen(final
> ObserverContext<RegionCoprocessorEnvironment> c,
> final Store store, final KeyValueScanner memstoreScanner, final
> InternalScanner s)
> throws IOException;
> {code}
> depend inherently on the internal method signatures which gets changed
> frequently.
> We should look into wrapping the method arguments for such declerations in
> the RegionObserver interface so that we can evolve and add new arguments
> without breaking existing coprocessors between minor versions.
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