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https://issues.apache.org/jira/browse/HBASE-17732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Appy updated HBASE-17732:
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Attachment: HBASE-17732.master.001.patch
> Add CpType template to CoprocessorEnvironment
> ---------------------------------------------
>
> Key: HBASE-17732
> URL: https://issues.apache.org/jira/browse/HBASE-17732
> Project: HBase
> Issue Type: Improvement
> Reporter: Appy
> Assignee: Appy
> Attachments: HBASE-17732.master.001.patch
>
>
> Adding template for coprocessor type to CoprocessorEnvironment will:
> - get rid of 'instanceOf' checks we do in various coprocessor hosts
> - allow us to load only relevant coprocessors in hosts (right now i think
> each host loads all coprocs and it's only during execOperation that it checks
> if the coproc is of correct type ie XXCoprocessorHost will load XXObserver,
> YYObserver, and all others, and in will check in execOperation if coproc is
> of type XXObserver and ignore the rest).
> - allow sharing of a bunch functions/classes which are currently 99%
> duplicate of each other. For eg. CoprocessorOperations,
> CoprocessorOperationWithResult, execOperations().
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