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From "Appy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17732) Add CpType template to CoprocessorEnvironment
Date Sat, 04 Mar 2017 00:57:45 GMT
Appy created HBASE-17732:
----------------------------

             Summary: 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


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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