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https://issues.apache.org/jira/browse/HBASE-3400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ed Kohlwey updated HBASE-3400:
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Attachment: HBASE-3400-4.patch
Yet another patch.
This modification fixes an issue where Exec was not properly handling
primitives.
Not posted to review.hbase.org as the site appears to be down.
> Coprocessor Support for Generic Interfaces
> ------------------------------------------
>
> Key: HBASE-3400
> URL: https://issues.apache.org/jira/browse/HBASE-3400
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.92.0
> Reporter: Ed Kohlwey
> Assignee: Ed Kohlwey
> Attachments: HBASE-3400-4.patch, HBASE-3400.patch
>
>
> Coprocessors currently do not support generic interfaces because type erasure
> makes their generic parameters appear as Objects to Invocation.java.
> This can be overcome by writing out the parameters using their own types
> (rather than the type parameters), and then separately writing the class
> names for the type parameters. While it would be ideal to implement this in
> Invocation.java, some other code seems to be relying on its write order and
> doing so breaks other RPC code. The modification can, however, be implemented
> in Exec.java instead.
> The included patch modifies Invocation.java's fields to that they are
> protected scope, and fully implements the read and write methods for Exec
> rather than using the parent method for the parent fields. ExecResult is also
> modified to accommodate generic returns in the same way.
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