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Date: Sat, 27 Oct 2012 18:49:12 +0000 (UTC)
From: "Suresh Srinivas (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HADOOP-8985) Add namespace declarations in .proto
 files for languages other than java
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     [ https://issues.apache.org/jira/browse/HADOOP-8985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suresh Srinivas updated HADOOP-8985:
------------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0.3-alpha
                   3.0.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

+1 for the patch. I committed it to trunk and branch-2.

Thank you Binglin.
                
> Add namespace declarations in .proto files for languages other than java
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-8985
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8985
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>            Priority: Minor
>             Fix For: 3.0.0, 2.0.3-alpha
>
>         Attachments: HADOOP-8985-add-namespace.patch
>
>
> Currently .proto files use java_package to specify java packages in proto files, but namespace are not specified for other languages such as cpp, this causes name collision in cpp. we can add namespace declarations to avoid this. 
> In Java, the package specifier is used as the Java package, unless you explicitly provide a option java_package in your .proto file. So the original java package will not be affected.
> About namespace name, how about "hadoop.common"(hadoop::common in cpp) for all common sub-project proto files, and "hadoop.hdfs"(hadoop::hdfs in cpp) for all hdfs sub-project proto files?

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