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https://issues.apache.org/jira/browse/HBASE-7503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13554449#comment-13554449
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Devaraj Das commented on HBASE-7503:
------------------------------------

bq. Is there a way to put "repeated optionnal"? Or does repeated mean >= 0?

Repeated means greater-than or equal to 0.. (in the code you could check 
whether the count of the field is > 0 by looking at the corresponding list size 
or the count).
                
> Add exists(List) in HTableInterface to allow multiple parallel exists at one 
> time
> ---------------------------------------------------------------------------------
>
>                 Key: HBASE-7503
>                 URL: https://issues.apache.org/jira/browse/HBASE-7503
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jean-Marc Spaggiari
>            Assignee: Jean-Marc Spaggiari
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: HBASE-7503-v0-trunk.patch, HBASE-7503-v1-trunk.patch
>
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> We need to have a Boolean[] exists(List<Get> gets) throws IOException method 
> implemented in HTableInterface.

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