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https://issues.apache.org/jira/browse/HBASE-7894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13583610#comment-13583610
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Ted Yu commented on HBASE-7894:
-------------------------------
>From FilterBase:
{code}
/**
* Filters that are purely stateless and do nothing in their reset() methods
can inherit
* this null/empty implementation.
*
* @inheritDoc
*/
@Override
public void reset() {
}
{code}
I think we can add javadoc for FilterBase stating that stateful Filter's should
implement reset() themselves.
> Update Filter javadoc about the use of read/write fields for multiple regions
> -----------------------------------------------------------------------------
>
> Key: HBASE-7894
> URL: https://issues.apache.org/jira/browse/HBASE-7894
> Project: HBase
> Issue Type: Improvement
> Reporter: Bryan Baugher
> Priority: Minor
>
> Following this[1] on the mailing list, it is not obvious how hbase will use a
> filter's read/write fields when there are multiple regions. Javadoc should be
> added explaining that for scans spanning multiple regions hbase will
> re-create the filter using the previous filter's writeFields instead of the
> original scan.
> [1] -
> http://mail-archives.apache.org/mod_mbox/hbase-user/201302.mbox/%3CCANZ-JHE-8FATa69ucHQmmZAUEkN1dKshiRKLJyb_bFf%3D6ZNm2A%40mail.gmail.com%3E
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