[jira] [Commented] (ACCUMULO-1280) Add close method to iterators

["Keith Turner (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ACCUMULO-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15945505#comment-15945505 ] 

Keith Turner commented on ACCUMULO-1280:
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We have found with [PR#159|https://github.com/apache/accumulo/pull/159] that trying to add {{close()}} to iterators has many sharp edges for us and users.  Another approach to solve this problem is to add a  {{addCleanupAction(Runnable)}} method to {{IteratorEnvironment}}.  This allows the iterator to add clean up actions that will be called when Accumulo is finished with the iterator.

> Add close method to iterators
> -----------------------------
>
>                 Key: ACCUMULO-1280
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1280
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Keith Turner
>            Assignee: Michael Miller
>             Fix For: 2.0.0
>
>          Time Spent: 10h 40m
>  Remaining Estimate: 0h
>
> It would be useful if Accumulo iterators had a close method.  Accumulo would call this when its finished using the iterator stack.
> How would this work w/ isolation?
> Is it ok to break the iterator API?



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