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https://issues.apache.org/jira/browse/LUCENE-5079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13694123#comment-13694123
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Michael McCandless commented on LUCENE-5079:
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I think volatile is best ... there is IO that happens when "this" is locked,
e.g. when applying deletes.
> allow IndexWriter user to tell if there are uncommitted changes.
> ----------------------------------------------------------------
>
> Key: LUCENE-5079
> URL: https://issues.apache.org/jira/browse/LUCENE-5079
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Yonik Seeley
> Attachments: LUCENE-5079.patch, LUCENE-5079.patch
>
>
> IndexWriter already currently tracks if there are uncommitted changes. We
> should expose this somehow... perhaps a boolean hasUncommittedChanges()?
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