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https://issues.apache.org/jira/browse/LUCENE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848114#action_12848114
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Earwin Burrfoot commented on LUCENE-2339:
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I wonder if we could convert these methods from static to members, so it
becomes 'from.copyTo(to, files)' ?
This opens up the possibility to override.. and.. hmm.. optimize somehow, if
'to' is of the same type as 'this'.
I believe you can rig some nio-based file copier that bypasses Java completely,
so you don't have to pass multi-gb indexes through your heap when, say, backing
up.
> Allow Directory.copy() to accept a collection of file names to be copied
> ------------------------------------------------------------------------
>
> Key: LUCENE-2339
> URL: https://issues.apache.org/jira/browse/LUCENE-2339
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Earwin Burrfoot
> Assignee: Michael McCandless
> Attachments: LUCENE-2339.patch
>
>
> Par example, I want to copy files pertaining to a certain commit, and not
> everything there is in a Directory.
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