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https://issues.apache.org/jira/browse/LUCENE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848197#action_12848197
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Earwin Burrfoot commented on LUCENE-2339:
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bq. NIO's transferTo, right?
I didn't remember this at the point of writing, but yes, transferTo.
Google says that with certain restrictions on the size of the chunk transferred
at once (eg. one huge chunk for linux, 64mb-something chunks for windows), this
works crossplatform.
n...@java7 has an even more simple Path.copyTo() method, so happy 7 users can
use this.
bq. For backups I wonder if we should make a copyTo/From that takes an
IndexCommit
Ohmigosh, no! : }
You can get file list from IC and feed it into copy(). More power with less API
surface.
I'm going to add two methods copyTo(target) and copyTo(target, filenames),
rewrite copy(source, target, close) to use these and deprecate it.
There's no point in keeping around slightly different versions of the same
thing, and I believe people can easily close their source dirs by themselves,
what a stupid option.
> 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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