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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4575) Allow IndexWriter to commit, even just commitData
Date Thu, 29 Nov 2012 15:20:58 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506528#comment-13506528
] 

Uwe Schindler commented on LUCENE-4575:
---------------------------------------

The API returns Map<String,String>, so we make no garanties about order.
                
> Allow IndexWriter to commit, even just commitData
> -------------------------------------------------
>
>                 Key: LUCENE-4575
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4575
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/index
>            Reporter: Shai Erera
>            Priority: Minor
>         Attachments: LUCENE-4575.patch
>
>
> Spinoff from here http://lucene.472066.n3.nabble.com/commit-with-only-commitData-td4022155.html.
> In some cases, it is valuable to be able to commit changes to the index, even if the
changes are just commitData. Such data is sometimes used by applications to register in the
index some global application information/state.
> The proposal is:
> * Add a setCommitData() API and separate it from commit() and prepareCommit() (simplify
their API)
> * When that API is called, flip on the dirty/changes bit, so that this gets committed
even if no other changes were made to the index.
> I will work on a patch a post.

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