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https://issues.apache.org/jira/browse/LUCENE-3849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13744880#comment-13744880
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Robert Muir commented on LUCENE-3849:
-------------------------------------
{quote}
That's a good idea on end(); I'll do that and check all impls.
{quote}
I did this: i dont think there are any issues (or you fixed them in the patch).
So I think when this issue is committed we should resolve LUCENE-4318. Thank
you!
> position increments should be implemented by TokenStream.end()
> --------------------------------------------------------------
>
> Key: LUCENE-3849
> URL: https://issues.apache.org/jira/browse/LUCENE-3849
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 3.6, 4.0-ALPHA
> Reporter: Robert Muir
> Attachments: LUCENE-3849.patch, LUCENE-3849.patch, LUCENE-3849.patch,
> LUCENE-3849.patch
>
>
> if you have pages of a book as multivalued fields, with the default position
> increment gap
> of analyzer.java (0), phrase queries won't work across pages if one ends with
> stopword(s).
> This is because the 'trailing holes' are not taken into account in end(). So
> I think in
> TokenStream.end(), subclasses of FilteringTokenFilter (e.g. stopfilter)
> should do:
> {code}
> super.end();
> posIncAtt += skippedPositions;
> {code}
> One problem is that these filters need to 'add' to the posinc, but currently
> nothing clears
> the attributes for end() [they are dirty, except offset which is set by the
> tokenizer].
> Also the indexer should be changed to pull posIncAtt from end().
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