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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1794) implement reusableTokenStream for all contrib analyzers
Date Tue, 11 Aug 2009 13:06:14 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741849#action_12741849
] 

Mark Miller commented on LUCENE-1794:
-------------------------------------

So what do you propose  ? You would just cast to CachingTokenFilter if you want rewind?

I've never really been a fan of these methods that are optionally implemented ... and you
must know the type if you know it can rewind.

So what about making reset required (and work the same across all TokenStreams) and adding
rewind to CachingTokenFilter then?

> implement reusableTokenStream for all contrib analyzers
> -------------------------------------------------------
>
>                 Key: LUCENE-1794
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1794
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: LUCENE-1794.patch, LUCENE-1794.patch, LUCENE-1794.patch
>
>
> most contrib analyzers do not have an impl for reusableTokenStream
> regardless of how expensive the back compat reflection is for indexing speed, I think
we should do this to mitigate any performance costs. hey, overall it might even be an improvement!
> the back compat code for non-final analyzers is already in place so this is easy money
in my opinion.

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