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https://issues.apache.org/jira/browse/LUCENE-1794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12742984#action_12742984
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Robert Muir commented on LUCENE-1794:
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Shai, first of all let me address your first comment... for the saved streams
thing.
one issue would be how to implement AnalyzerWrappers with that? with the
existing functionality I am able to make this work. See my impl for
ShingleAnalyzerWrapper for an example.
your second comment, I only call reset() on streams.result when there is a
state-keeping TokenFilter on that chain. it is not necessary to invoke it if
reset() is a no-op...
> 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,
> 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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