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https://issues.apache.org/jira/browse/LUCENE-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12491557
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Karl Wettin commented on LUCENE-580:
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25 apr 2007 kl. 10.23 skrev Michael Busch (JIRA):
> What kind of use cases do you have in mind with the cached field?
I made the inital implementation for text mining purposes -- I needed the term
vector prior to inserting the document to the index. Back then I analyzed,
cached it up, did my secondary analysis of the vector, and finally
reconstructed the token stream and passed it to the field. I think it would be
easier to just pass a token stream to an extention of CachedPreAn.. that also
features a termFreqVector(), termPosVector(), et c.
Karl
> Pre-analyzed fields
> -------------------
>
> Key: LUCENE-580
> URL: https://issues.apache.org/jira/browse/LUCENE-580
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Analysis
> Affects Versions: 1.9
> Reporter: Karl Wettin
> Assigned To: Michael Busch
> Priority: Minor
> Attachments: preanalyze.tar, trunk.diff
>
>
> Adds the possibility to set a TokenStream at Field constrution time,
> available as tokenStreamValue in addition to stringValue, readerValue and
> binaryValue.
> There might be some problems with mixing stored fields with the same name as
> a field with tokenStreamValue.
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