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From Todd VanderVeen <...@part.net>
Subject Re: incorrect OO in lucene source?
Date Tue, 20 Apr 2004 18:44:20 GMT
Doug Cutting wrote:

> Grant Ingersoll wrote:
>
>> The thread safety issues are on the search side usage of Analyzer, 
>> not indexing.
>
>
> Primarily search, but not exclusively.  IndexWriter is thread safe.  
> One can add documents to a single IndexWriter instance from multiple 
> threads.  Tokenization will be done in parallel.
>
> Doug
>
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Can you clarify this for me? Will the tokenStream method of an Analyzer 
instance ever be called concurrently? I see in typical analyzer 
implementations a Tokenizer and TokenFilters are instantiated anew with 
each call and thus skirt the issue.

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