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From Steven Rowe <>
Subject Re: lucene and databases
Date Mon, 24 Oct 2005 17:58:06 GMT
Code and examples for embedding Lucene in HSQLDB and Derby relational 

Rick Hillegas wrote:
> Thanks to Yonik for replying to my last question about queries and filters.
> Now I have another issue. I would appreciate any pointers to attempts to 
> integrate Lucene with databases. There's a tantalizing reference to a 
> class called JDBCDirectory mentioned at 
> However, my browser 
> times out trying to access the follow-up link 
> An email thread 
> ( 
> makes me hope that this class helps an application index a body of 
> documents stored in a relational database. But this class, perhaps a 
> cousin of FSDirectory and RAMDirectory, doesn't seem to be part of 
> Lucene proper.
> In any event, I would appreciate pointers to people's experience 
> integrating Lucene with relational databases. I realize this is a very 
> broad question. It sweeps up topics like the following:
> o Indexing content that is stored in a dbms
> o Wrapping filters around the results of sql queries
> o Integrating Lucene query syntax with sql query syntax
> o Practical tips about when to expose information as a Lucene field vs. 
> when to expose that  information as a column in a relational table
> Thanks,
> -Rick

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