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From Rick Hillegas <Richard.Hille...@Sun.COM>
Subject lucene and databases
Date Mon, 24 Oct 2005 17:30:25 GMT
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


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