Code and examples for embedding Lucene in HSQLDB and Derby relational
databases:
<http://issues.apache.org/jira/browse/LUCENE-434>
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
http://wiki.apache.org/jakarta-lucene/LatestNews. However, my browser
times out trying to access the follow-up link
http://ppinew.mnis.com/jdbcdirectory. An email thread
(http://www.mail-archive.com/java-user@lucene.apache.org/msg01036.html)
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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