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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-590) How to integrate Derby with Lucene API?
Date Wed, 04 Jun 2014 12:45:03 GMT

    [ https://issues.apache.org/jira/browse/DERBY-590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14017665#comment-14017665

Rick Hillegas commented on DERBY-590:

Hi Knut,

Thanks for kicking the tires! Here are some responses to your questions:

KAH> Is there a way to create multiple Lucene indexes on one column?

You should be able to do this by defining a view on the base table and then creating a Lucene
index on the view.

KAH> Would it be difficult to make the luceneSupport tool capable of using custom analyzers
in jar files installed with SQLJ.INSTALL_JAR? I get a ClassNotFoundException if I try that

That should be easy to fix. Sounds like the code needs to use the database class loader when
resolving analyzers and query parsers. I have logged DERBY-6600 to track this. Thanks for
pointing this out.

KAH> With the current architecture, is it possible to make DROP TABLE also drop dependent
Lucene indexes? Or would the luceneSupport tool have to be moved into the engine in order
to have access to the dependency manager?

This is a defect of a loosely coupled approach. Altering a Lucene-indexed table won't affect
the Lucene indexes. The tool can probably get its hands on the dependency manager, though.
Would need some investigation.


> How to integrate Derby with Lucene API?
> ---------------------------------------
>                 Key: DERBY-590
>                 URL: https://issues.apache.org/jira/browse/DERBY-590
>             Project: Derby
>          Issue Type: Improvement
>          Components: Documentation, SQL
>            Reporter: Abhijeet Mahesh
>              Labels: derby_triage10_11
>         Attachments: LucenePlugin.html, LucenePlugin.html, LucenePlugin.html, derby-590-01-ag-publicAccessToLuceneRoutines.diff,
derby-590-01-ah-publicAccessToLuceneRoutines.diff, derby-590-01-am-publicAccessToLuceneRoutines.diff,
derby-590-02-aa-cleanupFindbugsErrors.diff, derby-590-03-aa-removeTestingDiagnostic.diff,
derby-590-04-aa-removeIDFromListIndexes.diff, derby-590-05-aa-accessDeclaredMembers.diff,
derby-590-06-aa-suppressAccessChecks.diff, derby-590-07-aa-accessClassInPackage.sun.misc.diff,
derby-590-08-aa-omitLuceneFlag.diff, derby-590-09-aa-localeSensitiveAnalysis.diff, derby-590-10-aa-fixLocaleTest.diff,
derby-590-11-aa-moveCode.diff, derby-590-12-aa-newJar.diff, derby-590-13-aa-indexViews.diff,
derby-590-14-aa-coarseGrainedAuthorization.diff, derby-590-15-aa-requireHardUpgrade.diff,
derby-590-16-aa-adjustUpgradeTest.diff, derby-590-17-aa-closeInputStreamOnPropertiesFile.diff,
derby-590-18-aa-cleanupAPI.diff, derby-590-19-aa-cleanupAPI2.diff, derby-590-20-aa-customQueryParser.diff,
derby-590-21-aa-noTimeTravel.diff, derby-590-22-aa-cleanupPrivacy.diff, derby-590-23-aa-correctTestLocale.diff,
derby-590-24-ad-luceneDirectory.diff, derby-590-26-ac-backupRestore.diff, derby-590-26-ad-backupRestoreEncryption.diff,
derby-590-27-aa-publicAPILuceneUtils.diff, derby-590-28-renameLuceneJars.diff, derby-590-29-aa-useLucene_4.7.1.diff,
derby-590-30-aa-nullableScoreCeiling.diff, exceptions.diff, lucene_demo.diff, lucene_demo_2.diff,
netbeans.diff, netbeans2.diff
> In order to use derby with lucene API what should be the steps to be taken? 

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