Robert, My solution is the latter. If it is possible to do it using blob seek, I will attempt to do it next.
Amir On 1/11/06, Robert Engels <[EMAIL PROTECTED]> wrote: > > Since no code has been posted, I'll just ask the question... > > Does your implementation use the Blob "seek" functions when reading and > writing, or does it read/write the blob in its entirety. > > If it is the latter, your solution is only acceptable for the smallest of > Lucene indexes. If it is the former, it would be interesting to see the > results using various db & drivers, as many JDBC blob impls do not support > this functionality, and read/write the blob completely behind the scenes. > > -----Original Message----- > From: Amir Kibbar (JIRA) [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 11, 2006 12:35 PM > To: java-dev@lucene.apache.org > Subject: [jira] Created: (LUCENE-487) Database as a lucene index target > > > Database as a lucene index target > --------------------------------- > > Key: LUCENE-487 > URL: http://issues.apache.org/jira/browse/LUCENE-487 > Project: Lucene - Java > Type: New Feature > Components: Store > Versions: 1.9 > Environment: MySql (version 4.1 an up), Oracle (version 8.1.7 and up) > Reporter: Amir Kibbar > Priority: Minor > > > I've written an extension for the Directory object called DBDirectory, > that allows you to read and write a Lucene index to a database instead of a > file system. > > This is done using blobs. Each blob represents a "file". Also, each blob > has a name which is equivalent to the filename and a prefix, which is > equivalent to a directory on a file system. This allows you to create > multiple Lucene indexes in a single database schema. > > The solution uses two tables: > LUCENE_INDEX - which holds the index files as blobs > LUCENE_LOCK - holds the different locks > > Attached is my proposed solution. This solution is still very basic, but > it does the job. > The solution supports Oracle and mysql > > To use this solution: > > 1. Place the files: > - DBDirectory in src/java/org/apache/lucene/store > - TestDBIndex in src/test/org/apache/lucene/index > - objects-mysql.sql in src/db > - objects-oracle.sql in src/db > > 2. Edit the parameters for the database connection in TestDBIndex > > 3. Create the database tables using the objects-mysql.sql script (assuming > you're using mysql) > > 4. Build Lucene > > 5. Run TestDBIndex with the database driver in the classpath > > I've tested the solution on mysql, but it *should* work on Oracle, I will > test that in a few days. > > Amir > > -- > This message is automatically generated by JIRA. > - > If you think it was sent incorrectly contact one of the administrators: > http://issues.apache.org/jira/secure/Administrators.jspa > - > For more information on JIRA, see: > http://www.atlassian.com/software/jira > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
