Can a Lucene index be stored in an RDBMS

If I don't have access to the file syst开发者_StackOverflow社区em, but do have access to a MySQL instance, can I store the lucene index in a mysql database. I was able to find the DbDirectory and thought that it might do the trick. However, it looks like it works with a Berkeley DB rather than an RDBMS.

There are some contribution that stores lucene index in more simple datastores (from perspective of data model). For example, BerkleyDB and Cassandra. So technically it is possible to write implementation of Directory which would store index in Jdbc. There is one in Compass framework.

I dont believe you can, it would defeat the purpose of Lucene. If your indexing does not take to long you could consider a RAMDirectory which I believe stores it in memory.