How can I use Neo4j with Lucene 4

Question

I have an application that currently works with Titan graph database which uses Lucene 4.4. for the indexing. In the same application I want to work also with the Neo4j graph database, which unfortunately uses Lucene 3.6. For this reason I get compile errors. Is there a solution to this problem?

Answer 1

UPDATE: If you are using Maven, you can put one of the Lucene dependencies in its own project and use Maven Shade plugin to rename the Lucene references in the bytecode of the project depending on Neo4j. In my case this required moving the Neo4j dependencies into a separate project, but works great (in particular the class relocation feature).

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ORIGINAL POST: It seems like Neo4j doesn't support Lucene 4 and doesn't intend to. Here's a couple informative links:

Alternative IndexProvider for Neo4J 1.9.1

https://github.com/neo4j/neo4j/issues/6

Here's the github repo where someone wrote an index provider for Neo4j to be compatible with Lucene 4. I've no idea how well it works, as I am not yet desperate enough to try it (yet), but it appears to be the only thing out there.