How to get keys associated to an index?

Question

I'm using neo4j 1.9.9 and I'm trying to use a search using indexes (now called legacy indexes). However, I'm not sure about the key to use.

For example, because I have the __types__ index created by Spring Data neo4j, I've done something like

start n=node:__types__(className="domain.Person") return n; 

but it always returns 0 rows. I've also tried other kinds of keys instead of className, but nothing appears.

So, is there any way to know what keys are available for a given index?

Answer 1

Use the Lucene Index Toolbox called Luke to get a low level access to the indexes located in graph.db/index. Please note that you cannot do this while Neo4j is running since the files get locked.

So either shut down Neo4j before using Luke or (preferred) take a copy of graph.db/index and use Luke on the copy.