code: public List<Object> executeLuceneQuery(EntityMetadata m, String luceneQuery)
      {
          log.info("Executing Lucene Query on Neo4J:" + luceneQuery);
  
          GraphDatabaseService graphDb = getConnection();
          List<Object> entities = new ArrayList<Object>();
  
          if (!indexer.isNodeAutoIndexingEnabled(graphDb) && m.isIndexable())
          {
              Index<Node> nodeIndex = graphDb.index().forNodes(m.getIndexName());
  
              IndexHits<Node> hits = nodeIndex.query(luceneQuery);
              addEntityFromIndexHits(m, entities, hits);
          }
          else
          {
  
              ReadableIndex<Node> autoNodeIndex = graphDb.index().getNodeAutoIndexer().getAutoIndex();
              IndexHits<Node> hits = autoNodeIndex.query(luceneQuery);
              addEntityFromIndexHits(m, entities, hits);
  
          }
          return entities;
      }
docs: Execute lucene query.
  
  @param m
  the m
  @param luceneQuery
  the lucene query
  @return the list