Thanks! Actually, that might be perfect, since we're more interested in committed content for now. Will give it a try!
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mattias Persson Sent: Thursday, June 16, 2011 11:50 AM To: Neo4j user discussions Subject: Re: [Neo4j] Open question on Index Framework Hi Rick, you could probably get the keys from the IndexReader, like so: // I'm in LuceneIndex now public Iterable<String> getKeys() { IndexSearcherRef searcher = service.dataSource().getIndexSearcher( identifier, true ); try { IndexReader reader = searcher.getSearcher().getIndexReader(); Collection<String> fieldNames = reader.getFieldNames( FieldOption.ALL ); // Make a copy since we don't know if the result is final or not Collection<String> result = new ArrayList<String>( fieldNames ); result.remove( KEY_DOC_ID ); result.remove( KEY_START_NODE_ID ); result.remove( KEY_END_NODE_ID ); return result; } finally { searcher.closeStrict(); } } This is a perhaps bit crude implementation and will only work on committed stuff, not any transactional state. This is a start at least. public Iterable<String> getValues( String key ) { IndexSearcherRef searcher = service.dataSource().getIndexSearcher( identifier, true ); try { IndexReader reader = searcher.getSearcher().getIndexReader(); Collection<String> result = new ArrayList<String>(); TermEnum terms = reader.terms( new Term( key ) ); do { result.add( terms.term().text() ); } while ( terms.next() ); return result; } catch ( IOException e ) { throw new RuntimeException( e ); } finally { searcher.closeStrict(); } } Suffers from the same problem of transactional state and also doesn't consider that values could be other types, f.ex. integers where the string is a weird encoding of such a value. 2011/6/9 Rick Bullotta <[email protected]> > We really need a way to query a list of all of the terms for a specific > field/key name. Any thoughts on how we could extend the Index framework > safely to do this? > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > -- Mattias Persson, [[email protected]] Hacker, Neo Technology www.neotechnology.com _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
