It doesn't try to use NumericField... maybe that can be done somehow so that
range queries can more easily be asked, I'll add that as a ticket
2010/9/23 Paddy <paddyf...@gmail.com>
> Hi Andreas,
> Yes it looks like you don't need to wrap it in a padded string.
> I tried using myIndex.add(ndOne, "time",1f); it will stills work.
> thanks
> Paddy
>
> On Thu, Sep 23, 2010 at 12:37 AM, Andreas Ronge <andreas.ro...@jayway.se
> >wrote:
>
> > Hi Paddy
> >
> > Thanks for the response.
> > But it would be nice to avoid wrapping integer or float values in
> > padded strings, as you described in your example:
> > > Node ndOne = gds.createNode();
> > > ndOne.setProperty("time", "1.3");
> > > myIndex.add(ndOne, "time", ndOne.getProperty("time") );
> > Instead I believe it's possible in Lucene 3.0 to index the time
> > property as a float. The question is if this feature is exposed in the
> > Neo4j Lucene API ?
> >
> > Cheers
> > Andreas
> >
> >
> > On Thu, Sep 23, 2010 at 8:43 AM, Paddy <paddyf...@gmail.com> wrote:
> > > Hi Andres,
> > > Not sure about the use of sorting but I have previously tried some
> > numeric
> > > range queries with the new indexProvider.
> > > I've added my some test code i used below.
> > >
> > >
> > > Cheers
> > > Paddy
> > >
> > > public class indexTest {
> > > static GraphDatabaseService gds;
> > > static IndexProvider provider;
> > >
> > > @BeforeClass
> > > public static void setup() {
> > > gds = new EmbeddedGraphDatabase("data/neodb/neodb-tmp");
> > > provider = new LuceneIndexProvider( gds );
> > > }
> > >
> > > @Test
> > > public void fullTextIndex() {
> > > Transaction tx = gds.beginTx();
> > > try {
> > > Node ndOne = gds.createNode();
> > > ndOne.setProperty("time", "1.3");
> > > Node ndTwo = gds.createNode();
> > > ndTwo.setProperty("time", "1.5");
> > > Node ndThree = gds.createNode();
> > > ndThree.setProperty("time", "2.0");
> > > Node ndFour = gds.createNode();
> > > ndFour.setProperty("time", "3.0");
> > > Node ndFive = gds.createNode();
> > > ndFive.setProperty("time", "5.0");
> > >
> > > Index<Node> myIndex = provider.nodeIndex( "fulltext",
> > > LuceneIndexProvider.FULLTEXT_CONFIG );
> > > myIndex.add(ndOne, "time", ndOne.getProperty("time") );
> > > myIndex.add(ndTwo, "time", ndTwo.getProperty("time") );
> > > myIndex.add(ndThree,"time", ndThree.getProperty("time") );
> > > myIndex.add(ndFour, "time", ndFour.getProperty("time") );
> > > myIndex.add(ndFive, "time", ndFive.getProperty("time") );
> > >
> > > for ( Node searchHit : myIndex.query( "time:[1.5 TO 4.3]" ) )
> > > {
> > > System.out.println( "Found " + searchHit.toString() );
> > > System.out.println("time" + searchHit.getProperty("time"));
> > > }
> > >
> > > tx.success();
> > > } finally {
> > > tx.finish();
> > > }
> > > }
> > > }
> > >
> > > On Wed, Sep 22, 2010 at 11:15 PM, Andreas Ronge <
> andreas.ro...@jayway.se
> > >wrote:
> > >
> > >> Hi
> > >>
> > >> In the example
> > >>
> >
> https://svn.neo4j.org/laboratory/components/lucene-index/trunk/src/test/java/org/neo4j/index/impl/lucene/TestLuceneIndex.java
> > >> I only see how to sort by Sort.RELEVANCE and Sort.INDEXORDER.
> > >> How do I sort ascending/ on different fields ?
> > >>
> > >> Another related question, how does neo4j work with the new improved
> > >> numerical capabilities of lucene 3.0.
> > >> Example if I add an integer with
> > >> org.neo4j.graphdb.index.Index.add(entity, key, integer_value) will it
> > >> be index as a NumericField so that I (how?) can use
> > >> NumericRangeQueries ?
> > >>
> > >> (In old lucene one had to convert integers to strings and pad it with
> > >> zeros)
> > >>
> > >> Cheers
> > >> Andres
> > >> _______________________________________________
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> > >>
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--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
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