Btw I don't think lucene can do that kind of multiple-field sorting for you,
or can it?
2010/9/23 Mattias Persson <matt...@neotechnology.com>
> 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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>
>
>
> --
> Mattias Persson, [matt...@neotechnology.com]
> Hacker, Neo Technology
> www.neotechnology.com
>
--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
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