Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
Thanks a lot ! On Tue, Sep 28, 2010 at 11:22 PM, Mattias Persson wrote: > I think there's a working version of it now... look at the tests for more > information: > https://svn.neo4j.org/laboratory/components/lucene-index/trunk/src/test/java/org/neo4j/index/impl/lucene/TestLuceneIndex.java(testSorting, > testNumericValues). > 2010/9/24 Mattias Persson > >> >> >> 2010/9/24 Andreas Ronge >> >> On Thu, Sep 23, 2010 at 7:50 PM, Mattias Persson >>> wrote: >>> > 2010/9/23 Andreas Ronge >>> > >>> >> That's really good news ! >>> >> Does it also work if it was not indexes as Strings ? ( so that we can >>> >> sort integers or floats without any padding) >>> >> I guess that requires that neo4j-lucene adds NumericField instances to >>> >> the lucene document. >>> >> >>> > >>> > Exactly, I'm just working on a solution for that... I'm not sure it >>> should >>> > index all Integer, Long, Float, Double values implicitly as NumericField >>> > since those aren't searchable with a regular term query. Maybe do >>> something >>> > explicit like: >>> > >>> > myIndex.add( entity, "age", new ValueContext( 31 ).indexNumeric() ); >>> > ... >>> > // Query integer range >>> > myIndex.query( NumericRangeQuery.newIntRange( "age", 30, 40, true, >>> false >>> > ) ); >>> > // And with sorting (quite verbose though) >>> > myIndex.query( new QueryContext( NumericRangeQuery.newIntRange( >>> > "age", 0, 100, true, true ) ).sort( new Sort( new SortField( >>> "age", >>> > SortField.INT ) ) ) ); >>> > >>> > So that you must know what you're doing... would that be ok or any other >>> > better idea? >>> >>> I think it's great that we have access to the full lucene API in the >>> QueryContext. >>> I don't care if it's verbose since I will wrap it in a nice JRuby API :-) >>> I've already started to document how my lucene sorting and range query >>> API will look like in Neo4j.rb; >>> http://github.com/andreasronge/neo4j/wiki/Lucene >>> (I will specify both the field will be indexed as numerical and of what >>> type.) >>> >> >> Great, so I'll try to get this going and make a commit when I get the time >> (almost working locally). >> >> >> -- >> Mattias Persson, [matt...@neotechnology.com] >> Hacker, Neo Technology >> www.neotechnology.com >> > > > > -- > Mattias Persson, [matt...@neotechnology.com] > Hacker, Neo Technology > www.neotechnology.com > ___ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
I think there's a working version of it now... look at the tests for more information: https://svn.neo4j.org/laboratory/components/lucene-index/trunk/src/test/java/org/neo4j/index/impl/lucene/TestLuceneIndex.java(testSorting, testNumericValues). 2010/9/24 Mattias Persson > > > 2010/9/24 Andreas Ronge > > On Thu, Sep 23, 2010 at 7:50 PM, Mattias Persson >> wrote: >> > 2010/9/23 Andreas Ronge >> > >> >> That's really good news ! >> >> Does it also work if it was not indexes as Strings ? ( so that we can >> >> sort integers or floats without any padding) >> >> I guess that requires that neo4j-lucene adds NumericField instances to >> >> the lucene document. >> >> >> > >> > Exactly, I'm just working on a solution for that... I'm not sure it >> should >> > index all Integer, Long, Float, Double values implicitly as NumericField >> > since those aren't searchable with a regular term query. Maybe do >> something >> > explicit like: >> > >> >myIndex.add( entity, "age", new ValueContext( 31 ).indexNumeric() ); >> >... >> >// Query integer range >> >myIndex.query( NumericRangeQuery.newIntRange( "age", 30, 40, true, >> false >> > ) ); >> >// And with sorting (quite verbose though) >> >myIndex.query( new QueryContext( NumericRangeQuery.newIntRange( >> >"age", 0, 100, true, true ) ).sort( new Sort( new SortField( >> "age", >> > SortField.INT ) ) ) ); >> > >> > So that you must know what you're doing... would that be ok or any other >> > better idea? >> >> I think it's great that we have access to the full lucene API in the >> QueryContext. >> I don't care if it's verbose since I will wrap it in a nice JRuby API :-) >> I've already started to document how my lucene sorting and range query >> API will look like in Neo4j.rb; >> http://github.com/andreasronge/neo4j/wiki/Lucene >> (I will specify both the field will be indexed as numerical and of what >> type.) >> > > Great, so I'll try to get this going and make a commit when I get the time > (almost working locally). > > > -- > Mattias Persson, [matt...@neotechnology.com] > Hacker, Neo Technology > www.neotechnology.com > -- Mattias Persson, [matt...@neotechnology.com] Hacker, Neo Technology www.neotechnology.com ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
2010/9/24 Andreas Ronge > On Thu, Sep 23, 2010 at 7:50 PM, Mattias Persson > wrote: > > 2010/9/23 Andreas Ronge > > > >> That's really good news ! > >> Does it also work if it was not indexes as Strings ? ( so that we can > >> sort integers or floats without any padding) > >> I guess that requires that neo4j-lucene adds NumericField instances to > >> the lucene document. > >> > > > > Exactly, I'm just working on a solution for that... I'm not sure it > should > > index all Integer, Long, Float, Double values implicitly as NumericField > > since those aren't searchable with a regular term query. Maybe do > something > > explicit like: > > > >myIndex.add( entity, "age", new ValueContext( 31 ).indexNumeric() ); > >... > >// Query integer range > >myIndex.query( NumericRangeQuery.newIntRange( "age", 30, 40, true, > false > > ) ); > >// And with sorting (quite verbose though) > >myIndex.query( new QueryContext( NumericRangeQuery.newIntRange( > >"age", 0, 100, true, true ) ).sort( new Sort( new SortField( > "age", > > SortField.INT ) ) ) ); > > > > So that you must know what you're doing... would that be ok or any other > > better idea? > > I think it's great that we have access to the full lucene API in the > QueryContext. > I don't care if it's verbose since I will wrap it in a nice JRuby API :-) > I've already started to document how my lucene sorting and range query > API will look like in Neo4j.rb; > http://github.com/andreasronge/neo4j/wiki/Lucene > (I will specify both the field will be indexed as numerical and of what > type.) > Great, so I'll try to get this going and make a commit when I get the time (almost working locally). -- Mattias Persson, [matt...@neotechnology.com] Hacker, Neo Technology www.neotechnology.com ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
On Thu, Sep 23, 2010 at 7:50 PM, Mattias Persson
wrote:
> 2010/9/23 Andreas Ronge
>
>> That's really good news !
>> Does it also work if it was not indexes as Strings ? ( so that we can
>> sort integers or floats without any padding)
>> I guess that requires that neo4j-lucene adds NumericField instances to
>> the lucene document.
>>
>
> Exactly, I'm just working on a solution for that... I'm not sure it should
> index all Integer, Long, Float, Double values implicitly as NumericField
> since those aren't searchable with a regular term query. Maybe do something
> explicit like:
>
> myIndex.add( entity, "age", new ValueContext( 31 ).indexNumeric() );
> ...
> // Query integer range
> myIndex.query( NumericRangeQuery.newIntRange( "age", 30, 40, true, false
> ) );
> // And with sorting (quite verbose though)
> myIndex.query( new QueryContext( NumericRangeQuery.newIntRange(
> "age", 0, 100, true, true ) ).sort( new Sort( new SortField( "age",
> SortField.INT ) ) ) );
>
> So that you must know what you're doing... would that be ok or any other
> better idea?
I think it's great that we have access to the full lucene API in the
QueryContext.
I don't care if it's verbose since I will wrap it in a nice JRuby API :-)
I've already started to document how my lucene sorting and range query
API will look like in Neo4j.rb;
http://github.com/andreasronge/neo4j/wiki/Lucene
(I will specify both the field will be indexed as numerical and of what type.)
/Andreas
>
>
>> /Andreas
>>
>>
>>
>> On Thu, Sep 23, 2010 at 11:21 AM, Mattias Persson
>> wrote:
>> > 2010/9/23 Mattias Persson
>> >
>> >> Btw I don't think lucene can do that kind of multiple-field sorting for
>> >> you, or can it?
>> >>
>> >
>> > Scratch that... you can do:
>> >
>> > myNodeIndex.query( new QueryContext( "name:*...@gmail.com" ).sort( new
>> Sort(
>> > new SortField( "name", SortField.STRING ) ) );
>> >
>> > that way you let Lucence sort the result for you on the key "name".
>> >
>> >
>> >>
>> >> 2010/9/23 Mattias Persson
>> >>
>> >> 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
>> >>>
>> >>> 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 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 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.quer
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
2010/9/23 Andreas Ronge
> That's really good news !
> Does it also work if it was not indexes as Strings ? ( so that we can
> sort integers or floats without any padding)
> I guess that requires that neo4j-lucene adds NumericField instances to
> the lucene document.
>
Exactly, I'm just working on a solution for that... I'm not sure it should
index all Integer, Long, Float, Double values implicitly as NumericField
since those aren't searchable with a regular term query. Maybe do something
explicit like:
myIndex.add( entity, "age", new ValueContext( 31 ).indexNumeric() );
...
// Query integer range
myIndex.query( NumericRangeQuery.newIntRange( "age", 30, 40, true, false
) );
// And with sorting (quite verbose though)
myIndex.query( new QueryContext( NumericRangeQuery.newIntRange(
"age", 0, 100, true, true ) ).sort( new Sort( new SortField( "age",
SortField.INT ) ) ) );
So that you must know what you're doing... would that be ok or any other
better idea?
> /Andreas
>
>
>
> On Thu, Sep 23, 2010 at 11:21 AM, Mattias Persson
> wrote:
> > 2010/9/23 Mattias Persson
> >
> >> Btw I don't think lucene can do that kind of multiple-field sorting for
> >> you, or can it?
> >>
> >
> > Scratch that... you can do:
> >
> > myNodeIndex.query( new QueryContext( "name:*...@gmail.com" ).sort( new
> Sort(
> > new SortField( "name", SortField.STRING ) ) );
> >
> > that way you let Lucence sort the result for you on the key "name".
> >
> >
> >>
> >> 2010/9/23 Mattias Persson
> >>
> >> 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
> >>>
> >>> 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 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 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
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
That's really good news !
Does it also work if it was not indexes as Strings ? ( so that we can
sort integers or floats without any padding)
I guess that requires that neo4j-lucene adds NumericField instances to
the lucene document.
/Andreas
On Thu, Sep 23, 2010 at 11:21 AM, Mattias Persson
wrote:
> 2010/9/23 Mattias Persson
>
>> Btw I don't think lucene can do that kind of multiple-field sorting for
>> you, or can it?
>>
>
> Scratch that... you can do:
>
> myNodeIndex.query( new QueryContext( "name:*...@gmail.com" ).sort( new Sort(
> new SortField( "name", SortField.STRING ) ) );
>
> that way you let Lucence sort the result for you on the key "name".
>
>
>>
>> 2010/9/23 Mattias Persson
>>
>> 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
>>>
>>> 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 >>> >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 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 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
> >> ___
> >> Neo4j mailing list
> >> User@lists.neo4j.org
> >> https://lists.neo4j.org/mailman/listinfo/user
> >>
> > ___
> > Neo4j mailing list
> > User@lists.neo4j.org
> > https://lis
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
2010/9/23 Mattias Persson
> Btw I don't think lucene can do that kind of multiple-field sorting for
> you, or can it?
>
Scratch that... you can do:
myNodeIndex.query( new QueryContext( "name:*...@gmail.com" ).sort( new Sort(
new SortField( "name", SortField.STRING ) ) );
that way you let Lucence sort the result for you on the key "name".
>
> 2010/9/23 Mattias Persson
>
> 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
>>
>> 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 >> >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 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 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
>>> > >> ___
>>> > >> Neo4j mailing list
>>> > >> User@lists.neo4j.org
>>> > >> https://lists.neo4j.org/mailman/listinfo/user
>>> > >>
>>> > > ___
>>> > > Neo4j mailing list
>>> > > User@lists.neo4j.org
>>> > > https://lists.neo4j.org/mailman/listinfo/user
>>> > >
>>> > ___
>>> > Neo4j mailing list
>>> > User@lists.neo4j.org
>>> > https://lists.neo4j.org/mailman/listinfo/user
>>> >
>>> ___
>>> Neo4j mailing list
>>> User@lists.neo4j.org
>>> https://lists.neo4j.org/mailman/listinfo/user
>>>
>>
>>
>>
>> --
>> Mattias Persson, [matt...@neotechnology.com]
>> Hacker, Neo Technolog
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
Btw I don't think lucene can do that kind of multiple-field sorting for you,
or can it?
2010/9/23 Mattias Persson
> 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
>
> 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 > >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 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 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
>> > >> ___
>> > >> Neo4j mailing list
>> > >> User@lists.neo4j.org
>> > >> https://lists.neo4j.org/mailman/listinfo/user
>> > >>
>> > > ___
>> > > Neo4j mailing list
>> > > User@lists.neo4j.org
>> > > https://lists.neo4j.org/mailman/listinfo/user
>> > >
>> > ___
>> > Neo4j mailing list
>> > User@lists.neo4j.org
>> > https://lists.neo4j.org/mailman/listinfo/user
>> >
>> ___
>> Neo4j mailing list
>> User@lists.neo4j.org
>> https://lists.neo4j.org/mailman/listinfo/user
>>
>
>
>
> --
> Mattias Persson, [matt...@neotechnology.com]
> Hacker, Neo Technology
> www.neotechnology.com
>
--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
___
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
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
> 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 >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 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 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
> > >> ___
> > >> Neo4j mailing list
> > >> User@lists.neo4j.org
> > >> https://lists.neo4j.org/mailman/listinfo/user
> > >>
> > > ___
> > > Neo4j mailing list
> > > User@lists.neo4j.org
> > > https://lists.neo4j.org/mailman/listinfo/user
> > >
> > ___
> > Neo4j mailing list
> > User@lists.neo4j.org
> > https://lists.neo4j.org/mailman/listinfo/user
> >
> ___
> Neo4j mailing list
> User@lists.neo4j.org
> https://lists.neo4j.org/mailman/listinfo/user
>
--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
___
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
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 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 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 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 >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
> >> ___
> >> Neo4j mailing list
> >> User@lists.neo4j.org
> >> https://lists.neo4j.org/mailman/listinfo/user
> >>
> > ___
> > Neo4j mailing list
> > User@lists.neo4j.org
> > https://lists.neo4j.org/mailman/listinfo/user
> >
> ___
> Neo4j mailing list
> User@lists.neo4j.org
> https://lists.neo4j.org/mailman/listinfo/user
>
___
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
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 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 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
> 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
>> ___
>> Neo4j mailing list
>> User@lists.neo4j.org
>> https://lists.neo4j.org/mailman/listinfo/user
>>
> ___
> Neo4j mailing list
> User@lists.neo4j.org
> https://lists.neo4j.org/mailman/listinfo/user
>
___
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
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 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 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
> ___
> Neo4j mailing list
> User@lists.neo4j.org
> https://lists.neo4j.org/mailman/listinfo/user
>
___
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] How do I sort Lucene results by field value, and numerical range queries ?
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 ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
