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Posted to java-user@lucene.apache.org by lu...@gobstopper.demon.co.uk on 2003/07/31 14:43:04 UTC
NLucene up to date ?
Hi all,
http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
Does anyone know if this source is still being maintained to be closer to the java developments ?
Was this an external project to Apache Jakarta ?
I (we) have just successfully released a search engine using a c# implmentation of Lucene. Code had to be brought up to date in line with recent java builds, and enhanced with additional features (eg field sorting, term position score factoring, etc).
Any other c# users who would like to see NLucene kept in line with the java version ?
Maybe I'm just being lazy with having to maintain my own version of Lucene =).
Surely there are others out there who are c# users and follow the mailing lists (I remember a Brian somewhere !) but seldom post.
Brendon
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Lucene.Net 1.3.rc1 now available from http://sourceforge.net/projects/lucenedotnet/
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
Lucene.Net 1.3.rc1 now available from
http://sourceforge.net/projects/lucenedotnet/
Lucene.Net is a complete up to date port of Lucene 1.3.rc1 without
any modifications and extentions of original Lucene code.
Lucene.Net includes all original Lucene demos and tests, but not all
work correct :)
For example, HTMLTest doesn't work.
Pasha
Lucene.Net 1.3.rc1 now available from http://sourceforge.net/projects/lucenedotnet/
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
Lucene.Net 1.3.rc1 now available from
http://sourceforge.net/projects/lucenedotnet/
Lucene.Net is a complete up to date port of Lucene 1.3.rc1 without
any modifications and extentions of original Lucene code.
Lucene.Net includes all original Lucene demos and tests, but not all
work correct :)
For example, HTMLTest doesn't work.
Pasha
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RE: NLucene up to date ? Lucene.Net is up to date.
Posted by lu...@gobstopper.demon.co.uk.
Excellent news.
Will you be keeping the source up to date with the java developments ?
Can't wait to get my hands on the source, yes that damn bit shift operator (unsigned ?) always worried me =)
Just by the way, would the .NET version have a similar style sandbox area where users can submit small add-on type functionality ?
For example, field sorting.
Would love to share the code for use and comment as this seems to be a common request.
Big thanks Pasha,
Brendon
fckdp@ok.ru wrote:
> Hi,
>
> > I talked to one of the maintainers of NLucene and he said
> > that he was planning on releasing a 1.2 version (not beta
> > apparently) in two months. That was back in June and I
> > haven't heard or seen anything since then so I cant really
> > say if it is still being actively developed. Sounds like you
> > are doing the same thing I am doing which is adding
> > functionality that you need on your own. I've also added a
> > few things to NLucene like multifield queries and the default
> > boolean operator setting.
>
> By the way, I hope that Lucene.Net 1.3rc1 will be available
> from http://sourceforge.net/ in this week. Lucene.Net is ready, but
> sourceforge is not :)
>
> Lucene.Net is a complete up to date port of Lucene 1.3rc1
> includes samples and demos (web demo also).
>
> A few differences between nLucene and Lucene.net are:
> 1. version of Lucene: Lucene.Net is a 1.3rc1, nLucene - is a 1.2
> 2. java code compatible: Lucene.Net only change naming notation, like
> "IndexWriter", nLucene
> implement some methods as a attributes and others
> 3. demos: Lucene.Net contain all of Lucene demos and tests include web
> demos. nLucene does not.
> 4. .NET Framework 1.1 and VS 2003 compatible
> 5. (for internal developer only): correct implement of >>> java operator
> :)
>
> Pasha
>
>
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> To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: lucene-user-help@jakarta.apache.org
>
>
RE: NLucene up to date ? Lucene.Net is up to date.
Posted by lu...@gobstopper.demon.co.uk.
Excellent news.
Will you be keeping the source up to date with the java developments ?
Can't wait to get my hands on the source, yes that damn bit shift operator (unsigned ?) always worried me =)
Just by the way, would the .NET version have a similar style sandbox area where users can submit small add-on type functionality ?
For example, field sorting.
Would love to share the code for use and comment as this seems to be a common request.
Big thanks Pasha,
Brendon
fckdp@ok.ru wrote:
> Hi,
>
> > I talked to one of the maintainers of NLucene and he said
> > that he was planning on releasing a 1.2 version (not beta
> > apparently) in two months. That was back in June and I
> > haven't heard or seen anything since then so I cant really
> > say if it is still being actively developed. Sounds like you
> > are doing the same thing I am doing which is adding
> > functionality that you need on your own. I've also added a
> > few things to NLucene like multifield queries and the default
> > boolean operator setting.
>
> By the way, I hope that Lucene.Net 1.3rc1 will be available
> from http://sourceforge.net/ in this week. Lucene.Net is ready, but
> sourceforge is not :)
>
> Lucene.Net is a complete up to date port of Lucene 1.3rc1
> includes samples and demos (web demo also).
>
> A few differences between nLucene and Lucene.net are:
> 1. version of Lucene: Lucene.Net is a 1.3rc1, nLucene - is a 1.2
> 2. java code compatible: Lucene.Net only change naming notation, like
> "IndexWriter", nLucene
> implement some methods as a attributes and others
> 3. demos: Lucene.Net contain all of Lucene demos and tests include web
> demos. nLucene does not.
> 4. .NET Framework 1.1 and VS 2003 compatible
> 5. (for internal developer only): correct implement of >>> java operator
> :)
>
> Pasha
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: lucene-user-help@jakarta.apache.org
>
>
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RE: NLucene up to date ? Lucene.Net is up to date.
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
> I talked to one of the maintainers of NLucene and he said
> that he was planning on releasing a 1.2 version (not beta
> apparently) in two months. That was back in June and I
> haven't heard or seen anything since then so I cant really
> say if it is still being actively developed. Sounds like you
> are doing the same thing I am doing which is adding
> functionality that you need on your own. I've also added a
> few things to NLucene like multifield queries and the default
> boolean operator setting.
By the way, I hope that Lucene.Net 1.3rc1 will be available
from http://sourceforge.net/ in this week. Lucene.Net is ready, but
sourceforge is not :)
Lucene.Net is a complete up to date port of Lucene 1.3rc1
includes samples and demos (web demo also).
A few differences between nLucene and Lucene.net are:
1. version of Lucene: Lucene.Net is a 1.3rc1, nLucene - is a 1.2
2. java code compatible: Lucene.Net only change naming notation, like
"IndexWriter", nLucene
implement some methods as a attributes and others
3. demos: Lucene.Net contain all of Lucene demos and tests include web
demos. nLucene does not.
4. .NET Framework 1.1 and VS 2003 compatible
5. (for internal developer only): correct implement of >>> java operator
:)
Pasha
RE: NLucene up to date ? Lucene.Net is up to date.
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
> I talked to one of the maintainers of NLucene and he said
> that he was planning on releasing a 1.2 version (not beta
> apparently) in two months. That was back in June and I
> haven't heard or seen anything since then so I cant really
> say if it is still being actively developed. Sounds like you
> are doing the same thing I am doing which is adding
> functionality that you need on your own. I've also added a
> few things to NLucene like multifield queries and the default
> boolean operator setting.
By the way, I hope that Lucene.Net 1.3rc1 will be available
from http://sourceforge.net/ in this week. Lucene.Net is ready, but
sourceforge is not :)
Lucene.Net is a complete up to date port of Lucene 1.3rc1
includes samples and demos (web demo also).
A few differences between nLucene and Lucene.net are:
1. version of Lucene: Lucene.Net is a 1.3rc1, nLucene - is a 1.2
2. java code compatible: Lucene.Net only change naming notation, like
"IndexWriter", nLucene
implement some methods as a attributes and others
3. demos: Lucene.Net contain all of Lucene demos and tests include web
demos. nLucene does not.
4. .NET Framework 1.1 and VS 2003 compatible
5. (for internal developer only): correct implement of >>> java operator
:)
Pasha
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Re: NLucene up to date ?
Posted by lu...@gobstopper.demon.co.uk.
Yes, given the lack of updating the c# version I thought users would be maintaining their own version in line with current developments. I too had to add those items you mentioned.
What I would like to see is all these 'implementations' consolidated and maintained regularly as per java.
I am not sure how widely known Lucene is in the .NET community - my guess it it isn't. A tried and tested Lucene .NET version will definitely help it reach other audiences.
I am pleased to hear Pasha (re)taking up the reigns.
Brendon
bmila@iastate.edu wrote:
> I talked to one of the maintainers of NLucene and he said that he was
> planning on releasing a 1.2 version (not beta apparently) in two months.
> That was back in June and I haven't heard or seen anything since then so I
> cant really say if it is still being actively developed. Sounds like you
> are doing the same thing I am doing which is adding functionality that you
> need on your own. I've also added a few things to NLucene like multifield
> queries and the default boolean operator setting.
>
> Brian
>
> > Hi all,
> >
> > http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
> > Does anyone know if this source is still being maintained to be closer to
> the java developments ?
> > Was this an external project to Apache Jakarta ?
> >
> > I (we) have just successfully released a search engine using a c#
> implmentation of Lucene. Code had to be brought up to date in line with
> recent java builds, and enhanced with additional features (eg field sorting,
> term position score factoring, etc).
> >
> > Any other c# users who would like to see NLucene kept in line with the
> java version ?
> >
> > Maybe I'm just being lazy with having to maintain my own version of Lucene
> =).
> > Surely there are others out there who are c# users and follow the mailing
> lists (I remember a Brian somewhere !) but seldom post.
> >
> > Brendon
> >
>
>
>
>
>
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> For additional commands, e-mail: lucene-user-help@jakarta.apache.org
>
>
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Re: NLucene up to date ?
Posted by lu...@gobstopper.demon.co.uk.
Yes, given the lack of updating the c# version I thought users would be maintaining their own version in line with current developments. I too had to add those items you mentioned.
What I would like to see is all these 'implementations' consolidated and maintained regularly as per java.
I am not sure how widely known Lucene is in the .NET community - my guess it it isn't. A tried and tested Lucene .NET version will definitely help it reach other audiences.
I am pleased to hear Pasha (re)taking up the reigns.
Brendon
bmila@iastate.edu wrote:
> I talked to one of the maintainers of NLucene and he said that he was
> planning on releasing a 1.2 version (not beta apparently) in two months.
> That was back in June and I haven't heard or seen anything since then so I
> cant really say if it is still being actively developed. Sounds like you
> are doing the same thing I am doing which is adding functionality that you
> need on your own. I've also added a few things to NLucene like multifield
> queries and the default boolean operator setting.
>
> Brian
>
> > Hi all,
> >
> > http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
> > Does anyone know if this source is still being maintained to be closer to
> the java developments ?
> > Was this an external project to Apache Jakarta ?
> >
> > I (we) have just successfully released a search engine using a c#
> implmentation of Lucene. Code had to be brought up to date in line with
> recent java builds, and enhanced with additional features (eg field sorting,
> term position score factoring, etc).
> >
> > Any other c# users who would like to see NLucene kept in line with the
> java version ?
> >
> > Maybe I'm just being lazy with having to maintain my own version of Lucene
> =).
> > Surely there are others out there who are c# users and follow the mailing
> lists (I remember a Brian somewhere !) but seldom post.
> >
> > Brendon
> >
>
>
>
>
>
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> To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: lucene-user-help@jakarta.apache.org
>
>
Re: NLucene up to date ?
Posted by Brian Mila <bm...@iastate.edu>.
I talked to one of the maintainers of NLucene and he said that he was
planning on releasing a 1.2 version (not beta apparently) in two months.
That was back in June and I haven't heard or seen anything since then so I
cant really say if it is still being actively developed. Sounds like you
are doing the same thing I am doing which is adding functionality that you
need on your own. I've also added a few things to NLucene like multifield
queries and the default boolean operator setting.
Brian
> Hi all,
>
> http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
> Does anyone know if this source is still being maintained to be closer to
the java developments ?
> Was this an external project to Apache Jakarta ?
>
> I (we) have just successfully released a search engine using a c#
implmentation of Lucene. Code had to be brought up to date in line with
recent java builds, and enhanced with additional features (eg field sorting,
term position score factoring, etc).
>
> Any other c# users who would like to see NLucene kept in line with the
java version ?
>
> Maybe I'm just being lazy with having to maintain my own version of Lucene
=).
> Surely there are others out there who are c# users and follow the mailing
lists (I remember a Brian somewhere !) but seldom post.
>
> Brendon
>
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Re: NLucene up to date ?
Posted by Brian Mila <bm...@iastate.edu>.
I talked to one of the maintainers of NLucene and he said that he was
planning on releasing a 1.2 version (not beta apparently) in two months.
That was back in June and I haven't heard or seen anything since then so I
cant really say if it is still being actively developed. Sounds like you
are doing the same thing I am doing which is adding functionality that you
need on your own. I've also added a few things to NLucene like multifield
queries and the default boolean operator setting.
Brian
> Hi all,
>
> http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
> Does anyone know if this source is still being maintained to be closer to
the java developments ?
> Was this an external project to Apache Jakarta ?
>
> I (we) have just successfully released a search engine using a c#
implmentation of Lucene. Code had to be brought up to date in line with
recent java builds, and enhanced with additional features (eg field sorting,
term position score factoring, etc).
>
> Any other c# users who would like to see NLucene kept in line with the
java version ?
>
> Maybe I'm just being lazy with having to maintain my own version of Lucene
=).
> Surely there are others out there who are c# users and follow the mailing
lists (I remember a Brian somewhere !) but seldom post.
>
> Brendon
>
RE: Error: "Docs out of order" - why?
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
> I index my documents, then call writer.optimize and receive
> this exception. What the reason for it?
My be the Reason is: WhitespaceTokenizer + a lot of multilanguage texts
with garbage and digits. The example of garbage is: "Lu?y cla ims to. I
do#'t kn?w abo ut Nlucen e, b ut it sh ould. An ypor t".
I don't know why but the code with StopAnalyzer work correct.
Pasha
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RE: Error: "Docs out of order" - why?
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
> I index my documents, then call writer.optimize and receive
> this exception. What the reason for it?
My be the Reason is: WhitespaceTokenizer + a lot of multilanguage texts
with garbage and digits. The example of garbage is: "Lu?y cla ims to. I
do#'t kn?w abo ut Nlucen e, b ut it sh ould. An ypor t".
I don't know why but the code with StopAnalyzer work correct.
Pasha
Error: "Docs out of order" - why?
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
I index my documents, then call writer.optimize and receive this
exception.
What the reason for it?
Pasha
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RE: NLucene up to date ?
Posted by lu...@gobstopper.demon.co.uk.
No additional classes have been created.
The functionality was simply implemented via new properties and method overloading, so original signatures remain intact.
As far as supporting future versions, I cannot say as I will no longer be using it at work. Keeping the c# version in line with java would have to be done in my own time, so no guarantees.
Taking the 1.2b2 source I only brought in the fixes, enhancements, etc that affected how I was using Lucene. I keep up with the nightly builds on a regular basis and update the c# source where appropriate, so any bugs should have been rectified.
Brendon
fckdp@ok.ru wrote:
> Hi,
>
> > From: lucene@gobstopper.demon.co.uk
>
> > I (we) have just successfully released a search engine using
> > a c# implmentation of Lucene. Code had to be brought up to
> > date in line with recent java builds, and enhanced with
> > additional features (eg field sorting, term position score
> > factoring, etc).
>
> Is it hard-code additional or new classes?
> Are you going to support new versions of lucene?
>
> Pasha
>
> P.s nLucene is lucene 1.2 based with old bugs and not supported.
>
>
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RE: NLucene up to date ?
Posted by lu...@gobstopper.demon.co.uk.
No additional classes have been created.
The functionality was simply implemented via new properties and method overloading, so original signatures remain intact.
As far as supporting future versions, I cannot say as I will no longer be using it at work. Keeping the c# version in line with java would have to be done in my own time, so no guarantees.
Taking the 1.2b2 source I only brought in the fixes, enhancements, etc that affected how I was using Lucene. I keep up with the nightly builds on a regular basis and update the c# source where appropriate, so any bugs should have been rectified.
Brendon
fckdp@ok.ru wrote:
> Hi,
>
> > From: lucene@gobstopper.demon.co.uk
>
> > I (we) have just successfully released a search engine using
> > a c# implmentation of Lucene. Code had to be brought up to
> > date in line with recent java builds, and enhanced with
> > additional features (eg field sorting, term position score
> > factoring, etc).
>
> Is it hard-code additional or new classes?
> Are you going to support new versions of lucene?
>
> Pasha
>
> P.s nLucene is lucene 1.2 based with old bugs and not supported.
>
>
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> To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org
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>
>
RE: NLucene up to date ?
Posted by Pasha Bizhan <fc...@ok.ru>.
Hi,
> From: lucene@gobstopper.demon.co.uk
> I (we) have just successfully released a search engine using
> a c# implmentation of Lucene. Code had to be brought up to
> date in line with recent java builds, and enhanced with
> additional features (eg field sorting, term position score
> factoring, etc).
Is it hard-code additional or new classes?
Are you going to support new versions of lucene?
Pasha
P.s nLucene is lucene 1.2 based with old bugs and not supported.
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Re: NLucene up to date ?
Posted by lu...@gobstopper.demon.co.uk.
Replies to Erik and Scott inline.
scott.ganyo@etapestry.com wrote:
> Do these implementations maintain file compatibility with the Java version?
>
> Scott
Yes and no, explanation will help me explain.
The field ordering functionality required additional files to be created at index time if the Document.Field property indicates so.
At search time, the entire contents of the 'field sorting' files are read in. As the IndexReader is shared for all client calls (for a pre-defined period of time as the index has been implemented 'incremental' style) this cost is only incurred once.
Code-wise, the technique follows the pattern for the Normalisation byte writing and reading, the difference being an Int being written. Yes, there is a memory usage hit, but the performance and functionality offered offsets this.
All other file formats remain identical.
I have coded LuceNET (!) so that it gracefully continues if the index segments do not have these additional 'sorting' files (naming convention like the normalisation files).
> Erik Hatcher wrote:
>
> > I'd love to see there be quality implementations of the Lucene API in
> > other languages, that are up to date with the latest Java codebase.
> >
> > I'm embarking on a Ruby port, which I'm hosting at rubyforge.org.
> > There is a Python version called Lupy.
> >
> > A related question I have is what about performance comparisons
> > between the different language implementations? Will Java be the
> > fastest? Is there a test suite already available that can demonstrate
> > the performance characteristics of a particular implementation? I'd
> > love to see the numbers and see if even the Java version can be beat.
> >
> > Erik
Performance wise, queries typically run in hundreths of seconds.
Including term position in the scoring impacted the timings as expected.
Indexing takes time, but then this wasn't really part of the design goals.
As far as comparing to the java implementation in terms in performance, I haven't tried as this workplace is a MS shop.
Java vs c# all over ? Just kidding =)
> >
> >
> > On Thursday, July 31, 2003, at 08:43 AM,
> > lucene@gobstopper.demon.co.uk wrote:
> >
> >> Hi all,
> >>
> >> http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
> >> Does anyone know if this source is still being maintained to be
> >> closer to the java developments ?
> >> Was this an external project to Apache Jakarta ?
> >>
> >> I (we) have just successfully released a search engine using a c#
> >> implmentation of Lucene. Code had to be brought up to date in line
> >> with recent java builds, and enhanced with additional features (eg
> >> field sorting, term position score factoring, etc).
> >>
> >> Any other c# users who would like to see NLucene kept in line with
> >> the java version ?
> >>
> >> Maybe I'm just being lazy with having to maintain my own version of
> >> Lucene =).
> >> Surely there are others out there who are c# users and follow the
> >> mailing lists (I remember a Brian somewhere !) but seldom post.
> >>
> >> Brendon
> >
>
>
>
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Re: NLucene up to date ?
Posted by Erik Hatcher <li...@ehatchersolutions.com>.
On Thursday, July 31, 2003, at 11:22 AM, Scott Ganyo wrote:
> Do these implementations maintain file compatibility with the Java
> version?
Lupy claims to. I don't know about NLucene, but it should. Any port
of Lucene to another language should (out of respect and common-sense)
maintain index file compatibility. Any implementation that doesn't -
well, we just won't list them on the resources page :)
Erik
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Re: NLucene up to date ?
Posted by Scott Ganyo <sc...@etapestry.com>.
Do these implementations maintain file compatibility with the Java version?
Scott
Erik Hatcher wrote:
> I'd love to see there be quality implementations of the Lucene API in
> other languages, that are up to date with the latest Java codebase.
>
> I'm embarking on a Ruby port, which I'm hosting at rubyforge.org.
> There is a Python version called Lupy.
>
> A related question I have is what about performance comparisons
> between the different language implementations? Will Java be the
> fastest? Is there a test suite already available that can demonstrate
> the performance characteristics of a particular implementation? I'd
> love to see the numbers and see if even the Java version can be beat.
>
> Erik
>
>
>
> On Thursday, July 31, 2003, at 08:43 AM,
> lucene@gobstopper.demon.co.uk wrote:
>
>> Hi all,
>>
>> http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
>> Does anyone know if this source is still being maintained to be
>> closer to the java developments ?
>> Was this an external project to Apache Jakarta ?
>>
>> I (we) have just successfully released a search engine using a c#
>> implmentation of Lucene. Code had to be brought up to date in line
>> with recent java builds, and enhanced with additional features (eg
>> field sorting, term position score factoring, etc).
>>
>> Any other c# users who would like to see NLucene kept in line with
>> the java version ?
>>
>> Maybe I'm just being lazy with having to maintain my own version of
>> Lucene =).
>> Surely there are others out there who are c# users and follow the
>> mailing lists (I remember a Brian somewhere !) but seldom post.
>>
>> Brendon
>
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Re: NLucene up to date ?
Posted by Erik Hatcher <li...@ehatchersolutions.com>.
I'd love to see there be quality implementations of the Lucene API in
other languages, that are up to date with the latest Java codebase.
I'm embarking on a Ruby port, which I'm hosting at rubyforge.org.
There is a Python version called Lupy.
A related question I have is what about performance comparisons between
the different language implementations? Will Java be the fastest? Is
there a test suite already available that can demonstrate the
performance characteristics of a particular implementation? I'd love
to see the numbers and see if even the Java version can be beat.
Erik
On Thursday, July 31, 2003, at 08:43 AM, lucene@gobstopper.demon.co.uk
wrote:
> Hi all,
>
> http://sourceforge.net/projects/nlucene/ has a version numbered 1.2b2.
> Does anyone know if this source is still being maintained to be closer
> to the java developments ?
> Was this an external project to Apache Jakarta ?
>
> I (we) have just successfully released a search engine using a c#
> implmentation of Lucene. Code had to be brought up to date in line
> with recent java builds, and enhanced with additional features (eg
> field sorting, term position score factoring, etc).
>
> Any other c# users who would like to see NLucene kept in line with the
> java version ?
>
> Maybe I'm just being lazy with having to maintain my own version of
> Lucene =).
> Surely there are others out there who are c# users and follow the
> mailing lists (I remember a Brian somewhere !) but seldom post.
>
> Brendon
>
>
>
>
>
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> To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org
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