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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: LocalLucene/Lucene Spatial
Date Mon, 20 Apr 2009 08:59:36 GMT
Have you thought about subclassing MultiTermQuery and provide a
FilteredTermEnum? When you do this, the query can be either BooleanQuery or
a Filter.

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de

> -----Original Message-----
> From: patrick o'leary [mailto:pjaol@pjaol.com]
> Sent: Monday, April 20, 2009 3:33 AM
> To: java-user@lucene.apache.org
> Subject: Re: LocalLucene/Lucene Spatial
> 
> 1) The only reason for ConstantScoreQuery is because it lets me convert
> the
> LocalLucene filter to a query.
> 
> 2) TierRangeQuery- not at the moment, we're not really doing a range
> search,
> we're pulling predefined id's (e.g. a shape) from the index using the term
> enumerator.
> 
> Average time take for a bounding box shape lookup is in the order of 3 to
> 4
> ms, repeating that with a lat / long bounding box, and your looking at
> 100+
> ms. Been there, done that.
> 
> As for bitsets, I'm looking at openbitset, but the getDocSetId is causing
> me
> some problems with a QueryWrapperFilter, where I'm intersecting the text
> search with the bounding shape
> filter pre-distance filter..
> 
> The reality is the heaviest part is the DistanceFilter- not the bounding
> box
> part.
> 
> On Sun, Apr 19, 2009 at 8:06 PM, John Wang <john.wang@gmail.com> wrote:
> 
> > Is there a reason the Query build is from a bitset via a
> ConstantScoreQuery
> > instead a RangeQuery? Seems we would be paying a penalty for loading the
> > bitset, esp the bitset would be rather sparse.
> >
> > Furthermore, is TrieRangeQuery planning to be somehow used in the
> spatial
> > package?
> >
> > Thanks
> >
> > -John
> >
> > On Wed, Mar 18, 2009 at 11:10 AM, Grant Ingersoll <gsingers@apache.org
> > >wrote:
> >
> > > In the trunk, see contrib/spatial.  I believe it is all committed and
> > being
> > > worked on by interested contributors:
> > > http://svn.apache.org/repos/asf/lucene/java/trunk/contrib/spatial/
> > >
> > > -Grant
> > >
> > >
> > > On Mar 18, 2009, at 12:05 PM, Jamie Johnson wrote:
> > >
> > >  I am working on a project that is already using Lucene (through
> > Hibernate
> > >> Search) to perform full text queries and have since come across
> several
> > >> sites with information about LocalLucene/Lucene Spatial.  I was
> > wondering
> > >> if
> > >> there was a timeline for having this work implemented that anyone was
> > >> aware
> > >> of?
> > >>
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >
> > >
> >


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