This did the trick. Thanks!
On Mon, May 23, 2011 at 5:03 PM, Markus Jelsma
<markus.jel...@openindex.io>wrote:
> Hmm. I don't add code to Apache packages but create my own packages and
> namespaces, build a jar and add it to the lib directory as specified in
> solrconfig. Then you can use the FQCN to in the similarity config to point
> to
> the class.
>
> May be it can work when messing inside the apache namespace but then you
> have
> to build Lucene as well.
>
>
> > Okay well this is encouraging. I changed SweetSpotSimilarity to
> > MyClassSimilarity. I created this class in:
> >
> > lucene/contrib/misc/src/java/org/apache/lucene/misc/
> >
> > I am getting a ClassNotFoundException when I try to start solr.
> >
> > Here is the contents of the MyClassSimilarity file:
> >
> > package org.apache.lucene.misc;
> > import org.apache.lucene.search.DefaultSimilarity;
> >
> > public class MyClassSimilarity extends DefaultSimilarity {
> > public MyClassSimilarity() { super(); }
> > public float idf(int a1, int a2) { return 1; }
> > }
> >
> > So then this raises two questions. Why am I getting a
> > classNotFoundException and how can I go about fixing it?
> >
> > Thanks,
> >
> > Brian Lamb
> >
> > On Mon, May 23, 2011 at 3:41 PM, Markus Jelsma
> >
> > <markus.jel...@openindex.io>wrote:
> > > As far as i know, SweetSpotSimilarty needs be configured. I did use it
> > > once but
> > > wrapped a factory around it to configure the sweet spot. It worked just
> > > as expected and explained in that paper about the subject.
> > >
> > > If you use a custom similarity that , for example, caps tf to 1. Does
> it
> > > then
> > > work?
> > >
> > > > Hi all,
> > > >
> > > > I'm having trouble getting the basic similarity example to work. If
> you
> > > > notice at the bottom of the schema.xml file, there is a line there
> that
> > >
> > > is
> > >
> > > > commented out:
> > > >
> > > > <!-- <similarity class="org.apache.lucene.search.DefaultSimilarity"/>
> > > > -->
> > > >
> > > > I uncomment that line and replace it with the following:
> > > >
> > > > <similarity class="org.apache.lucene.misc.SweetSpotSimilarity"/>
> > > >
> > > > Which comes natively with lucene. However, the scores before and
> after
> > > > making this change are the same. I did a full import both times but
> > > > that didn't seem to help.
> > > >
> > > > I ran svn up on both my solr directory and my lucene directory.
> > > > Actually, my lucene directory was not previously under svn so I
> > > > removed everything in there and did svn co
> > > > http://svn.apache.org/repos/asf/lucene/dev/trunk/lucene/
> > > >
> > > > So why isn't my installation taking the SweetSpot Similarity change?
> > > >
> > > > Thanks,
> > > >
> > > > Brian Lamb
>
