Hi,
I am trying to make a Lucene module for SKOS-based synonym expansion. As I
wanted to implement the Filter in SOLR, I get a ClassCastException.
So I tried to take one of the existing SOLR Filters and FilterFactories, change
the package information, compress into a jar and use it as a plugin.
But i get the same exception for classes that are SOLR's "own", if plugged in.
java.lang.ClassCastException:
at.ac.univie.mminf.luceneSKOS.solr.SynonymFilterFactory cannot be cast to
org.apache.solr.analysis.TokenFilterFactory
at org.apache.solr.schema.IndexSchema$5.init(IndexSchema.java:777)
.....
If I define <filter class="solr.SynonymFilterFactory"/> in schema.xml it works,
with <filter class="at.ac.univie.mminf.luceneSKOS.solr.SynonymFilterFactory"/>
which is the same file I get an exception.
I'm using the same dependencies as SOLR 1.4.1, because it caused problems with
newer versions of lucene-core.
Is there some step in plugging in new Filters I forgot?
I am grateful for any suggestions or advice.
Thank you,
Martin
