org.apache.lucene.analysis.path
Class PathHierarchyTokenizerFactory

java.lang.Object
  org.apache.lucene.analysis.util.AbstractAnalysisFactory
      org.apache.lucene.analysis.util.TokenizerFactory
          org.apache.lucene.analysis.path.PathHierarchyTokenizerFactory

public class PathHierarchyTokenizerFactory
extends TokenizerFactory

Factory for PathHierarchyTokenizer.

This factory is typically configured for use only in the index Analyzer (or only in the query Analyzer, but never both).

For example, in the configuration below a query for Books/NonFic will match documents indexed with values like Books/NonFic, Books/NonFic/Law, Books/NonFic/Science/Physics, etc. But it will not match documents indexed with values like Books, or Books/Fic...

 <fieldType name="descendent_path" class="solr.TextField">
   <analyzer type="index">
     <tokenizer class="solr.PathHierarchyTokenizerFactory" delimiter="/" />
   </analyzer>
   <analyzer type="query">
     <tokenizer class="solr.KeywordTokenizerFactory" />
   </analyzer>
 </fieldType>
 

In this example however we see the oposite configuration, so that a query for Books/NonFic/Science/Physics would match documents containing Books/NonFic, Books/NonFic/Science, or Books/NonFic/Science/Physics, but not Books/NonFic/Science/Physics/Theory or Books/NonFic/Law.

 <fieldType name="descendent_path" class="solr.TextField">
   <analyzer type="index">
     <tokenizer class="solr.KeywordTokenizerFactory" />
   </analyzer>
   <analyzer type="query">
     <tokenizer class="solr.PathHierarchyTokenizerFactory" delimiter="/" />
   </analyzer>
 </fieldType>
 

Field Summary

Fields inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory

LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

Constructor Summary

PathHierarchyTokenizerFactory(Map<String,String> args)
Creates a new PathHierarchyTokenizerFactory

Method Summary

Tokenizer

create(AttributeSource.AttributeFactory factory, Reader input) Creates a TokenStream of the specified input using the given AttributeFactory

Methods inherited from class org.apache.lucene.analysis.util.TokenizerFactory

availableTokenizers, create, forName, lookupClass, reloadTokenizers

Methods inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory

assureMatchVersion, get, get, get, get, get, getBoolean, getChar, getClassArg, getFloat, getInt, getLines, getLuceneMatchVersion, getOriginalArgs, getPattern, getSet, getSnowballWordSet, getWordSet, isExplicitLuceneMatchVersion, require, require, require, requireBoolean, requireChar, requireFloat, requireInt, setExplicitLuceneMatchVersion, splitFileNames

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PathHierarchyTokenizerFactory

public PathHierarchyTokenizerFactory(Map<String,String> args)

Creates a new PathHierarchyTokenizerFactory

Method Detail

create

public Tokenizer create(AttributeSource.AttributeFactory factory,
                        Reader input)

Description copied from class: TokenizerFactory

Creates a TokenStream of the specified input using the given AttributeFactory

Specified by:

create in class TokenizerFactory