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>
 

Since:

3.1

SPI Name (Note: This is case-insensitive. e.g., if the name is 'htmlStrip', 'htmlstrip' can be used when looking up the service):

"pathHierarchy"

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME SPI name

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

LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
Tokenizer	create(AttributeFactory factory) Creates a TokenStream of the specified input using the given AttributeFactory

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

availableTokenizers, create, findSPIName, forName, lookupClass, reloadTokenizers

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

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, splitAt, splitFileNames

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

SPI name

See Also:

Constant Field Values

Constructor Detail

PathHierarchyTokenizerFactory

public PathHierarchyTokenizerFactory(Map<String,String> args)

Creates a new PathHierarchyTokenizerFactory

Method Detail

create

public Tokenizer create(AttributeFactory factory)

Description copied from class: TokenizerFactory

Creates a TokenStream of the specified input using the given AttributeFactory

Specified by:

create in class TokenizerFactory