org.apache.solr.analysis

Class SnowballPorterFilterFactory

java.lang.Object

org.apache.solr.analysis.BaseTokenStreamFactory

org.apache.solr.analysis.BaseTokenFilterFactory

org.apache.solr.analysis.SnowballPorterFilterFactory

All Implemented Interfaces:

TokenFilterFactory, ResourceLoaderAware

public class SnowballPorterFilterFactory
extends BaseTokenFilterFactory
implements ResourceLoaderAware

Factory for SnowballFilter, with configurable language

Note: Use of the "Lovins" stemmer is not recommended, as it is implemented with reflection.

 <fieldType name="text_snowballstem" class="solr.TextField" positionIncrementGap="100">
   <analyzer>
     <tokenizer class="solr.StandardTokenizerFactory"/>
     <filter class="solr.LowerCaseFilterFactory"/>
     <filter class="solr.SnowballPorterFilterFactory" protected="protectedkeyword.txt" language="English"/>
   </analyzer>
 </fieldType>

Version:

$Id: SnowballPorterFilterFactory.java 1074243 2011-02-24 18:07:16Z rmuir $

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	language
static java.lang.String	PROTECTED_TOKENS
private org.apache.lucene.analysis.CharArraySet	protectedWords
private java.lang.Class<?>	stemClass

Fields inherited from class org.apache.solr.analysis.BaseTokenFilterFactory

log

Fields inherited from class org.apache.solr.analysis.BaseTokenStreamFactory

args, luceneMatchVersion

Constructor Summary

Constructors

Constructor and Description
SnowballPorterFilterFactory()

Method Summary

Modifier and Type	Method and Description
org.apache.lucene.analysis.TokenFilter	create(org.apache.lucene.analysis.TokenStream input) Transform the specified input TokenStream
void	inform(ResourceLoader loader)
void	init(java.util.Map<java.lang.String,java.lang.String> args) init will be called just once, immediately after creation.

Methods inherited from class org.apache.solr.analysis.BaseTokenStreamFactory

assureMatchVersion, getArgs, getBoolean, getBoolean, getInt, getInt, getInt, getSnowballWordSet, getWordSet, warnDeprecated

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.analysis.TokenFilterFactory

getArgs

Field Detail

PROTECTED_TOKENS

public static final java.lang.String PROTECTED_TOKENS

See Also:

Constant Field Values

language

private java.lang.String language

stemClass

private java.lang.Class<?> stemClass

protectedWords

private org.apache.lucene.analysis.CharArraySet protectedWords

Constructor Detail

SnowballPorterFilterFactory

public SnowballPorterFilterFactory()

Method Detail

inform

public void inform(ResourceLoader loader)

Specified by:

inform in interface ResourceLoaderAware

init

public void init(java.util.Map<java.lang.String,java.lang.String> args)

Description copied from interface: TokenFilterFactory

init will be called just once, immediately after creation.

The args are user-level initialization parameters that may be specified when declaring the factory in the schema.xml

Specified by:

init in interface TokenFilterFactory

Overrides:

init in class BaseTokenStreamFactory

create

public org.apache.lucene.analysis.TokenFilter create(org.apache.lucene.analysis.TokenStream input)

Description copied from interface: TokenFilterFactory

Transform the specified input TokenStream

Specified by:

create in interface TokenFilterFactory