Package org.apache.lucene.analysis.core

Class UpperCaseFilterFactory

java.lang.Object

org.apache.lucene.analysis.util.AbstractAnalysisFactory

org.apache.lucene.analysis.util.TokenFilterFactory

org.apache.lucene.analysis.core.UpperCaseFilterFactory

public class UpperCaseFilterFactory
extends TokenFilterFactory

Factory for UpperCaseFilter.

 <fieldType name="text_uppercase" class="solr.TextField" positionIncrementGap="100">
   <analyzer>
     <tokenizer class="solr.WhitespaceTokenizerFactory"/>
     <filter class="solr.UpperCaseFilterFactory"/>
   </analyzer>
 </fieldType>

NOTE: In Unicode, this transformation may lose information when the upper case character represents more than one lower case character. Use this filter when you require uppercase tokens. Use the LowerCaseFilterFactory for general search matching

Since:

4.7.0

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME	SPI name

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

LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
TokenStream	create(TokenStream input)	Transform the specified input TokenStream
TokenStream	normalize(TokenStream input)	Normalize the specified input TokenStream While the default implementation returns input unchanged, filters that should be applied at normalization time can delegate to create method.

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

availableTokenFilters, findSPIName, forName, lookupClass, reloadTokenFilters

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 Details

NAME

public static final String NAME

SPI name

See Also:

• Constant Field Values

Constructor Details

UpperCaseFilterFactory

public UpperCaseFilterFactory(Map<String,String> args)

Creates a new UpperCaseFilterFactory

Method Details

create

public TokenStream create(TokenStream input)

Description copied from class: TokenFilterFactory

Transform the specified input TokenStream

Specified by:

create in class TokenFilterFactory

normalize

public TokenStream normalize(TokenStream input)

Description copied from class: TokenFilterFactory

Normalize the specified input TokenStream While the default implementation returns input unchanged, filters that should be applied at normalization time can delegate to create method.

Overrides:

normalize in class TokenFilterFactory