Class SnowballPorterFilterFactory
- java.lang.Object
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- org.apache.lucene.analysis.AbstractAnalysisFactory
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- org.apache.lucene.analysis.TokenFilterFactory
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- org.apache.lucene.analysis.snowball.SnowballPorterFilterFactory
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- All Implemented Interfaces:
ResourceLoaderAware
public class SnowballPorterFilterFactory extends TokenFilterFactory implements ResourceLoaderAware
Factory forSnowballFilter
, with configurable languageNote: 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>
- Since:
- 3.1
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
language
static java.lang.String
NAME
SPI namestatic java.lang.String
PROTECTED_TOKENS
private CharArraySet
protectedWords
private java.lang.Class<? extends SnowballStemmer>
stemClass
private java.lang.String
wordFiles
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Fields inherited from class org.apache.lucene.analysis.AbstractAnalysisFactory
LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion
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Constructor Summary
Constructors Constructor Description SnowballPorterFilterFactory()
Default ctor for compatibility with SPISnowballPorterFilterFactory(java.util.Map<java.lang.String,java.lang.String> args)
Creates a new SnowballPorterFilterFactory
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description TokenFilter
create(TokenStream input)
Transform the specified input TokenStreamvoid
inform(ResourceLoader loader)
Initializes this component with the provided ResourceLoader (used for loading classes, files, etc).-
Methods inherited from class org.apache.lucene.analysis.TokenFilterFactory
availableTokenFilters, findSPIName, forName, lookupClass, normalize, reloadTokenFilters
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Methods inherited from class org.apache.lucene.analysis.AbstractAnalysisFactory
defaultCtorException, 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
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Field Detail
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NAME
public static final java.lang.String NAME
SPI name- See Also:
- Constant Field Values
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PROTECTED_TOKENS
public static final java.lang.String PROTECTED_TOKENS
- See Also:
- Constant Field Values
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language
private final java.lang.String language
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wordFiles
private final java.lang.String wordFiles
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stemClass
private java.lang.Class<? extends SnowballStemmer> stemClass
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protectedWords
private CharArraySet protectedWords
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Method Detail
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inform
public void inform(ResourceLoader loader) throws java.io.IOException
Description copied from interface:ResourceLoaderAware
Initializes this component with the provided ResourceLoader (used for loading classes, files, etc).- Specified by:
inform
in interfaceResourceLoaderAware
- Throws:
java.io.IOException
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create
public TokenFilter create(TokenStream input)
Description copied from class:TokenFilterFactory
Transform the specified input TokenStream- Specified by:
create
in classTokenFilterFactory
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