Class SnowballPorterFilterFactory
java.lang.Object
org.apache.lucene.analysis.AbstractAnalysisFactory
org.apache.lucene.analysis.TokenFilterFactory
org.apache.lucene.analysis.snowball.SnowballPorterFilterFactory
- All Implemented Interfaces:
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>
- Since:
- 3.1
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate final String
static final String
SPI namestatic final String
private CharArraySet
private Class<? extends SnowballStemmer>
private final String
Fields inherited from class org.apache.lucene.analysis.AbstractAnalysisFactory
LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion
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Constructor Summary
ConstructorsConstructorDescriptionDefault ctor for compatibility with SPICreates a new SnowballPorterFilterFactory -
Method Summary
Modifier and TypeMethodDescriptioncreate
(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
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 Details
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NAME
SPI name- See Also:
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PROTECTED_TOKENS
- See Also:
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language
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wordFiles
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stemClass
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protectedWords
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Constructor Details
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SnowballPorterFilterFactory
Creates a new SnowballPorterFilterFactory -
SnowballPorterFilterFactory
public SnowballPorterFilterFactory()Default ctor for compatibility with SPI
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Method Details
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inform
Description copied from interface:ResourceLoaderAware
Initializes this component with the provided ResourceLoader (used for loading classes, files, etc).- Specified by:
inform
in interfaceResourceLoaderAware
- Throws:
IOException
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create
Description copied from class:TokenFilterFactory
Transform the specified input TokenStream- Specified by:
create
in classTokenFilterFactory
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