## org.apache.lucene.analysis.snowball
Class SnowballPorterFilterFactory

    java.lang.Object
      org.apache.lucene.analysis.util.AbstractAnalysisFactory
          org.apache.lucene.analysis.util.TokenFilterFactory
              org.apache.lucene.analysis.snowball.SnowballPorterFilterFactory

All Implemented Interfaces:
  ResourceLoaderAware

    public class SnowballPorterFilterFactory

extends TokenFilterFactory
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>

Field Summary
`static String` `PROTECTED_TOKENS`

Fields inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory
`LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion`

Constructor Summary
`SnowballPorterFilterFactory(Map<String,String> args)` Creates a new SnowballPorterFilterFactory

Method Summary
`TokenFilter` `create(TokenStream input)` Transform the specified input TokenStream
`void` `inform(ResourceLoader loader)` Initializes this component with the provided ResourceLoader (used for loading classes, files, etc).

Methods inherited from class org.apache.lucene.analysis.util.TokenFilterFactory
`availableTokenFilters, forName, lookupClass, reloadTokenFilters`

Methods inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory
`assureMatchVersion, 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, splitFileNames`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### PROTECTED_TOKENS

    public static final String PROTECTED_TOKENS

See Also:
  Constant Field Values

Constructor Detail

### SnowballPorterFilterFactory

    public SnowballPorterFilterFactory(Map<String,String> args)

  Creates a new SnowballPorterFilterFactory

Method Detail

### inform

    public void inform(ResourceLoader loader)
                throws IOException

  Description copied from interface: `ResourceLoaderAware`
  Initializes this component with the provided ResourceLoader (used for loading classes, files, etc).

  Specified by:
    `inform` in interface `ResourceLoaderAware`
  Throws:
    `IOException`

### create

    public TokenFilter create(TokenStream input)

  Description copied from class: `TokenFilterFactory`
  Transform the specified input TokenStream

  Specified by:
    `create` in class `TokenFilterFactory`

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