public class SnowballPorterFilterFactory extends BaseTokenFilterFactory implements ResourceLoaderAware
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>
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 |
log
args, luceneMatchVersion
Constructor and Description |
---|
SnowballPorterFilterFactory() |
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. |
assureMatchVersion, getArgs, getBoolean, getBoolean, getInt, getInt, getInt, getSnowballWordSet, getWordSet, warnDeprecated
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getArgs
public static final java.lang.String PROTECTED_TOKENS
private java.lang.String language
private java.lang.Class<?> stemClass
private org.apache.lucene.analysis.CharArraySet protectedWords
public void inform(ResourceLoader loader)
inform
in interface ResourceLoaderAware
public void init(java.util.Map<java.lang.String,java.lang.String> args)
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
init
in interface TokenFilterFactory
init
in class BaseTokenStreamFactory
public org.apache.lucene.analysis.TokenFilter create(org.apache.lucene.analysis.TokenStream input)
TokenFilterFactory
create
in interface TokenFilterFactory