de.digitalcollections.solrocr.lucene

Class NonAlphaTrimFilterFactory

java.lang.Object

org.apache.lucene.analysis.util.AbstractAnalysisFactory

org.apache.lucene.analysis.util.TokenFilterFactory

de.digitalcollections.solrocr.lucene.NonAlphaTrimFilterFactory

public class NonAlphaTrimFilterFactory
extends org.apache.lucene.analysis.util.TokenFilterFactory

This filter trims leading and/or/ trailing non-letter characters from tokens. This is useful if you're using the whitespace tokenizer (e.g. because you need payloads), but want to have a similar post-processing as with the standard tokenizer.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NonAlphaTrimFilterFactory.NonAlphaTrimFilter

Field Summary

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

LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

Constructor Summary

Constructors

Constructor and Description
NonAlphaTrimFilterFactory(Map<String,String> args) Initialize this factory via a set of key-value pairs.

Method Summary

Modifier and Type	Method and Description
org.apache.lucene.analysis.TokenStream	create(org.apache.lucene.analysis.TokenStream input)

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

availableTokenFilters, forName, lookupClass, normalize, 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

Constructor Detail

NonAlphaTrimFilterFactory

public NonAlphaTrimFilterFactory(Map<String,String> args)

Initialize this factory via a set of key-value pairs.

Method Detail

create

public org.apache.lucene.analysis.TokenStream create(org.apache.lucene.analysis.TokenStream input)

Specified by:

create in class org.apache.lucene.analysis.util.TokenFilterFactory