org.apache.solr.analysis

Class NGramTokenizerFactory

java.lang.Object

org.apache.solr.analysis.BaseTokenStreamFactory

org.apache.solr.analysis.BaseTokenizerFactory

org.apache.solr.analysis.NGramTokenizerFactory

All Implemented Interfaces:

TokenizerFactory

public class NGramTokenizerFactory
extends BaseTokenizerFactory

Factory for NGramTokenizer.

 <fieldType name="text_ngrm" class="solr.TextField" positionIncrementGap="100">
   <analyzer>
     <tokenizer class="solr.NGramTokenizerFactory" minGramSize="1" maxGramSize="2"/>
   </analyzer>
 </fieldType>

Version:

$Id$

Field Summary

Fields

Modifier and Type	Field and Description
private int	maxGramSize
private int	minGramSize

Fields inherited from class org.apache.solr.analysis.BaseTokenizerFactory

log

Fields inherited from class org.apache.solr.analysis.BaseTokenStreamFactory

args, luceneMatchVersion

Constructor Summary

Constructors

Constructor and Description
NGramTokenizerFactory()

Method Summary

Modifier and Type	Method and Description
org.apache.lucene.analysis.ngram.NGramTokenizer	create(java.io.Reader input) Creates the TokenStream of n-grams from the given Reader.
void	init(java.util.Map<java.lang.String,java.lang.String> args) Initializes the n-gram min and max sizes and the side from which one should start tokenizing.

Methods inherited from class org.apache.solr.analysis.BaseTokenStreamFactory

assureMatchVersion, getArgs, getBoolean, getBoolean, getInt, getInt, getInt, getSnowballWordSet, getWordSet, warnDeprecated

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.solr.analysis.TokenizerFactory

getArgs

Field Detail

maxGramSize

private int maxGramSize

minGramSize

private int minGramSize

Constructor Detail

NGramTokenizerFactory

public NGramTokenizerFactory()

Method Detail

init

public void init(java.util.Map<java.lang.String,java.lang.String> args)

Initializes the n-gram min and max sizes and the side from which one should start tokenizing.

Specified by:

init in interface TokenizerFactory

Overrides:

init in class BaseTokenStreamFactory

create

public org.apache.lucene.analysis.ngram.NGramTokenizer create(java.io.Reader input)

Creates the TokenStream of n-grams from the given Reader.