org.apache.solr.analysis
Class TrieTokenizerFactory

java.lang.Object
  org.apache.lucene.analysis.util.AbstractAnalysisFactory
      org.apache.lucene.analysis.util.TokenizerFactory
          org.apache.solr.analysis.TrieTokenizerFactory

public class TrieTokenizerFactory
extends TokenizerFactory

Tokenizer for trie fields. It uses NumericTokenStream to create multiple trie encoded string per number. Each string created by this tokenizer for a given number differs from the previous by the given precisionStep. For query time token streams that only contain the highest precision term, use 32/64 as precisionStep.

Refer to NumericRangeQuery for more details.

Since:

solr 1.4

See Also:

NumericRangeQuery, TrieField

Field Summary

protected int	precisionStep
protected TrieField.TrieTypes	type

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

LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

Constructor Summary

TrieTokenizerFactory(TrieField.TrieTypes type, int precisionStep)

Method Summary

org.apache.solr.analysis.TrieTokenizer

create(AttributeSource.AttributeFactory factory, Reader input)

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

availableTokenizers, create, forName, lookupClass, reloadTokenizers

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

precisionStep

protected final int precisionStep

type

protected final TrieField.TrieTypes type

Constructor Detail

TrieTokenizerFactory

public TrieTokenizerFactory(TrieField.TrieTypes type,
                            int precisionStep)

Method Detail

create

public org.apache.solr.analysis.TrieTokenizer create(AttributeSource.AttributeFactory factory,
                                                     Reader input)

Specified by:

create in class TokenizerFactory