Example usage for org.apache.lucene.search.spell DirectSpellChecker setLowerCaseTerms

Introduction

In this page you can find the example usage for org.apache.lucene.search.spell DirectSpellChecker setLowerCaseTerms.

Prototype

public void setLowerCaseTerms(boolean lowerCaseTerms) 

Source Link

Document

True if the spellchecker should lowercase terms (default: true)

This is a convenience method, if your index field has more complicated analysis (such as StandardTokenizer removing punctuation), it's probably better to turn this off, and instead run your query terms through your Analyzer first.

Usage

From source file:org.codelibs.elasticsearch.search.suggest.DirectSpellcheckerSettings.java

License:Apache License

public DirectSpellChecker createDirectSpellChecker() {

    DirectSpellChecker directSpellChecker = new DirectSpellChecker();
    directSpellChecker.setAccuracy(accuracy());
    Comparator<SuggestWord> comparator;
    switch (sort()) {
    case SCORE://  w w w  . j a  v  a  2  s . com
        comparator = SCORE_COMPARATOR;
        break;
    case FREQUENCY:
        comparator = LUCENE_FREQUENCY;
        break;
    default:
        throw new IllegalArgumentException("Illegal suggest sort: " + sort());
    }
    directSpellChecker.setComparator(comparator);
    directSpellChecker.setDistance(stringDistance());
    directSpellChecker.setMaxEdits(maxEdits());
    directSpellChecker.setMaxInspections(maxInspections());
    directSpellChecker.setMaxQueryFrequency(maxTermFreq());
    directSpellChecker.setMinPrefix(prefixLength());
    directSpellChecker.setMinQueryLength(minWordLength());
    directSpellChecker.setThresholdFrequency(minDocFreq());
    directSpellChecker.setLowerCaseTerms(false);
    return directSpellChecker;
}

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From source file:org.elasticsearch.search.suggest.SuggestUtils.java

License:Apache License

public static DirectSpellChecker getDirectSpellChecker(DirectSpellcheckerSettings suggestion) {

    DirectSpellChecker directSpellChecker = new DirectSpellChecker();
    directSpellChecker.setAccuracy(suggestion.accuracy());
    Comparator<SuggestWord> comparator;
    switch (suggestion.sort()) {
    case SCORE://from   www  . j  a  v  a  2s . co m
        comparator = SCORE_COMPARATOR;
        break;
    case FREQUENCY:
        comparator = LUCENE_FREQUENCY;
        break;
    default:
        throw new ElasticsearchIllegalArgumentException("Illegal suggest sort: " + suggestion.sort());
    }
    directSpellChecker.setComparator(comparator);
    directSpellChecker.setDistance(suggestion.stringDistance());
    directSpellChecker.setMaxEdits(suggestion.maxEdits());
    directSpellChecker.setMaxInspections(suggestion.maxInspections());
    directSpellChecker.setMaxQueryFrequency(suggestion.maxTermFreq());
    directSpellChecker.setMinPrefix(suggestion.prefixLength());
    directSpellChecker.setMinQueryLength(suggestion.minWordLength());
    directSpellChecker.setThresholdFrequency(suggestion.minDocFreq());
    directSpellChecker.setLowerCaseTerms(false);
    return directSpellChecker;
}

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