Example usage for org.apache.lucene.search.spell SpellChecker suggestSimilar

Introduction

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

Prototype

public String[] suggestSimilar(String word, int numSug, IndexReader ir, String field, SuggestMode suggestMode)
        throws IOException 

Source Link

Document

Calls #suggestSimilar(String,int,IndexReader,String,SuggestMode,float) suggestSimilar(word, numSug, ir, suggestMode, field, this.accuracy)

Usage

From source file:com.appeligo.lucene.DidYouMeanIndexer.java

License:Apache License

public static void createSpellIndex(String field, Directory originalIndexDirectory,
        Directory spellIndexDirectory) throws IOException {

    IndexReader indexReader = null;//  w w w.j  a va2s  .c  o  m
    try {
        indexReader = IndexReader.open(originalIndexDirectory);
        Dictionary dictionary = new LuceneDictionary(indexReader, field);
        SpellChecker spellChecker = new SpellChecker(spellIndexDirectory);
        spellChecker.indexDictionary(dictionary);
        if (log.isDebugEnabled()) {
            spellChecker = new SpellChecker(spellIndexDirectory); // need to re-open to see it work
            log.debug("Does 'next' exist in the dictionary? " + spellChecker.exist("next"));
            StringBuilder sb = new StringBuilder();
            for (String s : spellChecker.suggestSimilar("noxt", 5, indexReader, "compositeField", true)) {
                sb.append(s + ", ");
            }
            log.debug("Best suggestions for 'noxt': " + sb);
        }
    } finally {
        if (indexReader != null) {
            indexReader.close();
        }
    }
}

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From source file:org.capelin.transaction.dao.RecordDao.java

License:GNU General Public License

/**
 * Spell check the term from the field in index, return similar terms. If
 * the keyword is not tokenized, this will give the full name and function
 * like browse.//from   w  w  w  .  j a  v a2 s.  co  m
 * 
 * @param field
 * @param term
 * @return
 */
public String[] spellcheck(String field, String term) {
    SearchFactory searchFactory = Search.getFullTextSession(getSession()).getSearchFactory();
    DirectoryProvider<?> recordProvider = searchFactory.getDirectoryProviders(recordClass)[0];
    ReaderProvider readerProvider = searchFactory.getReaderProvider();
    IndexReader reader = readerProvider.openReader(recordProvider);
    String[] similars = null;
    try {
        SpellChecker spellchecker = new SpellChecker(recordProvider.getDirectory());
        spellchecker.indexDictionary(new LuceneDictionary(reader, field));
        spellchecker.setAccuracy(0.0001f);
        similars = spellchecker.suggestSimilar(term, getPageSize(), reader, field, true);
    } catch (IOException e) {
        log.error("Index not found: " + e);
    } finally {
        readerProvider.closeReader(reader);
    }
    return similars;
}

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