Example usage for org.apache.lucene.search FuzzyTermsEnum FuzzyTermsEnum

Introduction

In this page you can find the example usage for org.apache.lucene.search FuzzyTermsEnum FuzzyTermsEnum.

Prototype

public FuzzyTermsEnum(Terms terms, AttributeSource atts, Term term, final int maxEdits, final int prefixLength,
        boolean transpositions) throws IOException 

Source Link

Document

Constructor for enumeration of all terms from specified reader which share a prefix of length prefixLength with term and which have at most maxEdits edits.

Usage

From source file:com.sindicetech.siren.search.node.NodeFuzzyQuery.java

License:Open Source License

@Override
protected TermsEnum getTermsEnum(final Terms terms, final AttributeSource atts) throws IOException {
    if (maxEdits == 0 || prefixLength >= term.text().length()) { // can only match if it's exact
        return new SingleTermsEnum(terms.iterator(null), term.bytes());
    }//from   w  w w .  j a  v  a 2s . com
    return new FuzzyTermsEnum(terms, atts, this.getTerm(), maxEdits, prefixLength, transpositions);
}

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From source file:org.pageseeder.flint.lucene.search.Terms.java

License:Apache License

/**
 * Loads all the fuzzy terms in the list of terms given the reader.
 *
 * @param reader Index reader to use./*  ww  w.  j a va2 s . c om*/
 * @param values The list of terms to load.
 * @param term   The term to use.
 *
 * @throws IOException If an error is thrown by the fuzzy term enumeration.
 */
public static void fuzzy(IndexReader reader, List<String> values, Term term, int minSimilarity)
        throws IOException {
    AttributeSource atts = new AttributeSource();
    Fields fields = MultiFields.getFields(reader);
    org.apache.lucene.index.Terms terms = fields == null ? null : fields.terms(term.field());
    if (terms == null)
        return;
    FuzzyTermsEnum fuzzy = new FuzzyTermsEnum(terms, atts, term, minSimilarity, 0, false);
    BytesRef val;
    BytesRef searched = term.bytes();
    while ((val = fuzzy.next()) != null) {
        if (!searched.bytesEquals(val))
            values.add(val.utf8ToString());
    }
}

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From source file:org.pageseeder.flint.lucene.search.Terms.java

License:Apache License

/**
 * Loads all the fuzzy terms in the list of terms given the reader.
 *
 * @param reader  Index reader to use.//w  ww . j a  v  a 2 s .  com
 * @param bucket  Where to store the terms.
 * @param term    The term to use.
 *
 * @throws IOException If an error is thrown by the fuzzy term enumeration.
 */
@Beta
public static void fuzzy(IndexReader reader, Bucket<Term> bucket, Term term, int minSimilarity)
        throws IOException {
    AttributeSource atts = new AttributeSource();
    Fields fields = MultiFields.getFields(reader);
    org.apache.lucene.index.Terms terms = fields == null ? null : fields.terms(term.field());
    if (terms == null)
        return;
    FuzzyTermsEnum fuzzy = new FuzzyTermsEnum(terms, atts, term, minSimilarity, 0, true);
    BytesRef val;
    BytesRef searched = term.bytes();
    while ((val = fuzzy.next()) != null) {
        if (!searched.bytesEquals(val)) {
            Term t = new Term(term.field(), BytesRef.deepCopyOf(val));
            bucket.add(t, reader.docFreq(t));
        }
    }
}

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