Example usage for org.apache.lucene.queryparser.flexible.standard StandardQueryParser setMultiFields

Introduction

In this page you can find the example usage for org.apache.lucene.queryparser.flexible.standard StandardQueryParser setMultiFields.

Prototype

public void setMultiFields(CharSequence[] fields) 

Source Link

Document

Set the fields a query should be expanded to when the field is null

Usage

From source file:de.walware.statet.r.internal.core.rhelp.index.SearchQuery.java

License:Open Source License

static Query createMainQuery(final String fields[], final String queryText) throws QueryNodeException {
    final StandardQueryParser p = new StandardQueryParser(QUERY_ANALYZER);
    p.setDefaultOperator(Operator.AND);//w  ww  .  j  a va  2  s.c o m
    p.setAllowLeadingWildcard(true);
    p.setMultiFields(fields);
    return p.parse(queryText, null);
}

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From source file:org.scilab.modules.xcos.palette.PaletteSearcher.java

/**
 * @param str Query/*  w  ww . j a  va  2s.c o  m*/
 * @return paths to the found blocks
 */
public List<Document> search(String str) {
    List<Document> found = new ArrayList<>();
    try (IndexReader reader = DirectoryReader.open(mgr.getDirectory())) {
        IndexSearcher searcher = new IndexSearcher(reader);

        StandardQueryParser queryParserHelper = new StandardQueryParser();
        queryParserHelper.setAllowLeadingWildcard(true);
        queryParserHelper.setLowercaseExpandedTerms(true);
        queryParserHelper.setAnalyzer(mgr.getAnalyzer());
        queryParserHelper.setMultiFields(new String[] { "refname", "refpurpose", "content" });

        Query query = queryParserHelper.parse(str, null);
        TopDocs results = searcher.search(query, XcosConstants.MAX_HITS);
        ScoreDoc[] hits = results.scoreDocs;

        if (hits.length == 0) {
            query = queryParserHelper.parse("*" + str + "*", null);
            results = searcher.search(query, XcosConstants.MAX_HITS);
            hits = results.scoreDocs;
        }

        for (int i = 0; i < hits.length; i++) {
            Document doc = searcher.doc(hits[i].doc);
            found.add(doc);
        }
    } catch (IOException | QueryNodeException e) {
        Logger.getLogger(PaletteSearcher.class.getName()).log(Level.SEVERE, null, e);
    }
    return found;
}

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