Lucene custom QueryParser no results

Question

I've subclassed QueryParser in Apache Lucene to change input field name (user reuqest) to corresponding field name in my model class.

public class QueryParserMoney extends QueryParser {

public QueryParserMoney(Version matchVersion, String f, Analyzer a) {
    super(matchVersion, f, a);

}

@Override
protected Query newTermQuery(Term term) {
    if (term.field() == "money") {
        PaddedIntegerBridge pB = new PaddedIntegerBridge();

        TermRangeQuery trq = new TermRangeQuery("moneyTo",
        pB.objectToString(Integer.parseInt(term.text())), "*",
                true, true);

        return trq;

    }
    return super.newTermQuery(term);
} 

the input query is like money:5000 and i'm changing it to moneyTo:[5000 TO *] generated query is ok, I'm checking query with Luke, but in Java I have 0 results.

Have you any suggestions where I'm making mistake?

Answer 1

Is moneyTo a numeric field? If so, you should use NumericRangeQuery instead of TermRangeQuery. If moneyTo is a string field, it does not look like TermRangeQuery recognizes "*" as an open endpoint, and you should use null instead.