Examples with BoostQuery org.apache.lucene.search.BoostQuery used on opensource projects

Example 86 with BoostQuery

use of org.apache.lucene.search.BoostQuery in project lucene-solr by apache.

the class TermQueryBuilder method getQuery.

@Override
public Query getQuery(Element e) throws ParserException {
    String field = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");
    String value = DOMUtils.getNonBlankTextOrFail(e);
    Query tq = new TermQuery(new Term(field, value));
    float boost = DOMUtils.getAttribute(e, "boost", 1.0f);
    if (boost != 1f) {
        tq = new BoostQuery(tq, boost);
    }
    return tq;
}

Example 87 with BoostQuery

use of org.apache.lucene.search.BoostQuery in project lucene-solr by apache.

the class TermsQueryBuilder method getQuery.

@Override
public Query getQuery(Element e) throws ParserException {
    String fieldName = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");
    String text = DOMUtils.getNonBlankTextOrFail(e);
    BooleanQuery.Builder bq = new BooleanQuery.Builder();
    bq.setMinimumNumberShouldMatch(DOMUtils.getAttribute(e, "minimumNumberShouldMatch", 0));
    try (TokenStream ts = analyzer.tokenStream(fieldName, text)) {
        TermToBytesRefAttribute termAtt = ts.addAttribute(TermToBytesRefAttribute.class);
        Term term = null;
        ts.reset();
        while (ts.incrementToken()) {
            term = new Term(fieldName, BytesRef.deepCopyOf(termAtt.getBytesRef()));
            bq.add(new BooleanClause(new TermQuery(term), BooleanClause.Occur.SHOULD));
        }
        ts.end();
    } catch (IOException ioe) {
        throw new RuntimeException("Error constructing terms from index:" + ioe);
    }
    Query q = bq.build();
    float boost = DOMUtils.getAttribute(e, "boost", 1.0f);
    return new BoostQuery(q, boost);
}

Example 88 with BoostQuery

use of org.apache.lucene.search.BoostQuery in project lucene-solr by apache.

the class BooleanQueryBuilder method getQuery.

/* (non-Javadoc)
    * @see org.apache.lucene.xmlparser.QueryObjectBuilder#process(org.w3c.dom.Element)
    */
@Override
public Query getQuery(Element e) throws ParserException {
    BooleanQuery.Builder bq = new BooleanQuery.Builder();
    bq.setMinimumNumberShouldMatch(DOMUtils.getAttribute(e, "minimumNumberShouldMatch", 0));
    NodeList nl = e.getChildNodes();
    final int nlLen = nl.getLength();
    for (int i = 0; i < nlLen; i++) {
        Node node = nl.item(i);
        if (node.getNodeName().equals("Clause")) {
            Element clauseElem = (Element) node;
            BooleanClause.Occur occurs = getOccursValue(clauseElem);
            Element clauseQuery = DOMUtils.getFirstChildOrFail(clauseElem);
            Query q = factory.getQuery(clauseQuery);
            bq.add(new BooleanClause(q, occurs));
        }
    }
    Query q = bq.build();
    float boost = DOMUtils.getAttribute(e, "boost", 1.0f);
    if (boost != 1f) {
        q = new BoostQuery(q, boost);
    }
    return q;
}

Example 89 with BoostQuery

use of org.apache.lucene.search.BoostQuery in project lucene-solr by apache.

the class BoostingQueryBuilder method getQuery.

@Override
public Query getQuery(Element e) throws ParserException {
    Element mainQueryElem = DOMUtils.getChildByTagOrFail(e, "Query");
    mainQueryElem = DOMUtils.getFirstChildOrFail(mainQueryElem);
    Query mainQuery = factory.getQuery(mainQueryElem);
    Element boostQueryElem = DOMUtils.getChildByTagOrFail(e, "BoostQuery");
    float boost = DOMUtils.getAttribute(boostQueryElem, "boost", DEFAULT_BOOST);
    boostQueryElem = DOMUtils.getFirstChildOrFail(boostQueryElem);
    Query boostQuery = factory.getQuery(boostQueryElem);
    Query bq = new BoostingQuery(mainQuery, boostQuery, boost);
    boost = DOMUtils.getAttribute(e, "boost", 1.0f);
    if (boost != 1f) {
        return new BoostQuery(bq, boost);
    }
    return bq;
}

Example 90 with BoostQuery

use of org.apache.lucene.search.BoostQuery in project lucene-solr by apache.

the class ConstantScoreQueryBuilder method getQuery.

@Override
public Query getQuery(Element e) throws ParserException {
    Element queryElem = DOMUtils.getFirstChildOrFail(e);
    Query q = new ConstantScoreQuery(queryFactory.getQuery(queryElem));
    float boost = DOMUtils.getAttribute(e, "boost", 1.0f);
    if (boost != 1f) {
        q = new BoostQuery(q, boost);
    }
    return q;
}