Examples with ValueComparator org.apache.jackrabbit.core.query.lucene.join.ValueComparator used on opensource projects

Example 1 with ValueComparator

use of org.apache.jackrabbit.core.query.lucene.join.ValueComparator in project jackrabbit by apache.

the class LuceneQueryFactory method mapConstraintToQueryAndFilter.

protected Predicate mapConstraintToQueryAndFilter(QueryPair query, Constraint constraint, Map<String, NodeType> selectorMap, JackrabbitIndexSearcher searcher, IndexReader reader) throws RepositoryException, IOException {
    Predicate filter = Predicate.TRUE;
    if (constraint instanceof And) {
        And and = (And) constraint;
        filter = mapConstraintToQueryAndFilter(query, and.getConstraint1(), selectorMap, searcher, reader);
        Predicate other = mapConstraintToQueryAndFilter(query, and.getConstraint2(), selectorMap, searcher, reader);
        if (filter == Predicate.TRUE) {
            filter = other;
        } else if (other != Predicate.TRUE) {
            filter = Predicates.and(filter, other);
        }
    } else if (constraint instanceof Comparison) {
        Comparison c = (Comparison) constraint;
        Transform transform = new Transform(c.getOperand1());
        DynamicOperand left = transform.operand;
        final String operator = c.getOperator();
        StaticOperand right = c.getOperand2();
        if (left instanceof Length || left instanceof FullTextSearchScore || (((!JCR_OPERATOR_EQUAL_TO.equals(operator) && !JCR_OPERATOR_LIKE.equals(operator)) || transform.transform != TRANSFORM_NONE) && (left instanceof NodeName || left instanceof NodeLocalName))) {
            try {
                int type = PropertyType.UNDEFINED;
                if (left instanceof Length) {
                    type = PropertyType.LONG;
                } else if (left instanceof FullTextSearchScore) {
                    type = PropertyType.DOUBLE;
                }
                final DynamicOperand operand = c.getOperand1();
                final Value value = evaluator.getValue(right, type);
                filter = new RowPredicate() {

                    @Override
                    protected boolean evaluate(Row row) throws RepositoryException {
                        return new ValueComparator().evaluate(operator, evaluator.getValue(operand, row), value);
                    }
                };
            } catch (ValueFormatException e) {
                throw new InvalidQueryException(e);
            }
        } else {
            Query cq = getComparisonQuery(left, transform.transform, operator, right, selectorMap);
            query.subQuery.add(cq, MUST);
        }
    } else if (constraint instanceof DescendantNode) {
        final DescendantNode descendantNode = (DescendantNode) constraint;
        Query context = getNodeIdQuery(UUID, descendantNode.getAncestorPath());
        query.mainQuery = new DescendantSelfAxisQuery(context, query.subQuery, false);
    } else {
        query.subQuery.add(create(constraint, selectorMap, searcher), MUST);
    }
    return filter;
}