package org.apache.lucene.queryParser.standard.builders;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import org.apache.lucene.queryParser.core.QueryNodeException;
import org.apache.lucene.queryParser.core.nodes.ParametricQueryNode;
import org.apache.lucene.queryParser.core.nodes.QueryNode;
import org.apache.lucene.queryParser.core.nodes.ParametricQueryNode.CompareOperator;
import org.apache.lucene.queryParser.standard.config.MultiTermRewriteMethodAttribute;
import org.apache.lucene.queryParser.standard.nodes.RangeQueryNode;
import org.apache.lucene.search.MultiTermQuery;
import org.apache.lucene.search.TermRangeQuery;
/**
* Builds a {@link TermRangeQuery} object from a {@link RangeQueryNode} object.
*/
public class RangeQueryNodeBuilder implements StandardQueryBuilder {
public RangeQueryNodeBuilder() {
// empty constructor
}
public TermRangeQuery build(QueryNode queryNode) throws QueryNodeException {
RangeQueryNode rangeNode = (RangeQueryNode) queryNode;
ParametricQueryNode upper = rangeNode.getUpperBound();
ParametricQueryNode lower = rangeNode.getLowerBound();
boolean lowerInclusive = false;
boolean upperInclusive = false;
if (upper.getOperator() == CompareOperator.LE) {
upperInclusive = true;
}
if (lower.getOperator() == CompareOperator.GE) {
lowerInclusive = true;
}
String field = rangeNode.getField().toString();
TermRangeQuery rangeQuery = new TermRangeQuery(field, lower
.getTextAsString(), upper.getTextAsString(), lowerInclusive,
upperInclusive, rangeNode.getCollator());
MultiTermQuery.RewriteMethod method = (MultiTermQuery.RewriteMethod)queryNode.getTag(MultiTermRewriteMethodAttribute.TAG_ID);
if (method != null) {
rangeQuery.setRewriteMethod(method);
}
return rangeQuery;
}
}