1 package org.apache.lucene.queryParser.standard.config;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 import org.apache.lucene.queryParser.core.config.FieldConfig;
23 import org.apache.lucene.queryParser.core.config.FieldConfigListener;
24 import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
25 import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
28 * This listener listens for every field configuration request and assign a
29 * {@link ConfigurationKeys#BOOST} to the
30 * equivalent {@link FieldConfig} based on a defined map: fieldName -> boostValue stored in
31 * {@link ConfigurationKeys#FIELD_BOOST_MAP}.
33 * @see ConfigurationKeys#FIELD_BOOST_MAP
34 * @see ConfigurationKeys#BOOST
36 * @see FieldConfigListener
38 public class FieldBoostMapFCListener implements FieldConfigListener {
40 private static final long serialVersionUID = -5929802948798314067L;
42 private QueryConfigHandler config = null;
44 public FieldBoostMapFCListener(QueryConfigHandler config) {
48 public void buildFieldConfig(FieldConfig fieldConfig) {
49 Map<String, Float> fieldBoostMap = this.config.get(ConfigurationKeys.FIELD_BOOST_MAP);
51 if (fieldBoostMap != null) {
52 Float boost = fieldBoostMap.get(fieldConfig.getField());
56 fieldConfig.addAttribute(BoostAttribute.class).setBoost(boost);
58 // uncomment code below when deprecated query parser attributes are removed
59 // fieldConfig.set(ConfigurationKeys.BOOST, boost);