1 package org.apache.lucene.queryParser.precedence.processors;
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.
20 import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
21 import org.apache.lucene.queryParser.precedence.PrecedenceQueryParser;
22 import org.apache.lucene.queryParser.standard.processors.GroupQueryNodeProcessor;
23 import org.apache.lucene.queryParser.standard.processors.StandardQueryNodeProcessorPipeline;
27 * This processor pipeline extends {@link StandardQueryNodeProcessorPipeline} and enables
28 * boolean precedence on it.
31 * EXPERT: the precedence is enabled by removing {@link GroupQueryNodeProcessor} from the
32 * {@link StandardQueryNodeProcessorPipeline} and appending {@link BooleanModifiersQueryNodeProcessor}
36 * @see PrecedenceQueryParser
37 * @see StandardQueryNodeProcessorPipeline
39 public class PrecedenceQueryNodeProcessorPipeline extends StandardQueryNodeProcessorPipeline {
42 * @see StandardQueryNodeProcessorPipeline#StandardQueryNodeProcessorPipeline(QueryConfigHandler)
44 public PrecedenceQueryNodeProcessorPipeline(QueryConfigHandler queryConfig) {
47 for (int i = 0 ; i < size() ; i++) {
49 if (get(i).getClass().equals(GroupQueryNodeProcessor.class)) {
55 add(new BooleanModifiersQueryNodeProcessor());