| /* |
| * 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. |
| */ |
| |
| /** |
| * Interfaces and implementations used by query node processors |
| * |
| * <h2>Query Node Processors</h2> |
| * <p> |
| * The package <tt>org.apache.lucene.queryParser.processors</tt> contains interfaces |
| * that should be implemented by every query node processor. |
| * <p> |
| * The interface that every query node processor should implement is {@link org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessor}. |
| * A query node processor should be used to process a {@link org.apache.lucene.queryparser.flexible.core.nodes.QueryNode} tree. |
| * {@link org.apache.lucene.queryparser.flexible.core.nodes.QueryNode} trees can be programmatically created or generated by a |
| * text parser. See {@link org.apache.lucene.queryparser.flexible.core.parser} for more details about text parsers. |
| * |
| * <p> |
| * A query node processor should be used to process a {@link org.apache.lucene.queryparser.flexible.core.nodes.QueryNode} tree. |
| * {@link org.apache.lucene.queryparser.flexible.core.nodes.QueryNode} trees can be programmatically created or generated by a |
| * text parser. See {@link org.apache.lucene.queryparser.flexible.core.parser} for more details about text parsers. |
| * |
| * <p> |
| * A pipeline of processors can be assembled using {@link org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorPipeline}. |
| * |
| * <p> |
| * Implementors may want to extend {@link org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl}, which simplifies |
| * the implementation, because it walks automatically the {@link org.apache.lucene.queryparser.flexible.core.nodes.QueryNode}. See |
| * {@link org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl} for more details. |
| */ |
| package org.apache.lucene.queryparser.flexible.core.processors; |
| |
