Lucene example source code file (StandardQueryNodeProcessorPipeline.java)

This example Lucene source code file (StandardQueryNodeProcessorPipeline.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lucene tags/keywords

booleansinglechildoptimizationquerynodeprocessor, boostquerynodeprocessor, defaultphraseslopquerynodeprocessor, groupquerynodeprocessor, matchalldocsquerynodeprocessor, multitermrewritemethodprocessor, parametricrangequerynodeprocessor, phraseslopquerynodeprocessor, phraseslopquerynodeprocessor, querynodeprocessorpipeline, removedeletedquerynodesprocessor, standardquerynodeprocessorpipeline, standardquerynodeprocessorpipeline, wildcardquerynodeprocessor

The Lucene StandardQueryNodeProcessorPipeline.java source code

package org.apache.lucene.queryParser.standard.processors;

/**
 * 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.config.QueryConfigHandler;
import org.apache.lucene.queryParser.core.processors.NoChildOptimizationQueryNodeProcessor;
import org.apache.lucene.queryParser.core.processors.QueryNodeProcessorPipeline;
import org.apache.lucene.queryParser.core.processors.RemoveDeletedQueryNodesProcessor;
import org.apache.lucene.queryParser.standard.builders.StandardQueryTreeBuilder;
import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler;
import org.apache.lucene.queryParser.standard.parser.StandardSyntaxParser;
import org.apache.lucene.search.Query;

/**
 * This pipeline has all the processors needed to process a query node tree,
 * generated by {@link StandardSyntaxParser}, already assembled. <br/>
 * <br/>
 * The order they are assembled affects the results. <br/>
 * <br/>
 * This processor pipeline was designed to work with
 * {@link StandardQueryConfigHandler}. <br/>
 * <br/>
 * The result query node tree can be used to build a {@link Query} object using
 * {@link StandardQueryTreeBuilder}. <br/>
 * 
 * @see StandardQueryTreeBuilder
 * @see StandardQueryConfigHandler
 * @see StandardSyntaxParser
 */
public class StandardQueryNodeProcessorPipeline extends
    QueryNodeProcessorPipeline {

  public StandardQueryNodeProcessorPipeline(QueryConfigHandler queryConfig) {
    super(queryConfig);

    add(new WildcardQueryNodeProcessor());    
    add(new MultiFieldQueryNodeProcessor());
    add(new FuzzyQueryNodeProcessor());
    add(new MatchAllDocsQueryNodeProcessor());
    add(new LowercaseExpandedTermsQueryNodeProcessor());
    add(new ParametricRangeQueryNodeProcessor());
    add(new AllowLeadingWildcardProcessor());    
    add(new AnalyzerQueryNodeProcessor());
    add(new PhraseSlopQueryNodeProcessor());
    add(new GroupQueryNodeProcessor());
    add(new NoChildOptimizationQueryNodeProcessor());
    add(new RemoveDeletedQueryNodesProcessor());
    add(new RemoveEmptyNonLeafQueryNodeProcessor());
    add(new BooleanSingleChildOptimizationQueryNodeProcessor());
    add(new DefaultPhraseSlopQueryNodeProcessor());
    add(new BoostQueryNodeProcessor());    
    add(new MultiTermRewriteMethodProcessor());
  }

}