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Lucene example source code file (AnyQueryNodeBuilder.java)

This example Lucene source code file (AnyQueryNodeBuilder.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

anyquerynode, anyquerynodebuilder, anyquerynodebuilder, booleanquery, booleanquery, list, object, query, query, querynode, querynodeexception, querynodeexception, standardquerybuilder, toomanyclauses, util

The Lucene AnyQueryNodeBuilder.java source code

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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

import java.util.List;

import org.apache.lucene.messages.MessageImpl;
import org.apache.lucene.queryParser.core.QueryNodeException;
import org.apache.lucene.queryParser.core.builders.QueryTreeBuilder;
import org.apache.lucene.queryParser.core.messages.QueryParserMessages;
import org.apache.lucene.queryParser.core.nodes.AnyQueryNode;
import org.apache.lucene.queryParser.core.nodes.QueryNode;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.BooleanQuery.TooManyClauses;

public class AnyQueryNodeBuilder implements StandardQueryBuilder {

  public AnyQueryNodeBuilder() {
    // empty constructor

  public BooleanQuery build(QueryNode queryNode) throws QueryNodeException {
    AnyQueryNode andNode = (AnyQueryNode) queryNode;

    BooleanQuery bQuery = new BooleanQuery();
    List<QueryNode> children = andNode.getChildren();

    if (children != null) {

      for (QueryNode child : children) {
        Object obj = child.getTag(QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);

        if (obj != null) {
          Query query = (Query) obj;

          try {
            bQuery.add(query, BooleanClause.Occur.SHOULD);
          } catch (TooManyClauses ex) {

            throw new QueryNodeException(new MessageImpl(
             * BooleanQuery.getMaxClauseCount()
             */QueryParserMessages.EMPTY_MESSAGE), ex);






    return bQuery;



Other Lucene examples (source code examples)

Here is a short list of links related to this Lucene AnyQueryNodeBuilder.java source code file:

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